Table of Contents
- Safety information
- Chapter 1: Product Introduction
- Chapter 2: Basic installation
- Chapter 3: BIOS setup
- Chapter 4: RAID Support
- Appendix
ASUS X99-A II User Manual
Displayed below is the user manual for X99-A II by ASUS which is a product in the Motherboards category. This manual has pages.
Related Manuals
Motherboard
X99-A II
ii
E11090
First Edition
April 2016
Copyright© 2016 ASUSTeK COMPUTER INC. All Rights Reserved.
No part of this manual, including the products and software described in it, may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any
means, except documentation kept by the purchaser for backup purposes, without the express written
permission of ASUSTeK COMPUTER INC. (“ASUS”).
Product warranty or service will not be extended if: (1) the product is repaired, modied or altered, unless
such repair, modication of alteration is authorized in writing by ASUS; or (2) the serial number of the
product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS
DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS,
LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE),
EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY
DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR
INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE,
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Offer to Provide Source Code of Certain Software
This product contains copyrighted software that is licensed under the General Public License (“GPL”),
under the Lesser General Public License Version (“LGPL”) and/or other Free Open Source Software
Licenses. Such software in this product is distributed without any warranty to the extent permitted by the
applicable law. Copies of these licenses are included in this product.
Where the applicable license entitles you to the source code of such software and/or other additional data,
you may obtain it for a period of three years after our last shipment of the product, either
(1) for free by downloading it from https://www.asus.com/support/
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iii
Contents
Safety information ...................................................................................................... vi
About this guide ........................................................................................................ vii
X99-A II specications summary .............................................................................. ix
Package contents ...................................................................................................... xv
Installation tools and components ......................................................................... xvi
Chapter 1: Product Introduction
1.1 Motherboard overview ............................................................................... 1-1
1.1.1 Before you proceed ..................................................................... 1-1
1.1.2 Motherboard layout ..................................................................... 1-2
1.1.3 Central Processing Unit (CPU) ................................................... 1-4
1.1.4 System memory .......................................................................... 1-5
1.1.5 Expansion slots ........................................................................... 1-7
1.1.6 Onboard buttons and switches....................................................1-9
1.1.7 Jumpers .................................................................................... 1-12
1.1.8 Onboard LEDs .......................................................................... 1-14
1.1.9 Internal connectors....................................................................1-21
Chapter 2: Basic installation
2.1 Building your PC system...........................................................................2-1
2.1.1 Motherboard installation .............................................................. 2-1
2.1.2 CPU installation...........................................................................2-3
2.1.3 CPU heatsink and fan assembly installation ............................... 2-6
2.1.4 DIMM installation......................................................................... 2-7
2.1.5 ATX Power connection................................................................2-8
2.1.6 SATA device connection ............................................................. 2-9
2.1.7 Front I/O Connector .................................................................. 2-10
2.1.8 Expansion Card installation....................................................... 2-11
2.2 BIOS update utility ................................................................................... 2-12
2.3 Motherboard rear and audio connections ............................................. 2-13
2.3.1 Rear I/O connection .................................................................. 2-13
2.3.2 Audio I/O connections ............................................................... 2-15
2.4 Starting up for the rst time .................................................................... 2-17
2.5 Turning off the computer ........................................................................ 2-18
iv
Chapter 3: BIOS setup
3.1 Knowing BIOS ............................................................................................ 3-1
3.2 BIOS setup program .................................................................................. 3-2
3.2.1 EZ Mode......................................................................................3-3
3.2.2 Advanced Mode .......................................................................... 3-4
3.2.3 QFan Control...............................................................................3-7
3.2.4 EZ Tuning Wizard ....................................................................... 3-9
3.3 My Favorites ............................................................................................. 3-12
3.4 Main menu ................................................................................................ 3-14
3.5 Ai Tweaker menu......................................................................................3-15
3.6 Advanced menu ....................................................................................... 3-18
3.6.1 CPU Conguration .................................................................... 3-19
3.6.2 PCH Conguration .................................................................... 3-20
3.6.3 PCH Storage Conguration....................................................... 3-21
3.6.4 System Agent Conguration ..................................................... 3-23
3.6.5 USB Conguration .................................................................... 3-23
3.6.6 Platform Misc Conguration ...................................................... 3-24
3.6.7 Onboard Devices Conguration ................................................ 3-24
3.6.8 APM Conguration .................................................................... 3-26
3.6.9 Network Stack Conguration..................................................... 3-26
3.6.10 HDD/SSD SMART Information ................................................. 3-27
3.7 Monitor menu ........................................................................................... 3-28
3.8 Boot menu ................................................................................................ 3-29
3.9 Tool menu ................................................................................................. 3-32
3.9.1 ASUS EZ Flash 3 Utility ............................................................ 3-32
3.9.2 Secure Erase ............................................................................ 3-33
3.9.3 ASUS Overclocking Prole ....................................................... 3-34
3.9.4 ASUS SPD Information ............................................................. 3-35
3.10 Exit menu .................................................................................................. 3-36
3.11 Updating BIOS .......................................................................................... 3-37
3.11.1 EZ Update ................................................................................. 3-37
3.11.2 ASUS EZ Flash 3 ...................................................................... 3-38
3.11.3 ASUS CrashFree BIOS 3 .......................................................... 3-40
v
Chapter 4: RAID Support
4.1 RAID congurations .................................................................................. 4-1
4.1.1 RAID denitions .......................................................................... 4-1
4.1.2 Installing Serial ATA hard disks .................................................. 4-2
4.1.3 Intel® Rapid Storage Technology in UEFI BIOS .......................... 4-2
4.1.4 Intel® Rapid Storage Technology Option ROM utility .................. 4-6
4.2 Creating a RAID driver disk.....................................................................4-10
4.2.1 Creating a RAID driver disk in Windows® .................................. 4-10
Appendix
Notices .................................................................................................................... A-1
ASUS contact information ...................................................................................... A-5
vi
Safety information
Electrical safety
• To prevent electrical shock hazard, disconnect the power cable from the electrical outlet
before relocating the system.
• When adding or removing devices to or from the system, ensure that the power cables
for the devices are unplugged before the signal cables are connected. If possible,
disconnect all power cables from the existing system before you add a device.
• Before connecting or removing signal cables from the motherboard, ensure that all
power cables are unplugged.
• Seek professional assistance before using an adapter or extension cord. These devices
could interrupt the grounding circuit.
• Ensure that your power supply is set to the correct voltage in your area. If you are not
sure about the voltage of the electrical outlet you are using, contact your local power
company.
• If the power supply is broken, do not try to x it by yourself. Contact a qualied service
technician or your retailer.
Operation safety
• Before installing the motherboard and adding devices on it, carefully read all the manuals
that came with the package.
• Before using the product, ensure all cables are correctly connected and the power
cables are not damaged. If you detect any damage, contact your dealer immediately.
• To avoid short circuits, keep paper clips, screws, and staples away from connectors,
slots, sockets and circuitry.
• Avoid dust, humidity, and temperature extremes. Do not place the product in any area
where it may become wet.
• Place the product on a stable surface.
• If you encounter technical problems with the product, contact a qualied service
technician or your retailer.
vii
About this guide
This user guide contains the information you need when installing and conguring the
motherboard.
How this guide is organized
This guide contains the following parts:
1. Chapter 1: Product Introduction
This chapter describes the features of the motherboard and the new technology it
supports. It includes description of the switches, jumpers, and connectors on the
motherboard.
2. Chapter 2: Basic Installation
This chapter lists the hardware setup procedures that you have to perform when
installing system components.
3. Chapter 3: BIOS Setup
This chapter tells how to change system settings through the BIOS Setup menus.
Detailed descriptions of the BIOS parameters are also provided.
4. Chapter 4: Raid Support
This chapter describes the RAID congurations.
Where to nd more information
Refer to the following sources for additional information and for product and software
updates.
1. ASUS website
The ASUS website (www.asus.com) provides updated information on ASUS hardware
and software products.
2. Optional documentation
Your product package may include optional documentation, such as warranty yers,
that may have been added by your dealer. These documents are not part of the
standard package.
viii
Conventions used in this guide
To ensure that you perform certain tasks properly, take note of the following symbols used
throughout this manual.
DANGER/WARNING: Information to prevent injury to yourself when trying to
complete a task.
CAUTION: Information to prevent damage to the components when trying to
complete a task.
IMPORTANT: Instructions that you MUST follow to complete a task.
NOTE: Tips and additional information to help you complete a task.
Typography
Bold text Indicates a menu or an item to select.
Italics
Used to emphasize a word or a phrase.
<Key> Keys enclosed in the less-than and greater-than sign
means that you must press the enclosed key.
Example: <Enter> means that you must press the Enter or
Return key.
<Key1> + <Key2> + <Key3> If you must press two or more keys simultaneously, the key
names are linked with a plus sign (+).
ix
(continued on the next page)
X99-A II specications summary
CPU
New Intel® Core™ i7 X-Series Processors on LGA 2011-3 socket
Supports 14nm CPU
Supports Intel® Turbo Boost Technology 3.0*
* The Intel® Turbo Boost Technology 2.0 support depends on the CPU
types.
Chipset Intel® X99 Chipset
Memory
8 x DIMM, max. 128GB, DDR4 3333(O.C.) / 3300(O.C.) /
3200(O.C.) / 3000(O.C.) / 2800(O.C.)* / 2666(O.C.)* / 2400(O.C.)* /
2133 MHz, non-ECC, un-buffered memory
Quad channel memory architecture
Supports Intel® Extreme Memory Prole (XMP)
* Hyper DIMM support is subject to the physical characteristics of
individual CPUs. Please refer to Memory QVL (Qualied Vendors List)
for details.
Expansion Slots
40-Lane CPU
3 x PCI Express 3.0/2.0 x16 slots* (single at x16, dual at x16/x16,
triple at x8/x16/x8)
1 x PCI Express 2.0 x16 slot** (PCIe x16_2, max. at x4 mode,
compatible with PCIe x1 and x4 devices)
2 x PCI Express 2.0 x1 slots** (compatible with PCIe x1 devices)
28-Lane CPU
3 x PCI Express 3.0/2.0 x16 slots* (single@x16, dual@x16/x8,
triple@x8/x8***/x8)
1 x PCI Express 2.0 x16 slot** (PCIe x16_2, max. at x4 mode,
compatible with PCIe x1 and x4 devices)
2 x PCI Express 2.0 x1 slots** (compatible with PCIe x1 devices)
* PCIe x16_1 and PCIe x16_4 slots share the same bandwidth. PCIe
x16_4 slot support up to x8 mode.
** The PCIe x16_2 slot shares bandwidth with USB 3.1 and PCIe x1_2
slots. By default, the PCIe x16_2 slot automatically runs at x1 mode.
*** When using a 28-lane CPU, the PCIe x16_3 slot support up to x8 mode.
Multi-GPU Support
Supports NVIDIA® 3-Way/Quad-GPU SLI™ Technology (with 2
PCIe x16 graphics card)
Supports AMD® 3-Way/Quad-GPU CrossFireX™ Technology (with
2 PCIe x16 graphics card)
Storage
New Intel® Core™ i7 X-Series Processors
- 1 x M.2 PCIe 3.0 x4 Socket 3 with M Key, type
2242/2260/2280/22110 (support PCIe storage device only)*
- 1 x U.2 port (support PCIe 3.0 x4 NVM Express storage)*
Intel® X99 Chipset with RAID 0, 1, 5, 10 and Intel Rapid Storage
Technology 14 support
- 1 x SATA Express port (compatible with 2 x SATA 6.0 Gb/s ports)
- 8 x SATA 6.0 Gb/s ports**
x
X99-A II specications summary
Storage
- Supports Intel® Smart Response Technology***
* M.2 shares bandwidth with U.2. Only one device can be activated at a
time.
** Due to chipset behavior, The SATA6G_78, SATA6G_910 ports (black)
do not support IRST including RAID conguration.
*** These functions will work depending on the CPU installed.
LAN
Gigabit Intel® LAN connection - 802.3az Energy Efcient Ethernet
(EEE) appliance
Intel® I218-V Gigabit LAN- Dual interconnect between the integrated
Media Access Controller (MAC) and physical layer (PHY)
ASUS LAN Guard
ASUS Turbo LAN Utility
Audio
Realtek® ALC1150 8-channel high denition audio CODEC featuring
Crystal Sound 3
- Power pre-regulator: Reduces power input noise to ensure
consistent performance
- Separate layer for left and right track, ensuring both sound deliver
equal quality
- Top notch audio sensation delivers according to the audio
conguration
- Audio shielding ensures precision analog/digital separation and
greatly reduced multi-lateral interference
- EMI protection cover to prevent electrical noise to affect the
amplier quality
- Audio Amplier to enhance the highest quality sound for
headphone and speakers
- Unique de-pop circuit to reduce start-up popping noise to audio
outputs
- Premium Japan-made audio capacitors provide warm, natural,
and immersive sound with exceptional clarity and delity
- High quality 112 dB SNR stereo playback output (Line-out at back)
and 104 dB SNR recording input (Line-in) support
- Absolute Pitch 192 khz/24 bit True BD Lossless Sound
- BD audio layer content protection
- DTS Studio Sound
- DTS Connect
- Supports jack-detection, multi-streaming and front panel jack-
retasking (MIC)
- Optical S/PDIF out ports at rear I/O
USB
Intel® X99 Chipset- supports ASUS USB 3.1 Boost
- 4 x USB 3.0/2.0 ports at mid-board for front panel support
- 1 x USB 3.0/2.0 port at rear panel (Supports USB BIOS Flashback)
- 8 x USB 2.0/1.1 ports (4 ports at mid-board, 4 ports at rear panel)
ASMedia® USB 3.1 controllers- supports ASUS USB 3.1 Boost
- 2 x USB 3.1/3.0/2.0 ports at back panel (Type-A and Type-C)
ASMedia® USB 3.0 controllers- supports ASUS USB 3.1 Boost
- 3 x USB 3.0/2.0 ports at back panel (blue)
xi
(continued on the next page)
X99-A II specications summary
ASUS Exclusive
Features
Performance
5-Way Optimization by Dual Intelligent Processors 5
- Whole system optimization with a single click! Perfectly
consolidates better CPU performance, power saving, digital
power control, system cooling and app usages.
DIGI+ Power Control
- CPU Power: Digital 8-phase power design
- DRAM Power: Digital 4-phase power design
TPU
- Auto Tuning, TPU
EPU
Fan Xpert4
Turbo Core App
UEFI BIOS
EZ Tuning Wizard
S.M.A.R.T.
Secure Erase
GPU Post
AURA Lighting Effect
CrashFree BIOS 3
EZ Flash 3
32Gb/s U.2 & M.2 onboard
- PCIe 3.0 x4
Special Memory O.C. Design
- Superb memory O.C. capability under full load by minimizing
the coupling noise and signal reection effect
Gaming
AURA
Turbo LAN
- Fast and smooth online gaming with lower pings and less lags
Crystal Sound 3
- Hear the cleanest sound with dedicated audio design onboard!
Connectivity
32Gb/s U.2 & M.2 onboard
- PCIe 3.0 x4
Thunderbolt 3 Support
- Blistering-fast 40Gb/s data transfers upgrades with
ThunderboltEX 3 Card.
xii
X99-A II specications summary
ASUS Exclusive
Features
Entertainment
Remote GO!
- Remote GO! Function: Cloud GO!, Remote Desktop, Remote
Keyboard & Mouse, File Transfer
- Wi-Fi GO! & NFC Remote app for portable smartphone/tablet,
supporting iOS 9 and Android™ 4.0 systems
Media Streamer
- Pipe music or movies from your PC to a smart TV, your
entertainment goes wherever you go!
- Media Streamer app for portable smartphone/tablet, supporting
iOS 9 and Android™ 4.0 systems
HyStream
- Stream iOS devices’ screen on your PC screen*
* Contact your device vendor for supporting information.
Mobo Connect
EZ DIY
Push Notice
- Monitor your PC status with smart devices in real time
USB BIOS Flashback
PC Cleaner
- Fast and easy way to get rid of unnecessary junk les
Q-Design
- Q-Code
- Q-Connector
- Q-DIMM
- Q-LED (CPU, DRAM, VGA, BOOT, PCIE_LED)
- Q-Shield
- Q-Slot
ASUS Special Features
ASUS 5X Protection II:
- ASUS LANGuard - 2.5X higher surge tolerance
- ASUS Overvoltage Protection - World-class circuit-protecting
power design
- ASUS DIGI+ VRM - 8 Phase digital power design
- ASUS DRAM Overcurrent Protection - Prevents damage from
short circuits
- ASUS Stainless-Steel Back I/O - 3X corrosion-resistance for
greater durability
- Mobo Connect
- LAN Guard
- USB 3.1 Boost
- Ai Charger+
- Disk Unlocker
- AI Suite 3
- MemOK!
- EZ XMP
xiii
ASUS Quiet Thermal
Solution
Quiet Thermal Design
- ASUS Fan Xpert 3
- ASUS Fanless Design: Heatsink solution
ASUS Exclusive
Overclocking Features
Precision Tweaker 2
- vCore: Adjustable CPU Core voltage at 0.001 V increment
- vCache: Adjustable CPU Cache voltage at 0.001 V increment
- vCCIN: Adjustable CPU Input voltage at 0.01 V increment
- vCCSA: Adjustable CPU System Agent voltage at 0.001 V
increment
- vDRAM Bus: 110-step Memory voltage control
- vPCH: 176-step Chipset voltage control
SFS (Stepless Frequency Selection)
- BCLK/PCIE frequency tuning from 80 MHz up to 300 MHz at
0.1 MHz increment.
Overclocking Protection
- ASUS C.P.R. (CPU Parameter Recall)
Rear Panel I/O Ports
1 x BIOS Flashback button
1 x Optical S/PDIF out port
1 x Intel® LAN (RJ45) port
1 x USB 3.1/3.0 port (Type-A, Teal blue)
1 x USB 3.1/3.0 port (Type-C)
4 x USB 3.0/2.0 ports (Blue, right bottom port supports USB BIOS
Flashback)
4 x USB 2.0/1.1 ports
1 x PS/2 Keyboard/Mouse combo port
8-channel Audio I/O ports
Internal I/O Connectors
2 x USB 3.0/2.0 connectors, support additional 4 USB ports (19-pin)
2 x USB 2.0/1.1 connectors, support additional 4 USB ports
1 x U.2 connector
1 x M.2 Socket 3 with M Key design, type 2242/2260/2280/22110
storage devices support (supports PCIE SSD only)
1 x SATA Express connector (gray)
8 x SATA 6.0 Gb/s connectors (2 from SATA Express)
1 x CPU Fan connector (4-pin) for both 3-pin (DC mode) and 4-pin
(PWM mode) CPU coolers control with auto detection support
1 x CPU_OPT Fan connector (4-pin)
1 x W_Pump connector (4-pin)
1 x High AMP Fan connector (4-pin)
2 x Chassis Fan connectors (4-pin) for both 3-pin (DC Mode) and
4-pin (PWM Mode) fans control
1 x Front panel audio connector (AAFP)
X99-A II specications summary
(continued on the next page)
xiv
Internal I/O Connectors
1 x S/PDIF Out header
1 x Thunderbolt header (5-pin) for ASUS ThunderboltEX series
support
1 x TPM connector
1 x Serial port (COM) header
1 x RGB header
1 x 24-pin EATX Power connector
1 x 8-pin EATX 12V Power connector
1 x 4-pin EATX 12V Power connector
1 x System Panel (Q-Connector)
1 x 5-pin EXT_FAN (Extension Fan) connector
1 x 3-pin CHASSIS (Chassis intrusion) connector
1 x 2-pin Thermal sensor header
1 x 3-pin CPU OverVoltage (OV) header
1 x MemOK! button
1 x Clear CMOS jumper
1 x DRCT (Direct Key) connector
1 x EZ XMP switch
1 x Power-on button
1 x Reset button
BIOS Features
128 Mb Flash ROM, UEFI AMI BIOS, PnP, WfM2.0, SM BIOS 3.0,
ACPI 5.0, Multi-language BIOS, ASUS EZ Flash 3, CrashFree BIOS
3, F11 EZ Tuning Wizard, F6 Qfan Control, F3 My Favorites, Quick
Note, Last Modied log, F12 PrintScreen and ASUS DRAM SPD
(Serial Presence Detect) memory information
Manageability WfM 2.0, WOL by PME, PXE
Support DVD
Drivers
ASUS Utilities
EZ Update
Anti-virus software (OEM version)
Operating System
Windows® 10*
Windows® 8.1 / Windows® 8
Windows® 7
*64-bit only
Form Factors ATX Form Factor, 12 in. x 9.6 in. (30.5 cm x 24.4 cm)
X99-A II specications summary
Specications are subject to change without notice.
xv
• If any of the above items is damaged or missing, contact your retailer.
• The illustrated items above are for reference only. Actual product specications may
vary with different models.
Package contents
Check your motherboard package for the following items
ASUS X99-A II motherboard
1 x User Manual
1 x Support DVD
4 x Serial ATA 6 Gb/s cables
1 x ASUS Q-Shield
User Manual
1 x ASUS Q-Connector
1 x ASUS SLI™ bridge connector
1 x RGB LED extension cable 1 x CPU installation tool
1 x M.2 screws package
xvi
Installation tools and components
The tools and components in the table above are not included in the motherboard package.
PC chassis
Power supply unit
Intel® LGA2011-3 compatible CPU Fan Intel® LGA2011-3 CPU
DIMM
SATA hard disk drive
Graphics card
Philips (cross) screwdriver
SATA optical disc drive (optional)
1 bag of screws
ASUS X99-A II 1-1
Chapter 1
Product Introduction
1
1.1 Motherboard overview
1.1.1 Before you proceed
Take note of the following precautions before you install motherboard components or change
any motherboard settings.
• Unplugthepowercordfromthewallsocketbeforetouchinganycomponent.
• Beforehandlingcomponents,useagroundedwriststraportouchasafelygrounded
objectorametalobject,suchasthepowersupplycase,toavoiddamagingthemdue
to static electricity.
• HoldcomponentsbytheedgestoavoidtouchingtheICsonthem.
• Wheneveryouuninstallanycomponent,placeitonagroundedantistaticpadorinthe
bag that came with the component.
• Beforeyouinstallorremoveanycomponent,ensurethattheATXpowersupplyis
switched off or the power cord is detached from the power supply. Failure to do so
maycauseseveredamagetothemotherboard,peripherals,orcomponents.
Chapter 1: Product Introduction
1-2 Chapter 1: Product Introduction
Chapter 1
Refer to 1.1.9 Internal connectors and 2.3.1 Rear I/O connection for more information
about rear panel connectors and internal connectors.
1.1.2 Motherboard layout
ASUS X99-A II 1-3
Chapter 1
Layout contents
Connectors/Jumpers/Buttons and switches/Slots Page
1. DDR4DIMMslots 1-5
2. CPU,CPUoptional,extension,andchassisfanconnectors(4-pin
CPU_FAN;4-pinCPU_OPT;4-pinW_PUMP;4-pinH_AMP_FAN;5-pin
EXT_FAN,4-pinCHA_FAN1-2)
1-25
3. LGA2011-3CPUsocket 1-4
4. ATXpowerconnectors(24-pinEATXPWR;8-pinEATX12V_1;4-pin
EZTX12V_2)
1-26
5. MemOK!button 1-10
6. Intel®X99SerialATA6Gb/sconnectors(7-pinSATA6G_12,SATA6G_34,
SATA6G_56/SATAEXPRESS,SATA6G_78,SATA6G_910)
1-21
7. USB3.0connectors(20-1pinUSB3_12,USB3_34) 1-23
8. CPUOverVoltagejumper(3-pinCPU_OV) 1-13
9. U.2connector(U.2) 1-33
10. EZXMPswitch 1-11
11. Thunderboltheader(5-pinTB_HEADER) 1-29
12. ClearRTCRAMjumper(2-pinCLRTC) 1-12
13. Systempanelconnector(20-8pinPANEL) 1-27
14. DirectKeyconnector(2-pinDRCT) 1-28
15. USB2.0connectors(10-1pinUSB1112;USB1314) 1-24
16. T_Sensorconnector(2-pinT_SENSOR1) 1-29
17. M.2socket3 1-22
18. TPMconnector(14-1pinTPM) 1-28
19. Q-CodeLEDs 1-15
20. Resetbutton 1-9
21. Power-onbutton 1-9
22. AuraStripHeaders(4-pinRGB_HEADER) 1-32
23. Serialportconnector(10-1pinCOM) 1-30
24. Frontpanelaudioconnector(10-1pinAAFP) 1-31
25. Digitalaudioconnector(4-1pinSPDIF_OUT) 1-22
1-4 Chapter 1: Product Introduction
Chapter 1
1.1.3 Central Processing Unit (CPU)
ThemotherboardcomeswithasurfacemountLGA2011-3socketdesignedforIntel®Core™
i7processors.
• EnsurethatallpowercablesareunpluggedbeforeinstallingtheCPU.
• Uponpurchaseofthemotherboard,ensurethatthePnPcapisonthesocketand
thesocketcontactsarenotbent.ContactyourretailerimmediatelyifthePnPcap
ismissing,orifyouseeanydamagetothePnPcap/socketcontacts/motherboard
components.ASUSwillshoulderthecostofrepaironlyifthedamageisshipment/
transit-related.
• Keepthecapafterinstallingthemotherboard.ASUSwillprocessReturnMerchandise
Authorization(RMA)requestsonlyifthemotherboardcomeswiththecaponthe
LGA2011-3socket.
• Theproductwarrantydoesnotcoverdamagetothesocketcontactsresultingfrom
incorrectCPUinstallation/removal,ormisplacement/loss/incorrectremovalofthePnP
cap.
ASUS X99-A II 1-5
Chapter 1
Recommended memory congurations
1.1.4 System memory
Themotherboardcomeswitheight(8)DDR4(DoubleDataRate4)QuadInlineMemory
Modules(DIMM)slots.
ADDR4moduleisnotcheddifferentlyfromaDDR,DDR2,orDDR3module.DONOT
installaDDR,DDR2,orDDR3memorymoduletotheDDR4slot.
1-6 Chapter 1: Product Introduction
Chapter 1
• YoumayinstallvaryingmemorysizesinChannelA,ChannelB,ChannelC,and
ChannelD.Thesystemmapsthetotalsizeofthelower-sizedchannelforthedual-
channelconguration.Anyexcessmemoryfromthehigher-sizedchannelisthen
mapped for single-channel operation.
• AccordingtoIntel®CPUspec,DIMMvoltagebelow1.65Visrecommendedtoprotect
theCPU.
• Duetothememoryaddresslimitationon32-bitWindows®OS,whenyouinstall4GB
ormorememoryonthemotherboard,theactualusablememoryfortheOScanbe
about3GBorless.Foreffectiveuseofmemory,werecommendthatyoudoanyofthe
following:
a) Useamaximumof3GBsystemmemoryifyouareusinga32-bitWindows®OS.
b) Installa64-bitWindows®OSwhenyouwanttoinstall4GBormoreonthe
motherboard.
c) Formoredetails,refertotheMicrosoft® support site at http://support.microsoft.
com/kb/929605/en-us.
• ThedefaultmemoryoperationfrequencyisdependentonitsSerialPresenceDetect
(SPD),whichisthestandardwayofaccessinginformationfromamemorymodule.
Underthedefaultstate,somememorymodulesforoverclockingmayoperateata
lowerfrequencythanthevendor-markedvalue.Tooperateatthevendor-marked
oratahigherfrequency,refertosection3.5 Ai Tweaker menu for manual memory
frequencyadjustment.
• Forsystemstability,useamoreefcientmemorycoolingsystemtosupportafull
memoryload(8DIMMs)oroverclockingcondition.
• AlwaysinstalltheDIMMSwiththesameCASLatency.Foranoptimumcompatibility,
werecommendthatyouinstallmemorymodulesofthesameversionordatacode
(D/C)fromthesamevendor.Checkwiththevendortogetthecorrectmemory
modules.
• ThedesignoftheDIMMfanmayvary.EnsurethattheDIMMfantstothe
motherboard.
Memory congurations
Youmayinstall2GB,4GBand8GBunbufferedandnon-ECCDDR4DIMMsintotheDIMM
sockets.
ASUS X99-A II 1-7
Chapter 1
1.1.5 Expansion slots
Unplugthepowercordbeforeaddingorremovingexpansioncards.Failuretodosomay
cause you physical injury and damage motherboard components.
Slot No. Slot Description
40-LANE 28-LANE
1PCIe3.0/2.0x16_1slot PCIe3.0/2.0x16_1slot
2PCIe2.0x1_1slot PCIe2.0x1_1slot
3PCIe2.0x16_2slot PCIe2.0x16_2slot
4PCIe3.0/2.0x16_3slot PCIe3.0/2.0x16_3slot
5PCIe2.0x1_2slot PCIe2.0x1_2slot
6PCIe3.0/2.0x16_4slot PCIe3.0/2.0x16_4slot
1-8 Chapter 1: Product Introduction
Chapter 1
• WerecommendthatyouprovidesufcientpowerwhenrunningCrossFireX™orSLI™
mode.
• ConnectachassisfantothemotherboardconnectorlabeledCHA_FAN1-2when
usingmultiplegraphicscardsforbetterthermalenvironment.
40-LANE CPU PCI Express 3.0 operating mode
VGA
conguration PCIe 3.0/2.0 x16_1 PCIe 3.0/2.0 x16_3 PCIe 3.0/2.0 x16_4
SingleVGA/
PCIecard
x16(singleVGA
recommended) N/A N/A
DualVGA/PCIe
cards x16 x16 N/A
TripleVGA/
PCIecards x8 x16 x8
28-LANE CPU PCI Express 3.0 operating mode
VGA conguration PCIe 3.0/2.0 x16_1 PCIe 3.0/2.0 x16_3 PCIe 3.0/2.0 x16_4
SingleVGA/PCIecard x16(singleVGA
recommended) N/A N/A
DualVGA/PCIecards x16 x8 N/A
TripleVGA/PCIecards x8 x8 x8
ASUS X99-A II 1-9
Chapter 1
1.1.6 Onboard buttons and switches
Onboardbuttonsandswitchesallowyoutone-tuneperformancewhenworkingonabareor
open-casesystem.Thisisidealforoverclockersandgamerswhocontinuallychangesettings
to enhance system performance.
1. Power-on button
The motherboard comes with a power-on button that allows you to power up or wake
up the system. The button also lights up when the system is plugged to a power source
indicating that you should shut down the system and unplug the power cable before
removingorinstallinganymotherboardcomponent.
2. Reset button
Presstheresetbuttontorebootthesystem.
1-10 Chapter 1: Product Introduction
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3. MemOK! button
InstallingDIMMsthatarenotcompatiblewiththemotherboardmaycausesystemboot
failure.IfthesystemfailtobootduringPOSTstageandtheDRAM_LEDneartheMemOK!
buttonlightscontinuously,presstheMemOK!buttonuntiltheDRAM_LEDstartsblinking.
Systemwillbeginautomaticmemorycompatibilitytuningandrebootforsuccessfulboot.
• Refertosection1.1.8 Onboard LEDsfortheexactlocationoftheDIAG_DRAMLED.
• TheDIAG_DRAMLEDalsolightsupwhentheDIMMisnotproperlyinstalled.Turnoff
thesystemandreinstalltheDIMMbeforeusingtheMemOK!function.
• TheMemOK!buttondoesnotfunctionunderWindows®OSenvironment.
• Duringthetuningprocess,thesystemloadsandtestsfailsafememorysettings.It
takesabout30secondsforthesystemtotestonesetoffailsafesettings.Ifthetest
fails,thesystemrebootsandteststhenextsetoffailsafesettings.Theblinkingspeed
oftheDIAG_DRAMLEDincreases,indicatingdifferenttestprocesses.
• Duetomemorytuningrequirement,thesystemautomaticallyrebootswheneach
timingsetistested.IftheinstalledDIMMsstillfailtobootafterthewholetuning
process,theDIAG_DRAMLEDlightscontinuously.ReplacetheDIMMswithones
recommendedintheMemoryQVL(QualiedVendorsLists)inthisusermanualorat
www.asus.com.
• IfyouturnoffthecomputerandreplaceDIMMsduringthetuningprocess,thesystem
continuesmemorytuningafterturningonthecomputer.Tostopmemorytuning,turn
offthecomputerandunplugthepowercordforabout5–10seconds.
• IfyoursystemfailstobootupduetoBIOSoverclocking,presstheMemOK!button
tobootandloadtheBIOSdefaultsettings.AmessagewillappearduringPOST
remindingyouthattheBIOShasbeenrestoredtoitsdefaultsettings.
• WerecommendthatyoudownloadandupdatetothelatestBIOSversionfrom
www.asus.comafterusingtheMemOK!function.
ASUS X99-A II 1-11
Chapter 1
4. EZ XMP switch
EnablethisswitchtooverclocktheinstalledDIMMs,allowingyoutoenhancethe
DIMM’sspeedandperformance.
TheEZXMPLED(XLED1)lightsupwhenyouenabletheEZXMPswitch.For
thelocationoftheEZXMPLED,refertosection1.1.8 Onboard LEDs.
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Chapter 1
1.1.7 Jumpers
1. Clear RTC RAM jumper (2-pin CLRTC)
ThisjumperallowsyoutocleartheRealTimeClock(RTC)RAMinCMOS.Youcan
cleartheCMOSmemoryofdate,time,andsystemsetupparametersbyerasingthe
CMOSRTCRAMdata.TheonboardbuttoncellbatterypowerstheRAMdatain
CMOS,whichincludesystemsetupinformationsuchassystempasswords.
ToerasetheRTCRAM:
1. TurnOFFthecomputerandunplugthepowercord.
2. Short-circuitpin1-2withametalobjectorjumpercapforabout5-10seconds.
3. PlugthepowercordandturnONthecomputer.
4. Holddownthe<Delete>keyduringthebootprocessandenterBIOSsetuptore-enter
data.
ExceptwhenclearingtheRTCRAM,neverremovethecaponCLRTCjumperdefault
position.Removingthecapwillcausesystembootfailure!
• Ifthestepsabovedonothelp,removetheonboardbatteryandmovethejumper
againtocleartheCMOSRTCRAMdata.AftertheCMOSclearance,reinstallthe
battery.
• YoudonotneedtocleartheRTCwhenthesystemhangsduetooverclocking.For
systemfailureduetooverclocking,usetheC.P.R.(CPUParameterRecall)feature.
ShutdownandrebootthesystemsotheBIOScanautomaticallyresetparameter
settingstodefaultvalues.
• Duetothechipsetbehavior,ACpoweroffisrequiredtoenableC.P.R.function.You
must turn off and on the power supply or unplug and plug the power cord before
rebooting the system.
ASUS X99-A II 1-13
Chapter 1
2. CPU Over Voltage jumper (3-pin CPU_OV)
TheCPUOverVoltagejumperallowsyoutosetahigherCPUvoltageforaexible
overclockingsystem,dependingonthetypeoftheinstalledCPU.TogainmoreCPU
voltagesetting,insertthejumpertopins2-3.TogobacktoitsdefaultCPUvoltage
setting,insertthejumpertopins1-2.
1-14 Chapter 1: Product Introduction
Chapter 1
1.1.8 Onboard LEDs
1. POST State LEDs
ThePOSTStateLEDsprovidethestatusofthesekeycomponentsduringPOST
(Power-OnSelf-Test):CPU,memorymodules,VGAcard,andharddiskdrives.Ifan
errorisfound,thecriticalcomponent’sLEDstayslitupuntiltheproblemissolved.
2. EZ XMP LED (XLED1)
ThisLEDlightsupwhenyouenabletheEZXMPswitch.
ASUS X99-A II 1-15
Chapter 1
4. Q-Code LEDs
TheQ-CodeLEDdesignprovidesyouwitha2-digiterrorcodethatdisplaysthesystem
status.RefertotheQ-Codetableonthenextpagefordetails.
3. Standby Power LED (PWR_LED)
The motherboard comes with a standby power LED that lights up to indicate that the
systemisON,insleepmode,orinsoft-offmode.Thisisareminderthatyoushould
shutdownthesystemandunplugthepowercablebeforeremovingorpluggingany
motherboard components. The illustration below shows the location of the onboard
LED.
1-16 Chapter 1: Product Introduction
Chapter 1
Q-Code table
(continuedonthenextpage)
Code Description
00 Notused
01 Poweron.Resettypedetection(soft/hard).
02 APinitializationbeforemicrocodeloading
03 SystemAgentinitializationbeforemicrocodeloading
04 PCHinitializationbeforemicrocodeloading
06 Microcodeloading
07 APinitializationaftermicrocodeloading
08 SystemAgentinitializationaftermicrocodeloading
09 PCHinitializationaftermicrocodeloading
0B Cacheinitialization
0C – 0D ReservedforfutureAMISECerrorcodes
0E Microcodenotfound
0F Microcodenotloaded
10 PEICoreisstarted
11 – 14 Pre-memoryCPUinitializationisstarted
15 – 18 Pre-memorySystemAgentinitializationisstarted
19 – 1C Pre-memoryPCHinitializationisstarted
2B – 2F Memoryinitialization
30 ReservedforASL(seeASLStatusCodessectionbelow)
31 MemoryInstalled
32 – 36 CPUpost-memoryinitialization
37 – 3A Post-MemorySystemAgentinitializationisstarted
3B – 3E Post-MemoryPCHinitializationisstarted
4F DXEIPLisstarted
50 – 53 Memoryinitializationerror.Invalidmemorytypeorincompatiblememory
speed
54 Unspeciedmemoryinitializationerror
55 Memorynotinstalled
56 InvalidCPUtypeorSpeed
57 CPUmismatch
58 CPUselftestfailedorpossibleCPUcacheerror
59 CPUmicro-codeisnotfoundormicro-codeupdateisfailed
ASUS X99-A II 1-17
Chapter 1
Q-Code table
(continuedonthenextpage)
Code Description
5A InternalCPUerror
5B ResetPPIisnotavailable
5C – 5F ReservedforfutureAMIerrorcodes
E0 S3Resumeisstared(S3ResumePPIiscalledbytheDXEIPL)
E1 S3BootScriptexecution
E2 Videorepost
E3 OSS3wakevectorcall
E4 – E7 ReservedforfutureAMIprogresscodes
E8 S3ResumeFailed
E9 S3ResumePPInotFound
EA S3ResumeBootScriptError
EB S3OSWakeError
EC – EF ReservedforfutureAMIerrorcodes
F0 Recoveryconditiontriggeredbyrmware(Autorecovery)
F1 Recoveryconditiontriggeredbyuser(Forcedrecovery)
F2 Recoveryprocessstarted
F3 Recoveryrmwareimageisfound
F4 Recoveryrmwareimageisloaded
F5 – F7 ReservedforfutureAMIprogresscodes
F8 RecoveryPPIisnotavailable
F9 Recoverycapsuleisnotfound
FA Invalidrecoverycapsule
FB – FF ReservedforfutureAMIerrorcodes
60 DXECoreisstarted
61 NVRAMinitialization
62 InstallationofthePCHRuntimeServices
63 – 67 CPUDXEinitializationisstarted
68 PCIhostbridgeinitialization
69 SystemAgentDXEinitializationisstarted
6A SystemAgentDXESMMinitializationisstarted
6B – 6F SystemAgentDXEinitialization(SystemAgentmodulespecic)
1-18 Chapter 1: Product Introduction
Chapter 1
Code Description
70 PCHDXEinitializationisstarted
71 PCHDXESMMinitializationisstarted
72 PCHdevicesinitialization
73 – 77 PCHDXEInitialization(PCHmodulespecic)
78 ACPImoduleinitialization
79 CSMinitialization
7A – 7F ReservedforfutureAMIDXEcodes
90 BootDeviceSelection(BDS)phaseisstarted
91 Driverconnectingisstarted
92 PCIBusinitializationisstarted
93 PCIBusHotPlugControllerInitialization
94 PCIBusEnumeration
95 PCIBusRequestResources
96 PCIBusAssignResources
97 ConsoleOutputdevicesconnect
98 Consoleinputdevicesconnect
99 SuperIOInitialization
9A USBinitializationisstarted
9B USBReset
9C USBDetect
9D USBEnable
9E – 9F ReservedforfutureAMIcodes
A0 IDEinitializationisstarted
A1 IDEReset
A2 IDEDetect
A3 IDEEnable
A4 SCSIinitializationisstarted
A5 SCSIReset
A6 SCSIDetect
A7 SCSIEnable
A8 SetupVerifyingPassword
(continuedonthenextpage)
Q-Code table
ASUS X99-A II 1-19
Chapter 1
Code Description
A9 StartofSetup
AA ReservedforASL(seeASLStatusCodessectionbelow)
AB SetupInputWait
AC ReservedforASL(seeASLStatusCodessectionbelow)
AD ReadyToBootevent
AE LegacyBootevent
AF ExitBootServicesevent
B0 RuntimeSetVirtualAddressMAPBegin
B1 RuntimeSetVirtualAddressMAPEnd
B2 LegacyOptionROMInitialization
B3 SystemReset
B4 USBhotplug
B5 PCIbushotplug
B6 Clean-upofNVRAM
B7 CongurationReset(resetofNVRAMsettings)
B8– BF ReservedforfutureAMIcodes
D0 CPUinitializationerror
D1 SystemAgentinitializationerror
D2 PCHinitializationerror
D3 SomeoftheArchitecturalProtocolsarenotavailable
D4 PCIresourceallocationerror.OutofResources
D5 NoSpaceforLegacyOptionROM
D6 NoConsoleOutputDevicesarefound
D7 NoConsoleInputDevicesarefound
D8 Invalidpassword
D9 ErrorloadingBootOption(LoadImagereturnederror)
DA BootOptionisfailed(StartImagereturnederror)
DB Flash update is failed
DC Resetprotocolisnotavailable
Q-Code table
1-20 Chapter 1: Product Introduction
Chapter 1
ACPI/ASL Checkpoints
Code Description
0x01 SystemisenteringS1sleepstate
0x02 SystemisenteringS2sleepstate
0x03 SystemisenteringS3sleepstate
0x04 SystemisenteringS4sleepstate
0x05 SystemisenteringS5sleepstate
0x10 SystemiswakingupfromtheS1sleepstate
0x20 SystemiswakingupfromtheS2sleepstate
0x30 SystemiswakingupfromtheS3sleepstate
0x40 SystemiswakingupfromtheS4sleepstate
0xAC SystemhastransitionedintoACPImode.InterruptcontrollerisinPICmode.
0xAA SystemhastransitionedintoACPImode.InterruptcontrollerisinAPICmode.
ASUS X99-A II 1-21
Chapter 1
1.1.9 Internal connectors
1. Intel® X99 Serial ATA 6 Gb/s connectors (7-pin SATA6G_12, SATA6G_34,
SATA6G_56/SATAEXPRESS, SATA6G_78, SATA6G_910)
TheseconnectorsconnecttoSerialATA6Gb/sharddiskdrivesviaSerialATA6Gb/s
signal cables.
IfyouinstalledSerialATAharddiskdrives,youcancreateaRAID0,1,5,and10
congurationwiththeIntel®RapidStorageTechnologythroughtheonboardIntel®X99
chipset.
• Theseconnectorsaresetto[AHCI Mode]bydefault.IfyouintendtocreateaSerial
ATARAIDsetusingtheseconnectors,settheSATAModeitemintheBIOSto[RAID
Mode]. Refer to section 3.6.3 PCH Storage Conguration for details.
• BeforecreatingaRAIDset,refertothemanualbundledinthemotherboardsupport
DVD.
• TheSATAEXPRESS_1connectorcansupportoneSATAExpressdeviceortwo
SATAdevices.
• Duetochipsetbehavior,theSATA6G_78andSATA6G_910ports(black)donot
supportIntel®RapidStorageTechnologyandRAIDconguration.
1-22 Chapter 1: Product Introduction
Chapter 1
2. Digital audio connector (4-1 pin SPDIF_OUT)
ThisconnectorisforanadditionalSony/PhilipsDigitalInterface(S/PDIF)port.Connect
theS/PDIFOutmodulecabletothisconnector,theninstallthemoduletoaslot
opening at the back of the system chassis.
TheS/PDIFmoduleispurchasedseparately.
3. M.2 socket 3
This socket allows you to install an M.2(NGFF)SSDmodule.
ThissocketsupportsMKeyandtype2242/2260/2280/22110storagedevices.
ASUS X99-A II 1-23
Chapter 1
4. USB 3.0 connectors (20-1 pin USB3_12, USB3_34)
TheseconnectorsallowyoutoconnectaUSB3.0moduleforadditionalUSB3.0front
orrearpanelports.WithaninstalledUSB3.0module,youcanenjoyallthebenetsof
USB3.0includingfasterdatatransferspeedsofupto5Gb/s,fasterchargingtimefor
USB-chargeabledevices,optimizedpowerefciency,andbackwardcompatibilitywith
USB2.0.
TheUSB3.0moduleispurchasedseparately.
• EnsuretoinstalltherelateddrivertofullyusetheUSB3.0portsunderWindows®7.
• ThepluggedUSB3.0devicemayrunonxHCIorEHCImodedependingonthe
operatingsystem’ssetting.
• TheseUSB3.0portssupportnativeUASPtransferstandardinWindows®8/
Windows®8.1andTurboModewhenusingUSB3.0Boostfeature.
1-24 Chapter 1: Product Introduction
Chapter 1
DONOTconnecta1394cabletotheUSBconnectors.Doingsowilldamagethe
motherboard!
YoucanconnectthefrontpanelUSBcabletotheASUSQ-Connector(USB)rst,andthen
installtheQ-Connector(USB)totheUSBconnectoronboardifyourchassissupportsfront
panelUSBports.
TheUSB2.0moduleispurchasedseparately.
5. USB 2.0 connectors (10-1 pin USB1112; USB1314)
TheseconnectorsareforUSB2.0ports.ConnecttheUSBmodulecabletoanyof
theseconnectors,theninstallthemoduletoaslotopeningatthebackofthesystem
chassis.TheseUSBconnectorscomplywithUSB2.0specicationthatsupportsupto
480Mb/sconnectionspeed.
ASUS X99-A II 1-25
Chapter 1
• TheCPU_FANconnectorsupportstheCPUfanofmaximum1A(12W)fanpower.
• TheCPU_FAN,CHA_FAN,andEXT_FANconnectorssupporttheASUSFANXpert3
featureonX99platform.
• W_PUMPfunctionsupportdependsonwatercoolingdevice.Whenusingawater
coolingdevice,connectthedevice’sfanconnector(s)tothemotherboard’sCPU_FAN
connector,andthewaterpumpconnectortotheW_PUMPconnector.
• TheEXT_FANconnectorsupports3of10thermalsensorsources.
• Allfanconnectorsdetectthetypeoffaninstalledandautomaticallyswitchesthe
controlmodes.Tocongurethefan’scontrolmode,gotoAdvanced Mode > Monitor
> CPU Q-Fan ControliteminBIOS.
• ForbetterQ-Fanfunctions,werecommendusing4-pinPWMfanswhenyouconnect
powerfulfans(1Aorabove)ontotheH_AMP_FANconnector.
• ThechassisfanconnectorssupportDCandPWMmodes.TosetthesefanstoDCor
PWM,gotoAdvanced Mode > Monitor > Chassis Fan 1/2 Q-Fan Control items in
BIOS.
TheFANEXTENSIONCARDispurchasedseparately.
• DONOTforgettoconnectthefancablestothefanconnectors.Insufcientairow
insidethesystemmaydamagethemotherboardcomponents.Thesearenotjumpers!
Donotplacejumpercapsonthefanconnectors!
• EnsurethattheCPUfancableissecurelyinstalledtotheCPUfanconnector.
6. CPU, CPU optional, extension, and chassis fan connectors (4-pin CPU_FAN;
4-pin CPU_OPT; 4-pin W_PUMP; 4-pin H_AMP_FAN; 5-pin EXT_FAN, 4-pin CHA_
FAN1-2)
Connectthefancablestothefanconnectorsonthemotherboard,ensuringthatthe
black wire of each cable matches the ground pin of the connector.
1-26 Chapter 1: Product Introduction
Chapter 1
• Forafullyconguredsystem,werecommendthatyouuseapowersupplyunit
(PSU)thatcomplieswithATX12VSpecication2.0(orlaterversion)andprovidesa
minimumpowerof350W.
• WerecommendthatyouuseaPSUwithahigherpoweroutputwhenconguringa
systemwithmorepower-consumingdevices.Thesystemmaybecomeunstableor
maynotbootupifthepowerisinadequate.
• Ifyouwanttousetwoormorehigh-endPCIExpressx16cards,useaPSUwith
1000Wpowerorabovetoensurethesystemstability.
7. ATX power connectors (24-pin EATXPWR; 8-pin EATX12V_1; 4-pin EZTX12V_2)
TheseconnectorsareforATXpowersupplyplugs.Thepowersupplyplugsare
designedtottheseconnectorsinonlyoneorientation.Findtheproperorientationand
pushdownrmlyuntiltheconnectorscompletelyt.
DONOTforgettoconnectBOTHofthe4-pinand8-pinEATX12Vpowerplug.
ASUS X99-A II 1-27
Chapter 1
• System power LED (4-pin PLED)
This2-pinconnectorisforthesystempowerLED.ConnectthechassispowerLED
cable to this connector. The system power LED lights up when you turn on the system
power,andblinkswhenthesystemisinsleepmode.
• Hard disk drive activity LED (2-pin HDD_LED)
This2-pinconnectorisfortheHDDActivityLED.ConnecttheHDDActivityLEDcable
tothisconnector.TheHDDLEDlightsuporasheswhendataisreadfromorwritten
totheHDD.
• System warning speaker (4-pin SPEAKER)
This 4-pin connector is for the chassis-mounted system warning speaker. The speaker
allows you to hear system beeps and warnings.
• ATX power button/soft-off button (2-pin PWRSW)
Thisconnectorisforthesystempowerbutton.Pressingthepowerbuttonturnsthe
system on or puts the system in sleep or soft-off mode depending on the operating
systemsettings.Pressingthepowerswitchformorethanfoursecondswhilethe
systemisONturnsthesystemOFF.
• Reset button (2-pin RESET)
This 2-pin connector is for the chassis-mounted reset button for system reboot without
turning off the system power.
• Chassis intrusion connector (2-pin CHASSIS)
Thisconnectorisforachassis-mountedintrusiondetectionsensororswitch.Connect
one end of the chassis intrusion sensor or switch cable to this connector. The chassis
intrusionsensororswitchsendsahigh-levelsignaltothisconnectorwhenachassis
componentisremovedorreplaced.Thesignalisthengeneratedasachassisintrusion
event.
8. System panel connector (20-3 pin PANEL)
Thisconnectorsupportsseveralchassis-mountedfunctions.
1-28 Chapter 1: Product Introduction
Chapter 1
9. TPM connector (14-1 pin TPM)
ThisconnectorsupportsaTrustedPlatformModule(TPM)system,whichsecurely
storeskeys,digitalcerticates,passwordsanddata.ATPMsystemalsohelps
enhancenetworksecurity,protectdigitalidentities,andensuresplatformintegrity.
10. DirectKey connector (2-pin DRCT)
Thisconnectorisforthechassis-mountedbuttonthatsupportstheDirectKeyfunction.
ConnectthebuttoncablethatsupportsDirectKey,fromthechassistothisconnectoron
the motherboard.
EnsurethatyourchassiscomeswiththeextrabuttoncablethatsupportstheDirectKey
feature. Refer to the technical documentation that came with the chassis for details.
TheTPMmoduleispurchasedseparately.
ASUS X99-A II 1-29
Chapter 1
11. Thunderbolt header (5-pin TB_HEADER)
Thisconnectorisfortheadd-onThunderboltI/OcardthatsupportsIntel’sThunderbolt
Technology,allowingyoutoconnectuptosixThunderbolt-enableddevicesanda
DisplayPort-enableddisplayinadaisy-chainconguration.
Theadd-onThunderboltI/OcardandThunderboltcablesarepurchasedseparately.
12. T_Sensor connector (2-pin T_SENSOR1)
This connector is for the thermistor cable that allows you to monitor the temperature of
yourmotherboard’scriticalcomponentsandconnecteddevices.
The thermistor cable is purchased separately.
1-30 Chapter 1: Product Introduction
Chapter 1
13. Chassis intrusion connector (4-1 pin CHASSIS)
Thisconnectorisforachassis-mountedintrusiondetectionsensororswitch.Connect
one end of the chassis intrusion sensor or switch cable to this connector. The chassis
intrusionsensororswitchsendsahigh-levelsignaltothisconnectorwhenachassis
componentisremovedorreplaced.Thesignalisthengeneratedasachassisintrusion
event.
Bydefault,thepinlabeled“ChassisSignal”and“Ground”areshortedwithajumper
cap.RemovethejumpercapsandenabletherelatedoptionsinBIOSifyouintendto
use the chassis intrusion detection feature.
Amessageappearswhenyouconnectthesensororswitchatthersttimeorwhenyou
reconnectthesensororswitchtothisconnector.Resetthesystemtoexitthemessage.
14. Serial port connector (10-1 pin COM)
Theseconnectorsarefortheserial(COM)port.Connecttheserialportmodulecable
tooneoftheseconnectors,theninstallthemoduletoaslotopeningatthebackofthe
system chassis.
ASUS X99-A II 1-31
Chapter 1
15. Front panel audio connector (10-1 pin AAFP)
Thisconnectorisforachassis-mountedfrontpanelaudioI/Omodulethatsupports
eitherHDAudioorlegacyAC’97audiostandard.Connectoneendofthefrontpanel
audioI/Omodulecabletothisconnector.
• Werecommendthatyouconnectahigh-denitionfrontpanelaudiomoduletothis
connectortoavailofthemotherboard’shigh-denitionaudiocapability.
• Ifyouwanttoconnectahigh-denitionoranAC’97frontpanelaudiomoduletothis
connector,settheFrontPanelTypeitemintheBIOSsetupto[HD] or [AC97].
1-32 Chapter 1: Product Introduction
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16. Aura Strip Headers (4-pin RGB_HEADER)
ThisconnectorisforRGBLEDstrips.
TheRGBheadersupports5050RGBmulti-colorLEDstrips(12V/G/R/B),withamaximum
powerratingof2A(12V),andnolongerthan2meters.
Beforeyouinstallorremoveanycomponent,ensurethattheATXpowersupplyisswitched
offorthepowercordisdetachedfromthepowersupply.Failuretodosomaycausesevere
damagetothemotherboard,peripherals,orcomponents.
• ActuallightingandcolorwillvarywithLEDstrip.
• IfyourLEDstripdoesnotlightup,checkiftheRGBLEDextensioncableandthe
RGBLEDstripisconnectedinthecorrectorientation,andthe12Vconnectoris
alignedwiththe12Vheaderonthemotherboard.MakesureyourLEDstripepinsare
intheexactorder(12V/G/R/B),formoredetails,pleasecontactyourproductvendor.
ASUS X99-A II 1-33
Chapter 1
17. U.2 connector (U.2)
ThismotherboardcomeswithaU.2connectorwhichsupportsPCIe3.0x4NVM
Expressstorage.
NVMExpressdevicescurrentlydonotsupportBIOSS.M.A.R.T.information.
1-34 Chapter 1: Product Introduction
Chapter 1
ASUS X99-A II 2-1
Chapter 2
Basic Installation
2
2.1 Building your PC system
2.1.1 Motherboard installation
The diagrams in this section are for reference only. The motherboard layout may vary with
models, but the installation steps are the same for all models.
1. Install the ASUS Q-Shield to the chassis rear I/O panel.
Chapter 2: Basic installation
2. Place the motherboard into the chassis, ensuring that its rear I/O ports are aligned to
the chassis’ rear I/O panel.
2-2 Chapter 2: Basic Installation
Chapter 2
3. Place nine (9) screws into the holes indicated by circles to secure the motherboard to
the chassis.
DO NOT overtighten the screws! Doing so can damage the motherboard.
ASUS X99-A II 2-3
Chapter 2
2.1.2 CPU installation
Installing CPU
• Please note the order in opening/ closing the double latch. Follow the instructions
printed on the metal sealing hatch or the illustrations shown below in this manual. The
plastic cap will pop up automatically once the CPU is in place and the hatch properly
sealed down.
• Theillustrationsareforreferenceonly.
• TheCPUInstallationToolisonlycompatibleonASUSmotherboardswithanIntel®
LGA2011-3 socket.
• EnsurethattheCPUisrmlyclickedintoplacebeforeinstallingitintotheCPUsocket
or socket slot.
• UsetheCPUInstallationToolforinstallingtheCPUonly.DONOTdamageorbend
the CPU Installation Tool.
• AlwaysrmlyholdbothsidesoftheCPUInstallationToolwheninstalling,removing,or
picking up the CPU Installation Tool.
• EnsuretouseasoftstablesurfacewheninstallingtheCPUtotheCPUInstallation
Tool to prevent CPU damage.
• ASUSwillnotcoverdamagesresultingfromincorrectCPUinstallation/removal,
incorrect CPU orientation/placement, or other damages resulting from negligence by
the user.
2-4 Chapter 2: Basic Installation
Chapter 2
Bottom of CPU CPU Installation Tool
Socket slot
Bottom of CPU
Antistatic sheet
Align pin
Align pin
ASUS X99-A II 2-5
Chapter 2
PnP cap
Handle
Removing CPU
2-6 Chapter 2: Basic Installation
Chapter 2
To install the CPU heatsink and fan assembly
2.1.3 CPU heatsink and fan assembly installation
Apply the Thermal Interface Material to the
CPU heatsink and CPU before you install
the heatsink and fan, if necessary.
ASUS X99-A II 2-7
Chapter 2
To remove a DIMM
2.1.4 DIMM installation
2-8 Chapter 2: Basic Installation
Chapter 2
2.1.5 ATX Power connection
AND
ASUS X99-A II 2-9
Chapter 2
2.1.6 SATA device connection
OR
OR
2-10 Chapter 2: Basic Installation
Chapter 2
2.1.7 Front I/O Connector
To install ASUS Q-Connector
USB 2.0
AAFP
To install USB 2.0 connector To install front panel audio connector
USB 3.0
To install USB 3.0 connector
HDD LED
POWER SW
RESET SW
HDD LED-
HDD LED+
PWR
Reset
Ground
Ground
HDD LED
ASUS X99-A II 2-11
Chapter 2
2.1.8 Expansion Card installation
To install PCIe x16 cards
To install PCIe x1 cards
2-12 Chapter 2: Basic Installation
Chapter 2
2.2 BIOS update utility
USB BIOS Flashback
USB BIOS Flashback allows you to easily update the BIOS without entering the existing
BIOS or operating system. Simply insert a USB storage device to the USB port (the USB port
hole marked in green on the I/O shield) then press the USB BIOS Flashback button for three
seconds to automatically update the BIOS.
To use USB BIOS Flashback:
1. Place the bundled support DVD to the optical drive and install the USB BIOS
Flashback Wizard. Follow the onscreen instructions to complete the installation.
2. Insert the USB storage device to the USB Flashback port.
• WerecommendyoutouseaUSB2.0storagedevicetosavethelatestBIOSversion
for better compatibility and stability.
• Refertosection2.3.1 Rear I/O connection for the location of the USB port that
supports USB BIOS Flashback.
3. Launch the USB BIOS Flashback Wizard to automatically download the latest BIOS
version.
4. Shut down your computer.
5. PresstheBIOSFlashbackbuttonforthreesecondsuntiltheFlashbackLEDbeginsto
blink, indicating that the BIOS Flashback function is enabled, then release.
• Donotunplugportabledisk,powersystem,orpresstheCLR_CMOSbuttonwhile
BIOS update is ongoing, otherwise update will be interrupted. In case of interruption,
please follow the steps again.
• Ifthelightashesforvesecondsandturnsintoasolidlight,thismeansthat
the BIOS Flashback is not operating properly. This may be caused by improper
installationoftheUSBstoragedeviceandlename/leformaterror.Ifthisscenario
happens, please restart the system to turn off the light.
• UpdatingBIOSmayhaverisks.IftheBIOSprogramisdamagedduringtheprocess
and results to the system’s failure to boot up, please contact your local ASUS Service
Center.
For more BIOS update utilities in BIOS setup, refer to the section 3.11 Updating BIOS in
Chapter 3.
USB BIOS Flashback port
BIOS Flashback button
6. WaituntiltheLEDgoesout,indicatingthattheBIOSupdatingprocessiscompleted.
ASUS X99-A II 2-13
Chapter 2
2.3 Motherboard rear and audio connections
2.3.1 Rear I/O connection
Rear panel connectors
1. USB BIOS Flashback 7. USB3.0portsE34(SupportsUSB3.0
Boost)
2. PS/2 keyboard/mouse port 8. USB3.0portsE2_5(Bottomport
supports USB BIOS Flashback)
3. Intel® LAN port 9. USB3.1portEC1
(supports USB 3.1 Boost)
4. USB3.1portEA2 10. Optical S/PDIF Out port
5. USB 2.0 ports 78 11. Audio I/O ports**
6. USB 2.0 ports 910
* and **: Refer to the tables on the next page for LAN port LEDs and audio port denitions.
2-14 Chapter 2: Basic Installation
Chapter 2
• ThepluggedUSB3.0devicemayrunonxHCImodeorEHCImode,dependingonthe
operating system’s setting.
• USB3.0devicescanonlybeusedasdatastorageonly.
• WestronglyrecommendthatyouconnectUSB3.0devicestoUSB3.0portsforfaster
and better performance for your USB 3.0 devices.
• DuetothedesignoftheIntel® X99 series chipset, all USB devices connected to the
USB2.0andUSB3.0portsarecontrolledbythexHCIcontroller.SomelegacyUSB
devicesmustupdatetheirrmwareforbettercompatibility.
* LAN ports LED indications
ACT/LINK
LED
SPEED
LED
LAN port
Activity Link LED Speed LED
Status Description Status Description
Off No link Off 10 Mbps connection
Orange Linked Orange 100 Mbps connection
Orange (Blinking) Data activity Green 1 Gbps connection
Orange (Blinking
then steady)
Readytowakeup
from S5 mode
YoucandisabletheLANcontrollersinBIOS.Duetohardwaredesign,theLANport’sLEDs
may continue to blink even when disabled.
** Audio 2.1, 4.1, 5.1 or 7.1-channel conguration
Port Headset
2.1-channel
4.1-channel 5.1-channel 7.1-channel
Light Blue Line In Line In Line In Side Speaker Out
Lime Line Out Front Speaker Out Front Speaker Out Front Speaker Out
Pink Mic In Mic In Mic In Mic In
Orange – – Center/Sub
woofer
Center/Sub
woofer
Black – RearSpeakerOut RearSpeakerOut RearSpeakerOut
ASUS X99-A II 2-15
Chapter 2
Connect to Headphone and Mic
Connect to Stereo Speakers
2.3.2 Audio I/O connections
Audio I/O ports
Connect to 2.1 channel Speakers
2-16 Chapter 2: Basic Installation
Chapter 2
Connect to 4.1 channel Speakers
Connect to 5.1 channel Speakers
ASUS X99-A II 2-17
Chapter 2
When the DTS UltraPC II function is enabled, ensure to connect the rear speaker to the
light blue port.
2.4 Starting up for the rst time
1. After making all the connections, replace the system case cover.
2. Ensurethatallswitchesareoff.
3. Connect the power cord to the power connector at the back of the system chassis.
4. Connect the power cord to a power outlet that is equipped with a surge protector.
5. Turn on the devices in the following order:
a. Monitor
b. ExternalSCSIdevices(startingwiththelastdeviceonthechain)
c. System power
6. Afterapplyingpower,thesystempowerLEDonthesystemfrontpanelcaselightsup.
ForsystemswithATXpowersupplies,thesystemLEDlightsupwhenyoupressthe
ATX power button. If your monitor complies with the “green” standards or if it has a
“powerstandby”feature,themonitorLEDmaylightuporchangefromorangetogreen
afterthesystemLEDturnson.
The system then runs the power-on self tests (POST). While the tests are running, the
BIOS beeps (refer to the BIOS beep codes table) or additional messages appear on
the screen. If you do not see anything within 30 seconds from the time you turned on
the power, the system may have failed a power-on test. Check the jumper settings and
connections or call your retailer for assistance.
Connect to 7.1 channel Speakers
2-18 Chapter 2: Basic Installation
Chapter 2
BIOS Beep Description
One short beep VGA detected
Quick boot set to disabled
No keyboard detected
One continuous beep followed by two
short beeps then a pause (repeated)
No memory detected
One continuous beep followed by three
short beeps
No VGA detected
One continuous beep followed by four
short beeps
Hardwarecomponentfailure
7. At power on, hold down the <Delete> key to enter the BIOS Setup. Follow the
instructions in Chapter 3.
2.5 Turning off the computer
While the system is ON, press the power button for less than four seconds to put the system
on sleep mode or soft-off mode, depending on the BIOS setting. Press the power switch
for more than four seconds to let the system enter the soft-off mode regardless of the BIOS
setting.
ASUS X99-A II 3-1
Chapter 3
BIOS Setup
3
Chapter 3: BIOS setup
The new ASUS UEFI BIOS is a Unied Extensible Interface that complies with UEFI
architecture, offering a user-friendly interface that goes beyond the traditional keyboard-
only BIOS controls to enable a more exible and convenient mouse input. You can easily
navigate the new UEFI BIOS with the same smoothness as your operating system. The
term “BIOS” in this user manual refers to “UEFI BIOS” unless otherwise specied.
BIOS (Basic Input and Output System) stores system hardware settings such as storage
device conguration, overclocking settings, advanced power management, and boot
device conguration that are needed for system startup in the motherboard CMOS. In
normal circumstances, the default BIOS settings apply to most conditions to ensure
optimal performance. DO NOT change the default BIOS settings except in the following
circumstances:
• An error message appears on the screen during the system bootup and requests you
to run the BIOS Setup.
• You have installed a new system component that requires further BIOS settings or
update.
Inappropriate BIOS settings may result to instability or boot failure. We strongly
recommend that you change the BIOS settings only with the help of a trained service
personnel.
When downloading or updating the BIOS le, rename it as X99A2.CAP for this
motherboard.
3.1 Knowing BIOS
3-2 Chapter 3: BIOS Setup
Chapter 3
• The BIOS setup screens shown in this section are for reference purposes only, and
may not exactly match what you see on your screen.
• Ensure that a USB mouse is connected to your motherboard if you want to use the
mouse to control the BIOS setup program.
• If the system becomes unstable after changing any BIOS setting, load the default
settings to ensure system compatibility and stability. Select the Load Optimized
Defaults item under the Exit menu or press hotkey <F5>. See section 3.10 Exit
menu for details.
• If the system fails to boot after changing any BIOS setting, try to clear the CMOS and
reset the motherboard to the default value. See section 1.1.6 Onboard buttons and
switches for information on how to erase the RTC RAM via the Clear CMOS button.
• The BIOS setup program does not support the Bluetooth devices.
BIOS menu screen
The BIOS Setup program can be used under two modes: EZ Mode and Advanced Mode.
You can change modes from Setup Mode in Boot menu or by pressing the <F7> hotkey.
3.2 BIOS setup program
Use the BIOS Setup to update the BIOS or congure its parameters. The BIOS screen
include navigation keys and brief onscreen help to guide you in using the BIOS Setup
program.
Entering BIOS at startup
To enter BIOS Setup at startup, press <Delete> during the Power-On Self Test (POST). If you
do not press <Delete>, POST continues with its routines.
Entering BIOS Setup after POST
To enter BIOS Setup after POST:
• Press <Ctrl>+<Alt>+<Delete> simultaneously.
• Press the reset button on the system chassis.
• Press the power button to turn the system off then back on. Do this option only if you
failed to enter BIOS Setup using the rst two options.
After doing either of the three options, press <Delete> key to enter BIOS.
ASUS X99-A II 3-3
Chapter 3
3.2.1 EZ Mode
By default, the EZ Mode screen appears when you enter the BIOS setup program. The EZ
Mode provides you an overview of the basic system information, and allows you to select
the display language, system performance, mode and boot device priority. To access the
Advanced Mode, select Advanced Mode or press the <F7> hotkey for the advanced BIOS
settings.
The default screen for entering the BIOS setup program can be changed between EZ Mode
or Advanced Mode. Refer to the Setup Mode item in section 3.8 Boot menu for details.
The boot device options vary depending on the devices you installed to the system.
Saves the changes
and resets the
system
Selects the display language
of the BIOS setup program
Displays the CPU/motherboard temperature,
CPU voltage output, CPU/chassis/power fan
speed, and SATA information
Displays the system properties of the selected mode.
Click < or > to switch EZ System Tuning modes
Displays the
Advanced
mode menus
Selects the boot
device priority
Loads optimized
default settings
Creates storage RAID and
congures system overclocking
Shows the
bootable devices
Displays the CPU Fan’s speed. Click
the button to manually tune the fans
Enables or disables the SATA RAID mode
for Intel Rapid Storage Technology Search on the FAQ
3-4 Chapter 3: BIOS Setup
Chapter 3
3.2.2 Advanced Mode
The Advanced Mode provides advanced options for experienced end-users to congure
the BIOS settings. The gure below shows an example of the Advanced Mode. Refer to the
following sections for the detailed congurations.
To switch from EZ Mode to Advanced Mode, click Advanced Mode(F7) or press the <F7>
hotkey.
Conguration elds
Menu bar
Item descriptionSub-menu item
Menu items
Scroll bar
Last modied settings
Language
EZ Tuning Wizard
MyFavorite Quick Note
Hot Keys
Goes back to EZ Mode
Displays the CPU/motherboard temperature,
CPU and memory voltage output
Q-Fan control
ASUS X99-A II 3-5
Chapter 3
Menu bar
The menu bar on top of the screen has the following main items:
My Favorites For saving the frequently-used system settings and conguration.
Main For changing the basic system conguration
Ai Tweaker For changing the overclocking settings
Advanced For changing the advanced system settings
Monitor For displaying the system temperature, power status, and changing the
fan settings.
Boot For changing the system boot conguration
Tool For conguring options for special functions
Exit For selecting the exit options and loading default settings
Menu items
The highlighted item on the menu bar displays the specic items for that menu. For example,
selecting Main shows the Main menu items.
The other items (My Favorites, Ai Tweaker, Advanced, Monitor, Boot, Tool, and Exit) on the
menu bar have their respective menu items.
Submenu items
A greater than sign (>) before each item on any menu screen means that the item has a
submenu. To display the submenu, select the item and press <Enter>.
Language
This button above the menu bar contains the languages that you can select for your BIOS.
Click this button to select the the language that you want to display in your BIOS screen.
MyFavorites (F3)
This button above the menu bar shows all BIOS items in a Tree Map setup. Select frequently-
used BIOS settings and save it to MyFavorites menu.
Refer to section 3.3 My Favorites for more information.
Q-Fan Control (F6)
This button above the menu bar displays the current settings of your fans. Use this button to
manually tweak the fans to your desired settings.
Refer to section 3.2.3 QFan Control for more information.
EZ Tuning Wizard (F11)
This button above the menu bar allows you to view and tweak the overclocking settings of
your system. It also allows you to change the motherboard’s SATA mode from AHCI to RAID
mode.
Refer to section 3.2.4 EZ Tuning Wizard for more information.
3-6 Chapter 3: BIOS Setup
Chapter 3
Search on FAQ
Move your mouse over this button to show a QR code, scan this QR code on your mobile
device to connect to the BIOS FAQ web page of the ASUS support website. You can also
scan the following QR code:
Quick Note (F9)
This button above the menu bar allows you to key in notes of the activities that you have
done in BIOS.
• The Quick Note function does not support the following keyboard functions: delete,
cut, copy and paste.
• You can only use the alphanumeric characters to enter your notes.
Hot keys
This button above the menu bar contains the navigation keys for the BIOS setup program.
Use the navigation keys to select items in the menu and change the settings.
Scroll bar
A scroll bar appears on the right side of a menu screen when there are items that do not t
on the screen. Press the Up/Down arrow keys or <Page Up> / <Page Down> keys to display
the other items on the screen.
General help
At the bottom of the menu screen is a brief description of the selected item. Use <F12> key
to capture the BIOS screen and save it to the removable storage device.
Conguration elds
These elds show the values for the menu items. If an item is user-congurable, you can
change the value of the eld opposite the item. You cannot select an item that is not
user-congurable.
A congurable eld is highlighted when selected. To change the value of a eld, select it and
press <Enter> to display a list of options.
Last Modied button
This button shows the items that you last modied and saved in BIOS Setup.
ASUS X99-A II 3-7
Chapter 3
3.2.3 QFan Control
The QFan Control allows you to set a fan prole or manually congure the operating speed of
your CPU and chassis fans.
Click to select a fan to be
congured
Click to activate
PWM Mode
Click to undo the
changes
Click to apply the fan setting
Click to go back to main menu
Select a prole to apply to
your fans
Click to activate DC Mode
Select to manually congure
your fans
3-8 Chapter 3: BIOS Setup
Chapter 3
Conguring fans manually
Select Manual from the list of proles to manually congure your fans’ operating speed.
To congure your fans:
1. Select the fan that you want to congure and to view its current status.
2. Click and drag the speed points to adjust the fans’ operating speed.
3. Click Apply to save the changes then click Exit (ESC).
Speed points Click or tap to manually
congure your fans
ASUS X99-A II 3-9
Chapter 3
3.2.4 EZ Tuning Wizard
EZ Tuning Wizard allows you to overclock your CPU and DRAM, computer usage, and CPU
fan to their best settings. You can also easily set RAID in your system using this feature.
System OC setup RAID setup
OC Tuning
To start OC Tuning:
1. Press <F11> on your keyboard or click from the BIOS screen to open
EZ Tuning Wizard screen.
2. Click OC
then click Next.
3. Select a PC scenario Daily Computing or Gaming/Media Editing, then click Next.
3-10 Chapter 3: BIOS Setup
Chapter 3
Creating RAID
To create RAID:
1. Press <F11> on your keyboard or click from the BIOS screen to open
EZ Tuning Wizard screen.
2. Click RAID
then click Next.
• Ensure that your HDDs have no existing RAID volumes.
• Ensure to connect your HDDs to Intel® SATA connectors.
3. Select the port that you want to set to [RAID] mode, PCIE or SATA, then click Next.
4. Select a Main Cooling System BOX cooler, Tower cooler, Water cooler, or I’m not
sure, then click Next.
5. After selecting the Main Cooling System, click Next then click Yes to start the OC
Tuning.
ASUS X99-A II 3-11
Chapter 3
5. After selecting the type of RAID, click Next then click Yes to continue the RAID setup.
6. After the RAID setup is done, click Yes to exit the setup then click OK to reset your
system.
You can only select Easy Backup (RAID 10) if you connect four (4) HDDs.
b. For Super Speed, click Next then select from Super Speed (RAID0) or Super
Speed (RAID5).
a. For Easy Backup, click Next then select from Easy Backup (RAID1) or Easy
Backup (RAID10).
4. Select the type of storage for your RAID, Easy Backup or Super Speed, then click
Next.
3-12 Chapter 3: BIOS Setup
Chapter 3
3.3 My Favorites
MyFavorites is your personal space where you can easily save and access your favorite
BIOS items.
My Favorites comes with several performance, power saving, and fast boot related items by
default. You can personalize this screen by adding or removing items.
ASUS X99-A II 3-13
Chapter 3
Adding items to My Favorites
To add BIOS items:
1. Press <F3> on your keyboard or click from the BIOS screen to open
Setup Tree Map screen.
2. On the Setup Tree Map screen, select the BIOS items that you want to save in
MyFavorites screen.
3. Select an item from main menu panel, then click the submenu that you want to save
as favorite from the submenu panel and tap or click or press <Enter> on your
keyboard.
You cannot add the following items to My Favorite items:
• Items with submenu options
• User-managed items such as language and boot order
• Conguration items such as Memory SPD Information, system time and date.
4. Click Exit (ESC) or press <esc> key to close Setup Tree Map screen.
5. Go to My Favorites menu to view the saved BIOS items.
Main menu panel
Submenu panel
Selected shortcut
items
3-14 Chapter 3: BIOS Setup
Chapter 3
3.4 Main menu
The Main menu screen appears when you enter the Advanced Mode of the BIOS Setup
program. The Main menu provides you an overview of the basic system information, and
allows you to set the system date, time, language, and security settings.
Security
The Security menu items allow you to change the system security settings.
• If you have forgotten your BIOS password, erase the CMOS Real Time Clock (RTC)
RAM to clear the BIOS password. See section 1.1.6 Onboard buttons and switches
for information on how to erase the RTC RAM via the Clear CMOS button.
• The Administrator or User Password items on top of the screen show the default [Not
Installed]. After you set a password, these items show [Installed].
ASUS X99-A II 3-15
Chapter 3
3.5 Ai Tweaker menu
The Ai Tweaker menu items allow you to congure overclocking-related items.
Be cautious when changing the settings of the Ai Tweaker menu items. Incorrect eld
values can cause the system to malfunction.
The conguration options for this section vary depending on the CPU and DIMM model you
installed on the motherboard.
Scroll down to display other BIOS items.
Ai Overclock Tuner
This item allows you to select the CPU overclocking options to achieve the desired CPU
internal frequency. Select any of these preset overclocking conguration options:
[Auto] Loads the optimal settings for the system.
[Manual] Automatically optimizes the CPU ratio and BCLK frequency.
The following item appears only when you set the Ai Overclocking Tuner to [Manual].
3-16 Chapter 3: BIOS Setup
Chapter 3
BCLK Frequency
This item allows you to set the BCLK (base clock) frequency to enhance the system
performance. Use the <+> or <-> to adjust the value. The values range from 80.0 MHz
to 300.0 MHz.
We recommend you to set the value based on the CPU specication, as high BCLK
frequencies may damage the CPU permanently.
ASUS MultiCore Enhancement
[Auto] This item allows you to maximize the oveclocking performance optimized
by ASUS core ratio settings.
[Disabled] This item allows you to set to default core ratio settings.
CPU Core Ratio
This item allows you to set the CPU core ratio limit per core or synchronize automatically to
all cores.
Conguration options: [Auto] [Sync All Cores] [Per Core]
1-Core Ratio Limit [Auto]
Select [Auto] to apply the CPU default Turbo Ratio setting or manually
assign a 1-Core Limit value that must be higher than or equal to the 2-Core
Ratio Limit.
BCLK Frequency: DRAM Frequency Ratio
This item allows you to set the base clock frequency of the DRAM frequency ratio.
[Auto] The DRAM ratio is set to its optimized settings.
[100:100] The DRAM ratio is set to 100:100.
[100:133] The DRAM ratio is set to 100:133.
DRAM Frequency
This item allows you to set the memory operating frequency. The congurable options vary
with the BCLK (base clock) frequency setting. Select the auto mode to apply the optimized
setting.
Conguration options: [Auto] [DDR4-800MHz] [DDR4-4000MHz]
TPU
This item allows you to automatically overclock the CPU and DRAM frequencies and voltage
for an enhanced system performance.
[Keep Current Settings] Keep the current settings without changing anything.
[TPU I] Applies air cooling overclocking conditions.
[TPU II] Applies water cooling overclocking conditions.
Ensure to use water cooling device before selecting [TPU II].
ASUS X99-A II 3-17
Chapter 3
EPU Power Saving Mode
The ASUS EPU (Energy Processing Unit) sets the CPU in its minimum power consumption
settings. Enable this item to set lower CPU VCCIN and Vcore voltages and achieve the best
energy saving condition.
Conguration options: [Disabled] [Enabled]
Internal CPU Power Management
The subitems in this menu allow you to set the CPU ratio and its features.
Enhanced Intel SpeedStep Technology [Enabled]
This item allows the operating system to dynamically adjust the processor voltage and
cores frequency which decreases the average power consumption the average heat
production.
Conguration options: [Enabled] [Disabled]
Turbo Mode [Enabled]
This item allows you to enable your core processor’s speed to run faster than the
base operating frequency when it is below operating power, current and temperature
specication limit.
Conguration options: [Disabled] [Enabled]
3-18 Chapter 3: BIOS Setup
Chapter 3
3.6 Advanced menu
The Advanced menu items allow you to change the settings for the CPU and other system
devices.
Be cautious when changing the settings of the Advanced menu items. Incorrect eld values
can cause the system to malfunction.
ASUS X99-A II 3-19
Chapter 3
3.6.1 CPU Conguration
The items in this menu show the CPU-related information that the BIOS automatically
detects.
The items in this menu may vary based on the CPU installed.
Hyper-Threading [ALL]
This item allows you to enable/disable the Hyper-Threading for logical processor threads.
Conguration options: [Enabled] [Disabled]
3-20 Chapter 3: BIOS Setup
Chapter 3
CPU Power Management Conguration
The items in this menu allow you to manage and congure the CPU’s power.
Enhanced Intel SpeedStep Technology [Enabled]
This item allows your system to adjust the CPU’s voltage and cores frequency,
resulting in decreased power consumption and heat production.
[Disabled] The CPU runs at its default speed.
[Enabled] The system controls the CPU speed.
Turbo Mode [Enabled]
This item allows you to automatically set the CPU cores to run faster than the base
operating frequency when it is below the operating power, current and temperature
specication limit.
Conguration options: [Enabled] [Disabled]
CPU C-states [Auto]
This item allows you to set the power saving of the CPU states.
Conguration options: [Auto] [Disabled] [Enabled]
3.6.2 PCH Conguration
PCI Express Conguration
This item allows your system to automatically select the PCI Express port speed.
Conguration options: [Auto] [Gen1] [Gen2] [Gen3]
ASUS X99-A II 3-21
Chapter 3
3.6.3 PCH Storage Conguration
While entering Setup, the BIOS automatically detects the presence of SATA devices. The
SATA Port items show Not Present if no SATA device is installed to the corresponding SATA
port.
Scroll down to display the other BIOS items.
SATA Controller(s)
This item allows you to enable or disable the SATA Device.
Conguration options: [Disabled] [Enabled]
3-22 Chapter 3: BIOS Setup
Chapter 3
SATA Mode Selection
This item allows you to set the SATA conguration.
[AHCI] Set to [AHCI] when you want the SATA hard disk drives to use the AHCI
(Advanced Host Controller Interface). The AHCI allows the onboard storage
driver to enable advanced Serial ATA features that increases storage
performance on random workloads by allowing the drive to internally
optimize the order of commands.
[RAID] Set to [RAID] when you want to create a RAID conguration from the
SATA hard disk drives.
S.M.A.R.T. Status Check
S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is a monitoring system that
shows a warning message during POST (Power-on Self Test) when an error occurs in the
hard disks.
Conguration options: [On] [Off]
SATA6G_1(Gray) - SATA6G_10(Black)
This item allows you to enable or disable the selected SATA port.
Conguration options: [Disabled] [Enabled]
Hot Plug
These items appears only when the SATA Mode Selection is set to [AHCI] and allows you to
enable or disable SATA Hot Plug Support.
Conguration options: [Disabled] [Enabled]
ASUS X99-A II 3-23
Chapter 3
3.6.4 System Agent Conguration
3.6.5 USB Conguration
The items in this menu allow you to change the USB-related features.
The Mass Storage Devices item shows the auto-detected values. If no USB device is
detected, the item shows None.
USB Single Port Control
This item allows you to enable or disable the individual USB ports.
Refer to section 1.1.2 Motherboard layout for the location of the USB ports.
3-24 Chapter 3: BIOS Setup
Chapter 3
3.6.6 Platform Misc Conguration
The items in this menu allow you to congure the platform-related features.
3.6.7 Onboard Devices Conguration
Scroll down to view the other BIOS items.
HD Audio Controller
This item allows you to use the Azalia High Denition Audio Controller
Conguration options: [Disabled] [Enabled]
ASUS X99-A II 3-25
Chapter 3
PCIEX16_2 Slot Bandwidth
[Auto] Runs at AUTO with USB3_E56 port and PCIEX1_1 slot enabled.
[X1 Mode] Runs at x1 mode with USB3_E56 port and PCIEX1_1 slot enabled.
[X4 Mode] Runs at x4 mode for a high performance support with USB3_E56 port and
PCIEX1_1 slot disabled.
PCIEX16_4 Slot Bandwidth
[Auto] When a PCIE device higher than x4 interface is installed on the PCIEX16_4
slot, PCIEX16_1 and PCIEX16_4 slots will automatically run at x8 mode.
[X8 Mode] PCIEX16_1 and PCIEX16_4 slots run at x8 mode. Supports x1/x2/x4/x8
devices.
M2/U2 Switch
[Auto] The bandwidth will be switched to U.2 by default. When a M.2 device is
detected, the bandwidth will automatically be switched to M.2.
[M.2 Mode] The bandwidth will be switched to M.2 with U.2 mode disabled.
[U.2 Mode] The bandwidth will be switched to U.2 with M.2 mode disabled.
ASMedia USB 3.1 Controller
This item allows you to enable/disable the ASMedia® USB 3.1 controller of your system.
Conguration options: [Disabled] [Enabled]
RGB LED lighting
This item allows you to turn the RGB LED lighting on or off.
Conguration options: [On] [Off]
RGB LED lighting color
This item allows you to select the RGB LED lighting color.
RGB LED lighting effects
This item allows you to select the RGB LED lighting effects.
Conguration options: [Default] [Static] [Breathing] [Strobing] [Color Cycle]
Intel LAN Controller
This item allows you to enable or disable the Intel LAN controller.
Conguration options: [Disabled] [Enabled]
3-26 Chapter 3: BIOS Setup
Chapter 3
3.6.8 APM Conguration
ErP Ready
This item allows you to switch off some power at S4+S5 or S5 to get the system ready for
ErP requirement. When set to [Enabled], all other PME options are switched off.
Conguration options: [Disabled] [Enabled (S4+S5] [Enabled (S5)]
3.6.9 Network Stack Conguration
ASUS X99-A II 3-27
Chapter 3
3.6.10 HDD/SSD SMART Information
This menu displays the SMART information of the connected devices.
NVM Express devices currently do not support SMART information.
3-28 Chapter 3: BIOS Setup
Chapter 3
3.7 Monitor menu
The Monitor menu displays the system temperature/power status, and allows you to change
the fan settings.
Scroll down to display the other BIOS items.
Qfan Conguration
Qfan Tuning
Click this item to automatically detect the lowest speed and congure the minimum
duty cycle for each fan.
Water Pump Control
[Disabled] Disable the Water Pump control feature.
[DC mode] Enable the Water Pump control in DC mode for 3-pin chassis fan.
[PWM mode] Enable the Water Pump control in PWM mode for 4-pin chassis fan.
ASUS X99-A II 3-29
Chapter 3
3.8 Boot menu
The Boot menu items allow you to change the system boot options.
Boot Conguration
Fast Boot
[Disabled] This item allows your system to go back to its normal boot speed.
[Enabled] This item allows your system to accelerate the boot speed.
The following items appear only when you set the Fast Boot to [Enabled].
Next Boot after AC Power Loss [Normal Boot]
[Normal Boot] Returns to normal boot on the next boot after an AC power loss.
[Fast Boot] Accelerates the boot speed on the next boot after an AC power loss.
3-30 Chapter 3: BIOS Setup
Chapter 3
DirectKey (DRCT)
[Disabled] Disables the DirectKey button. The system will only power on or off when
you press the DirectKey button.
[Enabled] Allows the system to power on and go to the BIOS Setup directly when you
press the Reset button. Connect the 2-pin connector of the chassis reset
buton cable to the onboard DRCT header.
Setup Mode
[Advanced Mode] This item allows you to go to Advanced Mode of the BIOS after POST.
[EZ Mode] This item allows you to go to EZ Mode of the BIOS after POST.
CSM (Compatibility Support Module)
This item allows you to congure the CSM (Compatibility Support Module) items to fully
support the various VGA, bootable devices and add-on devices for better compatibility.
Launch CSM [Enabled]
[Auto] The system automatically detects the bootable devices and the add-
on devices.
[Enabled] For better compatibility, enable the CSM to fully support the non-UEFI
driver add-on devices or the Windows® UEFI mode.
[Disabled] Disables the CSM to fully support the non-UEFI driver add-on devices
or the Windows® UEFI mode.
The following items appear only when you set the Launch CSM to [Enabled].
Boot Device Control [UEFI and Legacy OPROM]
This item allows you to select the type of devices that you want to boot.
Conguration options: [UEFI and Legacy OpROM] [Legacy OpROM only]
[UEFI only]
Boot from Network Devices [Legacy only]
This item allows you to select the type of network devices that you want to
launch.
Conguration options: [Legacy only] [UEFI driver rst] [Ignore]
Boot from Storage Devices [Legacy only]
This item allows you to select the type of storage devices that you want to
launch.
Conguration options: [Legacy only] [UEFI driver rst] [Ignore]
Boot from PCIE/PCI Expansion Devices [Legacy only]
This item allows you to select the type of PCIe/PCI expansion devices that
you want to launch.
Conguration options: [Legacy only] [UEFI driver rst]
ASUS X99-A II 3-31
Chapter 3
Secure Boot
This item allows you to congure the Windows® Secure Boot settings and manage its keys to
protect the system from unauthorized access and malwares during POST
Boot Option Priorities
These items specify the boot device priority sequence from the available devices. The
number of device items that appears on the screen depends on the number of devices
installed in the system.
• To access Windows® OS in Safe Mode, press <F8 > after POST (Windows® 8 not
supported).
• To select the boot device during system startup, press <F8> when ASUS Logo
appears.
Boot Override
These item displays the available devices. The number of device items that appear on the
screen depends on the number of devices installed in the system. Click an item to start
booting from the selected device.
3-32 Chapter 3: BIOS Setup
Chapter 3
3.9 Tool menu
The Tool menu items allow you to congure options for special functions. Select an item then
press <Enter> to display the submenu.
Setup Animator
This item allows you to enable or disable the Setup animator.
Conguration options: [Disabled] [Enabled]
GPU Post
This item displays the information and recommended conguration for the PCIE slots that the
graphics card is installed in your system.
This feature is only supported on selected ASUS graphics cards.
3.9.1 ASUS EZ Flash 3 Utility
This item allows you to run ASUS EZ Flash 3. When you press <Enter>, a conrmation
message appears. Use the left/right arrow key to select between [Yes] or [No], then press
<Enter> to conrm your choice.
For more details, refer to section 3.11.2 ASUS EZ Flash 3.
ASUS X99-A II 3-33
Chapter 3
3.9.2 Secure Erase
SSD speeds may lower over time as with any storage medium due to data processing.
Secure Erase completely and safely cleans your SSD, restoring it to factory performance
levels.
Secure Erase is only available in AHCI mode. Ensure to set the SATA mode to AHCI. Click
Advanced > SATA Conguration > AHCI.
To launch Secure Erase, click Tool > Secure Erase on the Advanced mode menu.
Check the ASUS support site for a full list of SSDs tested with Secure Erase. The drive may
become unstable if you run Secure Erase on an incompatible SSD.
• The time to erase the contents of your SSD may take a while depending on its size.
Do not turn off the system during the process.
• Secure Erase is only supported on Intel SATA port. For more information about Intel
SATA ports, refer to section 1.1.2 Motherboard layout of this manual.
Displays the
available SSDs
Status denition:
• Frozen. The frozen state is the result of a BIOS protective measure. The BIOS
guards drives that do not have password protection by freezing them prior to booting.
If the drive is frozen, a power off or hard reset of your PC must be performed to
proceed with the Secure Erase.
• Locked. SSDs might be locked if the Secure Erase process is either incomplete
or was stopped. This may be due to a third party software that uses a different
password dened by ASUS. You have to unlock the SSD in the software before
proceeding with Secure Erase.
3-34 Chapter 3: BIOS Setup
Chapter 3
Load from Prole
This item allows you to load the previous BIOS settings saved in the BIOS Flash. Key in the
prole number that saved your BIOS settings, press <Enter>, and then select Yes.
• DO NOT shut down or reset the system while updating the BIOS to prevent the
system boot failure!
• We recommend that you update the BIOS le only coming from the same memory/
CPU conguration and BIOS version.
Prole Name
This item allows you to key in a prole name.
Save to Prole
This item allows you to save the current BIOS settings to the BIOS Flash, and create a
prole. Key in a prole number from one to eight, press <Enter>, and then select Yes.
Load/Save Prole from/to USB Drive
This item allows you to load or save prole from your USB drive, load and save prole to your
USB drive.
3.9.3 ASUS Overclocking Prole
This item allows you to store or load multiple BIOS settings.
ASUS X99-A II 3-35
Chapter 3
3.9.4 ASUS SPD Information
This item allows you to view the DRAM SPD information.
3-36 Chapter 3: BIOS Setup
Chapter 3
3.10 Exit menu
The Exit menu items allow you to load the optimal default values for the BIOS items, and
save or discard your changes to the BIOS items. You can access the EZ Mode from the Exit
menu.
Load Optimized Defaults
This option allows you to load the default values for each of the parameters on the Setup
menus. When you select this option or if you press <F5>, a conrmation window appears.
Select OK to load the default values.
Save Changes & Reset
Once you are nished making your selections, choose this option from the Exit menu to
ensure the values you selected are saved. When you select this option or if you press <F10>,
a conrmation window appears. Select OK to save changes and exit.
Discard Changes and Exit
This option allows you to exit the Setup program without saving your changes. When you
select this option or if you press <Esc>, a conrmation window appears. Select Yes to
discard changes and exit.
Launch EFI Shell from USB drives
This option allows you to attempt to launch the EFI Shell application (shellx64.e) from one of
the available lesystem devices.
ASUS X99-A II 3-37
Chapter 3
3.11 Updating BIOS
The ASUS website publishes the latest BIOS versions to provide enhancements on system
stability, compatibility,and performance. However, BIOS updating is potentially risky. If
there is no problem using the current version of BIOS, DO NOT manually update the BIOS.
Inappropriate BIOS updating may result to system’s failure to boot. Carefully follow the
instructions in this chapter to update your BIOS when necessary.
Visit http://www.asus.com to download the latest BIOS le for this motherboard.
The following utilities allow you to manage and update the motherboard BIOS setup program.
1. EZ Update: Updates the BIOS in Windows® environment.
2. ASUS EZ Flash 3: Updates the BIOS using a USB ash drive.
3. ASUS CrashFree BIOS 3: Restores the BIOS using the motherboard support DVD or a
USB ash drive when the BIOS le fails or gets corrupted.
3.11.1 EZ Update
The EZ Update is a utility that allows you to update the motherboard BIOS in Windows®
environment.
• EZ Update requires an Internet connection either through a network or an ISP
(Internet Service Provider).
• This utility is available in the support DVD that comes with the motherboard package.
3-38 Chapter 3: BIOS Setup
Chapter 3
3.11.2 ASUS EZ Flash 3
ASUS EZ Flash 3 allows you to download and update to the latest BIOS through the Internet
without having to use a bootable oppy disk or an OS-based utility.
Updating through the Internet varies per region and Internet conditions. Check your local
Internet connection before updating through the Internet.
To update the BIOS by USB:
1. Enter the Advanced Mode of the BIOS setup program. Go to the Tool menu to select
ASUS EZ Flash Utility and press <Enter>.
2. Insert the USB ash disk that contains the latest BIOS le to the USB port.
3. Select by USB.
4. Press <Tab> to switch to the Drive eld.
5. Press the Up/Down arrow keys to nd the USB ash disk that contains the latest BIOS,
and then press <Enter>.
6. Press <Tab> to switch to the Folder Info eld.
7. Press the Up/Down arrow keys to nd the BIOS le, and then press <Enter> to perform
the BIOS update process. Reboot the system when the update process is done.
ASUS X99-A II 3-39
Chapter 3
• This function can support devices such as a USB ash disk with FAT 32/16 format and
single partition only.
• DO NOT shut down or reset the system while updating the BIOS to prevent system
boot failure!
Ensure to load the BIOS default settings to ensure system compatibility and stability. Select
the Load Optimized Defaults item under the Exit menu. See section 3.10 Exit Menu for
details.
To update the BIOS by Internet:
1. Enter the Advanced Mode of the BIOS setup program. Go to the Tool menu to select
ASUS EZ Flash Utility and press <Enter>.
2. Select by Internet.
3. Press the Left/Right arrow keys to select an Internet connection method, and then
press <Enter>.
Ensure to load the BIOS default settings to ensure system compatibility and stability. Select
the Load Optimized Defaults item under the Exit menu. See section 3.10 Exit Menu for
details.
4. Follow the onscreen instructions to complete the update.
5. Reboot the system when the update process is done.
3-40 Chapter 3: BIOS Setup
Chapter 3
3.11.3 ASUS CrashFree BIOS 3
The ASUS CrashFree BIOS 3 utility is an auto recovery tool that allows you to restore the
BIOS le when it fails or gets corrupted during the updating process. You can restore a
corrupted BIOS le using the motherboard support DVD or a USB ash drive that contains
the BIOS le.
The BIOS le in the motherboard support DVD may be older than the BIOS le published
on the ASUS ofcial website. If you want to use the newer BIOS le, download the le at
https://www.asus.com/support/ and save it to a USB ash drive.
Recovering the BIOS
To recover the BIOS:
1. Turn on the system.
2. Insert the motherboard support DVD to the optical drive, or the USB ash drive
containing the BIOS le to the USB port.
3. The utility automatically checks the devices for the BIOS le. When found, the utility
reads the BIOS le and enters ASUS EZ Flash 3 automatically.
4. The system requires you to enter BIOS Setup to recover the BIOS setting. To ensure
system compatibility and stability, we recommend that you press <F5> to load default
BIOS values.
DO NOT shut down or reset the system while updating the BIOS! Doing so can cause
system boot failure!
ASUS X99-A II 4-1
Chapter 4
RAID Support
4
4.1 RAIDcongurations
The motherboard supports Intel® Rapid Storage Technology with RAID 0, RAID 1, RAID 10,
and RAID 5 solution.
If you want to install a Windows® operating system to a hard disk drive included in a RAID
set, you have to create a RAID driver disk and load the RAID driver during OS installation.
Refer to section 4.2CreatingaRAIDdriverdiskfor details.
4.1.1 RAIDdenitions
RAID0(Datastriping) optimizes two identical hard disk drives to read and write data in
parallel, interleaved stacks. Two hard disks perform the same work as a single drive but at a
sustained data transfer rate, double that of a single disk alone, thus improving data access
and storage. Use of two new identical hard disk drives is required for this setup.
RAID1(Datamirroring) copies and maintains an identical image of data from one drive to
a second drive. If one drive fails, the disk array management software directs all applications
to the surviving drive as it contains a complete copy of the data in the other drive. This RAID
conguration provides data protection and increases fault tolerance to the entire system. Use
two new drives or use an existing drive and a new drive for this setup. The new drive must be
of the same size or larger than the existing drive.
RAID 5 strips both data and parity information across three or more hard disk drives. Among
the advantages of RAID 5 conguration include better HDD performance, fault tolerance, and
higher storage capacity. The RAID 5 conguration is best suited for transaction processing,
relational database applications, enterprise resource planning, and other business systems.
Use a minimum of three identical hard disk drives for this setup.
RAID 10 is data striping and data mirroring combined without parity (redundancy data) having
to be calculated and written. With the RAID 10 conguration you get all the benets of both
RAID 0 and RAID 1 congurations. Use four new hard disk drives or use an existing drive
and three new drives for this setup.
4-2 Chapter 4:RAID Support
Chapter 4
4.1.2 InstallingSerialATAharddisks
The motherboard supports Serial ATA hard disk drives. For optimal performance, install
identical drives of the same model and capacity when creating a disk array.
To install the SATA hard disks for a RAID conguration:
1. Install the SATA hard disks into the drive bays.
2. Connect the SATA signal cables.
3. Connect a SATA power cable to the power connector on each drive.
4.1.3 Intel®RapidStorageTechnologyinUEFIBIOS
To enter the Intel® Rapid Storage Technology in UEFI BIOS:
1. Enter the BIOS Setup during POST.
2. Go to the Advanced menu > PCHStorageConguration, then press <Enter>.
3. Set the SATA Controller Mode Selection item to [RAIDMode].
4. Go to the Boot menu > CSM(CompatibilitySupportModule)> LaunchCSM, then
set the item to [Disabled].
5. Save your changes and exit the BIOS Setup, then enter the BIOS Setup again.
6. Go to the Advanced menu > Intel(R)RapidStorageTechnology, then press <Enter>
to display the Intel® Rapid Storage Technology menu.
Refer to Chapter 3 for details on entering and navigating through the BIOS Setup.
Due to chipset limitation, when SATA ports are set to RAID mode, all SATA ports run at
RAID mode together.
ASUS X99-A II 4-3
Chapter 4
CreatingaRAIDset
To create a RAID set:
1. From the Intel® Rapid Storage Technology menu, select CreateRAIDVolume and
press <Enter>. The following screen appears:
2. When the Name item is selected, enter a name for the RAID set and press <Enter>.
3. When the RAID Level item is selected, press <Enter> to select the RAID level to
create, and then press <Enter>.
4. Under Select Disks, press <Enter> and select X for the disks you want to include in the
RAID set.
4-4 Chapter 4:RAID Support
Chapter 4
5. When the Strip Size item is selected, press <Enter> to select strip size for the RAID
array (for RAID 0, 10 and 5 only), and then press <Enter>. The available strip size
values range from 4 KB to 128 KB. The following are typical values:
- RAID 0: 128 KB
- RAID 10: 64 KB
- RAID 5: 64 KB
We recommend a lower strip size for server systems, and a higher strip size for multimedia
computer systems used mainly for audio and video editing.
6. When the Capacity(MB) item is selected, enter the RAID volume capacity that you
want and press <Enter>. The default value indicates the maximum allowed capacity.
7. When the CreateVolume item is selected, press <Enter> to create the RAID volume
and return to the Intel® Rapid Storage Technology menu.
ASUS X99-A II 4-5
Chapter 4
DeletingaRAIDset
Be cautious when deleting a RAID set. You will lose all data on the hard disk drives when
you delete a RAID set.
To delete a RAID set:
1. From the Intel® Rapid Storage Technology menu, select the RAID volume you want to
delete and press <Enter>. The following screen appears:
2. When the Delete item is selected, press <Enter>, then select Yes to delete the RAID
volume and return to the Intel® Rapid Storage Technology menu, or select No to
cancel.
4-6 Chapter 4:RAID Support
Chapter 4
4.1.4 Intel®RapidStorageTechnologyOptionROMutility
To enter the Intel® Rapid Storage Technology Option ROM utility:
1. Turn on the system.
2. During POST, press <Ctrl> + <I> to display the utility main menu.
The navigation keys at the bottom of the screen allow you to move through the menus
and select the menu options.
The RAID BIOS setup screens shown in this section are for reference only and may not
exactly match the items on your screen.
The utility supports maximum four hard disk drives for RAID conguration.
RAID Volumes:
None defined.
Physical Devices:
Port Device Model Serial # Size Type/Status(Vol ID)
0 ST3160812AS 9LS0HJA4 149.0GB Non-RAID Disk
1 ST3160812AS 9LS0F4HL 149.0GB Non-RAID Disk
2 ST3160812AS 3LS0JYL8 149.0GB Non-RAID Disk
3 ST3160812AS 9LS0BJ5H 149.0GB Non-RAID Disk
ASUS X99-A II 4-7
Chapter 4
CreatingaRAIDset
To create a RAID set:
1. From the utility main menu, select 1.CreateRAIDVolume and press <Enter>. The
following screen appears:
2. Enter a name for the RAID set and press <Enter>.
3. When the RAID Level item is selected, press the up/down arrow key to select a RAID
level to create, and then press <Enter>.
4. When the Disks item is selected, press <Enter> to select the hard disk drives you want
to include in the RAID set. The SELECT DISKS screen appears:
Enter a unique volume name that has no special characters
and is 16 characters or less.
[HELP]
Name: Volume 0
RAID Level: aaaaaaaaaaaaaaa
Disks: dssdsdsds
Strip Size:aaaaaaaaaaaaaaaa
Capacity:aaaaaaaaaaaaaa
Sync:aaaaaaaaaa
Create volume
[SELECT DISKS]
Port Device Model Serial # Size Status
0 ST3160812AS 9LS0HJA4 149.0GB Non-RAID Disk
1 ST3160812AS 9LS0F4HL 149.0GB Non-RAID Disk
2 ST3160812AS 3LS0JYL8 149.0GB Non-RAID Disk
3 ST3160812AS 9LS0BJ5H 149.0GB Non-RAID Disk
Select 2 to 6 to use in creating the volume.
[↑↓]-Prev/Next [SPACE]-SelectDisk [ENTER]-Done
4-8 Chapter 4:RAID Support
Chapter 4
5. Use the up/down arrow key to select a drive, and then press <Space> to select. A
small triangle marks the selected drive. Press <Enter> after completing your selection.
6. Use the up/down arrow key to select the strip size for the RAID array (for RAID 0, 10
and 5 only), and then press <Enter>. The available strip size values range from 4 KB to
128 KB. The following are typical values:
- RAID 0: 128 KB
- RAID 10: 64 KB
- RAID 5: 64 KB
We recommend a lower strip size for server systems, and a higher strip size for multimedia
computer systems used mainly for audio and video editing.
7. When the Capacity item is selected, enter the RAID volume capacity that you want
and press <Enter>. The default value indicates the maximum allowed capacity.
8. When the CreateVolume item is selected, press <Enter>. The following warning
message appears:
9. Press <Y> to create the RAID volume and return to the main menu, or <N> to go back
to the CREATEVOLUME menu.
WARNING: ALL DATA ON SELECTED DISKS WILL BE LOST.
Are you sure you want to create this volume? (Y/N)
ASUS X99-A II 4-9
Chapter 4
DeletingaRAIDset
Be cautious when deleting a RAID set. You will lose all data on the hard disk drives when
you delete a RAID set.
To delete a RAID set:
1. From the utility main menu, select 2.DeleteRAIDVolume and press <Enter>. The
following screen appears:
2. Use the up/down arrow key to select the RAID set you want to delete, and then press
<Delete>. The following warning message appears:
3. Press <Y> to delete the RAID set and return to the utility main menu, or press <N> to
return to the DELETE VOLUME menu.
Deleting a volume will reset the disks to non-RAID.
WARNING: ALL DISK DATA WILL BE DELETED.
(This does not apply to Recovery volumes)
[HELP]
[DELETE VOLUME MENU]
Name Level Drives Capacity Status Bootable
Volume0 RAID0 (Stripe) 2 298.0GB Normal Yes
[↑↓]-Select [ESC]-Previous Menu [DEL]-Delete Volume
ALL DATA IN THE VOLUME WILL BE LOST!
(This does not apply to Recovery volumes)
Are you sure you want to delete “Volume0”? (Y/N):
[DELETE VOLUME VERIFICATION]
4-10 Chapter 4:RAID Support
Chapter 4
ExitingtheIntel®RapidStorageTechnologyOptionROMutility
To exit the utility:
1. From the utility main menu, select 5.Exit, then press <Enter>. The following warning
message appears:
2. Press <Y> to exit or press <N> to return to the utility main menu.
Are you sure you want to exit? (Y/N):
[CONFIRM EXIT]
4.2 CreatingaRAIDdriverdisk
4.2.1 CreatingaRAIDdriverdiskinWindows®
ToinstalltheRAIDdriverforWindows®OS:
1. During the OS installation, click LoadDriver to allow you to select the installation
media containing the RAID driver.
2. Insert the USB ash drive with RAID driver into the USB port or the support DVD into
the optical drive, and then click Browse.
3. Click the name of the device you’ve inserted, go to Drivers > RAID, and then select
the RAID driver for the corresponding OS version. ClickOK.
4. Follow the succeeding screen instructions to complete the installation.
Before loading the RAID driver from a USB ash drive, you have to use another computer
to copy the RAID driver from the support DVD to the USB ash drive.
To set up a Windows® UEFI operating system under RAID mode, ensure to load the UEFI
driver for your optical drive.
ASUS X99-A II A-1
Appendix
Appendix
Notices
Federal Communications Commission Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
• This device may not cause harmful interference.
• This device must accept any interference received including interference that may cause
undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with manufacturer’s instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver
is connected.
• Consult the dealer or an experienced radio/TV technician for help.
The use of shielded cables for connection of the monitor to the graphics card is required
toassurecompliancewithFCCregulations.Changesormodicationstothisunitnot
expressly approved by the party responsible for compliance could void the user’s authority
to operate this equipment.
Appendix
A-2 Appendix
Appendix
IC: Canadian Compliance Statement
ComplieswiththeCanadianICES-003ClassBspecications.ThisdevicecomplieswithRSS
210 of Industry Canada. This Class B device meets all the requirements of the Canadian
interference-causing equipment regulations.
This device complies with Industry Canada license exempt RSS standard(s). Operation is
subject to the following two conditions: (1) this device may not cause interference, and (2)
this device must accept any interference, including interference that may cause undesired
operation of the device.
Cut appareil numérique de la Classe B est conforme à la norme NMB-003 du Canada.
Cet appareil numérique de la Classe B respecte toutes les exigences du Règlement sur le
matériel brouilleur du Canada.
Cet appareil est conforme aux normes CNR exemptes de licence d’Industrie Canada. Le
fonctionnement est soumis aux deux conditions suivantes :
(1) cet appareil ne doit pas provoquer d’interférences et
(2) cet appareil doit accepter toute interférence, y compris celles susceptibles de provoquer
un fonctionnement non souhaité de l’appareil.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian Department
of Communications.
This class B digital apparatus complies with Canadian ICES-003.
VCCI: Japan Compliance Statement
Class B ITE
KC: Korea Warning Statement
ASUS X99-A II A-3
Appendix
REACH
Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of
Chemicals) regulatory framework, we published the chemical substances in our products at
ASUS REACH website at http://csr.asus.com/english/REACH.htm.
DO NOT throw the motherboard in municipal waste. This product has been designed to
enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin
indicates that the product (electrical and electronic equipment) should not be placed in
municipal waste. Check local regulations for disposal of electronic products.
DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol
of the crossed out wheeled bin indicates that the battery should not be placed in municipal
waste.
ASUS Recycling/Takeback Services
ASUS recycling and takeback programs come from our commitment to the highest standards
for protecting our environment. We believe in providing solutions for you to be able to
responsibly recycle our products, batteries, other components as well as the packaging
materials. Please go to http://csr.asus.com/english/Takeback.htm for detailed recycling
information in different regions.
Regional notice for California
WARNING! This product may contain chemicals known to the State of California to cause
cancer, birth defects or other reproductive harm. Wash hands after handling.
Google™ License Terms
Copyright© 2016 Google Inc. All Rights Reserved.
LicensedundertheApacheLicense,Version2.0(the“License”);youmaynotusethisle
except in compliance with the License. You may obtain a copy of the License at:
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the
License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
ANY KIND, either express or implied.
SeetheLicenseforthespeciclanguagegoverningpermissionsandlimitationsunderthe
License.
A-4 Appendix
Appendix
Română ASUSTeK Computer Inc. declară că acest dispozitiv se conformează
cerinţelor esenţiale şi altor prevederi relevante ale directivelor conexe. Textul
complet al declaraţiei de conformitate a Uniunii Europene se găseşte la:
www.asus.com/support
Srpski ASUSTeK Computer Inc. ovim izjavljuje da je ovaj uređaj u saglasnosti
sa osnovnim zahtevima i drugim relevantnim odredbama povezanih
Direktiva. Pun tekst EU deklaracije o usaglašenosti je dostupan da adresi:
www.asus.com/support
Slovensky Spoločnosť ASUSTeK Computer Inc. týmto vyhlasuje, že toto
zariadenie vyhovuje základným požiadavkám a ostatým príslušným
ustanoveniam príslušných smerníc. Celý text vyhlásenia o zhode pre štáty EÚ
je dostupný na adrese: www.asus.com/support
Slovenščina ASUSTeK Computer Inc. izjavlja, da je ta naprava skladna z
bistvenimi zahtevami in drugimi ustreznimi določbami povezanih direktiv.
Celotno besedilo EU-izjave o skladnosti je na voljo na spletnem mestu:
www.asus.com/support
Español Por la presente, ASUSTeK Computer Inc. declara que este dispositivo
cumple los requisitos básicos y otras disposiciones pertinentes de las
directivas relacionadas. El texto completo de la declaración de la UE de
conformidad está disponible en: www.asus.com/support
Svenska ASUSTeK Computer Inc. förklarar härmed att denna
enhet överensstämmer med de grundläggande kraven och andra
relevanta föreskrifter i relaterade direktiv. Fulltext av EU-försäkran om
överensstämmelse nns på: www.asus.com/support
Українська ASUSTeK Computer Inc. заявляє, що цей пристрій відповідає
основним вимогам та іншим відповідним положенням відповідних
Директив. Повний текст декларації відповідності стандартам ЄС
доступний на: www.asus.com/support
Türkçe AsusTek Computer Inc., bu aygıtın temel gereksinimlerle ve ilişkili
Yönergelerin diğer ilgili koşullarıyla uyumlu olduğunu beyan eder. AB
uygunluk bildiriminin tam metni şu adreste bulunabilir:
www.asus.com/support
Bosanski ASUSTeK Computer Inc. ovim izjavljuje da je ovaj uređaj usklađen
sa bitnim zahtjevima i ostalim odgovarajućim odredbama vezanih direktiva.
Cijeli tekst EU izjave o usklađenosti dostupan je na: www.asus.com/support
English ASUSTeK Computer Inc. hereby declares that this device is in
compliance with the essential requirements and other relevant provisions of
related Directives. Full text of EU declaration of conformity available at:
www.asus.com/support
Français AsusTek Computer Inc. déclare par la présente que cet appareil est
conforme aux critères essentiels et autres clauses pertinentes des directives
concernées. La déclaration de conformité de l’UE peut être téléchargée à
partir du site Internet suivant : www.asus.com/support.
Deutsch ASUSTeK Computer Inc. erklärt hiermit, dass dieses Gerät mit
den wesentlichen Anforderungen und anderen relevanten Bestimmungen
der zugehörigen Richtlinien übereinstimmt. Der gesamte Text der EU-
Konformitätserklärung ist verfügbar unter: www.asus.com/support
Italiano ASUSTeK Computer Inc. con la presente dichiara che questo
dispositivo è conforme ai requisiti essenziali e alle altre disposizioni pertinenti
con le direttive correlate. Il testo completo della dichiarazione di conformità
UE è disponibile all’indirizzo: www.asus.com/support
Русский Компания ASUS заявляет, что это устройство соответствует
основным требованиям и другим соответствующим условиям
соответствующих директив. Подробную информацию, пожалуйста,
смотрите на www.asus.com/support
Български С настоящото ASUSTeK Computer Inc. декларира, че това
устройство е в съответствие със съществените изисквания и другите
приложими постановления на свързаните директиви. Пълният текст на
декларацията за съответствие на ЕС е достъпна на адрес:
www.asus.com/support
Hrvatski ASUSTeK Computer Inc. ovim izjavljuje da je ovaj uređaj sukladan
s bitnim zahtjevima i ostalim odgovarajućim odredbama vezanih direktiva.
Cijeli tekst EU izjave o sukladnosti dostupan je na: www.asus.com/support
Čeština Společnost ASUSTeK Computer Inc. tímto prohlašuje, že toto
zařízení splňuje základní požadavky a další příslušná ustanovení souvisejících
směrnic. Plné znění prohlášení o shodě EU je k dispozici na adrese:
www.asus.com/support
Dansk ASUSTeK Computer Inc. erklærer hermed, at denne enhed er i
overensstemmelse med hovedkravene og andre relevante bestemmelser i de
relaterede direktiver. Hele EU-overensstemmelseserklæringen kan ndes på:
www.asus.com/support
Nederlands ASUSTeK Computer Inc. verklaart hierbij dat dit apparaat
voldoet aan de essentiële vereisten en andere relevante bepalingen van
de verwante richtlijnen. De volledige tekst van de EU-verklaring van
conformiteit is beschikbaar op: www.asus.com/support
Eesti Käesolevaga kinnitab ASUSTeK Computer Inc, et see seade vastab
asjakohaste direktiivide oluliste nõuetele ja teistele asjassepuutuvatele
sätetele. EL vastavusdeklaratsiooni täielik tekst on saadaval järgmisel
aadressil: www.asus.com/support
Suomi ASUSTeK Computer Inc. ilmoittaa täten, että tämä laite on
asiaankuuluvien direktiivien olennaisten vaatimusten ja muiden tätä
koskevien säädösten mukainen. EU-yhdenmukaisuusilmoituksen koko teksti
on luettavissa osoitteessa: www.asus.com/support
Ελληνικά Με το παρόν, η AsusTek Computer Inc. δηλώνει ότι αυτή η
συσκευή συμμορφώνεται με τις θεμελιώδεις απαιτήσεις και άλλες σχετικές
διατάξεις των Οδηγιών της ΕΕ. Το πλήρες κείμενο της δήλωσης συμβατότητας
είναι διαθέσιμο στη διεύθυνση: www.asus.com/support
Magyar Az ASUSTeK Computer Inc. ezennel kijelenti, hogy ez az eszköz
megfelel a kapcsolódó Irányelvek lényeges követelményeinek és egyéb
vonatkozó rendelkezéseinek. Az EU megfelelőségi nyilatkozat teljes szövege
innen letölthető: www.asus.com/support
Latviski ASUSTeK Computer Inc. ar šo paziņo, ka šī ierīce atbilst saistīto
Direktīvu būtiskajām prasībām un citiem citiem saistošajiem nosacījumiem.
Pilns ES atbilstības paziņojuma teksts pieejams šeit: www.asus.com/support
Lietuvių „ASUSTeK Computer Inc.“ šiuo tvirtina, kad šis įrenginys atitinka
pagrindinius reikalavimus ir kitas svarbias susijusių direktyvų nuostatas. Visą
ES atitikties deklaracijos tekstą galima rasti: www.asus.com/support
Norsk ASUSTeK Computer Inc. erklærer herved at denne enheten er i
samsvar med hovedsaklige krav og andre relevante forskrifter i relaterte
direktiver. Fullstendig tekst for EU-samsvarserklæringen nnes på:
www.asus.com/support
Polski Firma ASUSTeK Computer Inc. niniejszym oświadcza, że
urządzenie to jest zgodne z zasadniczymi wymogami i innymi właściwymi
postanowieniami powiązanych dyrektyw. Pełny tekst deklaracji zgodności UE
jest dostępny pod adresem: www.asus.com/support
Português A ASUSTeK Computer Inc. declara que este dispositivo está em
conformidade com os requisitos essenciais e outras disposições relevantes
das Diretivas relacionadas. Texto integral da declaração da UE disponível em:
www.asus.com/support
ASUS X99-A II A-5
Appendix
ASUS contact information
ASUSTeK COMPUTER INC.
Address 4F, No. 150, Li-Te Road, Peitou, Taipei 112, Taiwan
Telephone +886-2-2894-3447
Fax +886-2-2890-7798
Web site www.asus.com
Technical Support
Telephone +86-21-38429911
Fax +86-21-5866-8722, ext. 9101#
Online support http://qr.asus.com/techserv
ASUS COMPUTER INTERNATIONAL (America)
Address 800 Corporate Way, Fremont, CA 94539, USA
Telephone +1-510-739-3777
Fax +1-510-608-4555
Web site http://www.asus.com/us/
Technical Support
Support fax +1-812-284-0883
Telephone +1-812-282-2787
Online support http://qr.asus.com/techserv
ASUS COMPUTER GmbH (Germany and Austria)
Address Harkort Str. 21-23, 40880 Ratingen, Germany
Fax +49-2102-959931
Web site http://www.asus.com/de
Online contact http://eu-rma.asus.com/sales
Technical Support
Telephone +49-2102-5789555
Support Fax +49-2102-959911
Online support http://qr.asus.com/techserv
A-6 Appendix
Appendix
DECLARATION OF CONFORMITY
Per FCC Part 2 Section 2. 1077(a)
Responsible Party Name: Asus Computer International
Address: 800 Corporate Way, Fremont, CA 94539.
Phone/Fax No: (510)739-3777/(510)608-4555
hereby declares that the product
Product Name : Motherboard
Model Number : X99-A II
Conforms to the following specifications:
FCC Part 15, Subpart B, Unintentional Radiators
Supplementary Information:
This device complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference,
and (2) this device must accept any interference received, including interference
that may cause undesired operation.
Representative Person’s Name : Steve Chang / President
Signature :
Date : Mar. 14, 2016
Ver. 140331