DELL 5250 User Manual

Displayed below is the user manual for 5250 by DELL which is a product in the All-in-One PCs/Workstations category. This manual has pages.

Related Manuals

DELL 5250 Manual

Dell OptiPlex 5250 All-In-One

Owner's Manual

Regulatory Model: W14B

Regulatory Type: W14B002

Notes, cautions, and warnings

NOTE: A NOTE indicates important information that helps you make better use of your product.

CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.

WARNING: A WARNING indicates a potential for property damage, personal injury, or death.

may be trademarks of their respective owners.

2017 - 02

Rev. A00

Contents

1 Working on your computer............................................................................................................................. 7

Before working inside your computer.............................................................................................................................. 7

Safety instructions............................................................................................................................................................. 7

Recommended tools.......................................................................................................................................................... 8

Turning o your computer................................................................................................................................................ 8

After working inside your computer.................................................................................................................................8

Important Information........................................................................................................................................................8

2 Removing and installing components............................................................................................................. 9

Stand................................................................................................................................................................................... 9

Removing the stand.....................................................................................................................................................9

Installing the stand......................................................................................................................................................10

Cable cover....................................................................................................................................................................... 10

Removing the cable cover.........................................................................................................................................10

Installing the cable cover........................................................................................................................................... 10

Back cover..........................................................................................................................................................................11

Removing the back cover...........................................................................................................................................11

Installing the back cover............................................................................................................................................ 12

Speaker cover................................................................................................................................................................... 12

Removing the speaker cover.....................................................................................................................................12

Installing the speaker cover.......................................................................................................................................14

Hard drive.......................................................................................................................................................................... 14

Removing the hard drive assembly...........................................................................................................................14

Installing the hard drive assembly.............................................................................................................................15

Optical drive...................................................................................................................................................................... 15

Removing the optical drive assembly.......................................................................................................................15

Installing the optical drive assembly......................................................................................................................... 16

System board shield..........................................................................................................................................................17

Removing the system board shield...........................................................................................................................17

Installing the system board shield............................................................................................................................. 17

Memory module................................................................................................................................................................ 18

Removing the memory module.................................................................................................................................18

Installing the memory module................................................................................................................................... 18

Solid State Drive (SSD)....................................................................................................................................................19

Removing the SSD card.............................................................................................................................................19

Installing the SSD card............................................................................................................................................... 19

Coin cell battery............................................................................................................................................................... 20

Removing the coin cell battery.................................................................................................................................20

Installing the coin cell battery................................................................................................................................... 20

WLAN card........................................................................................................................................................................ 21

Removing the WLAN card.........................................................................................................................................21

Installing the WLAN card........................................................................................................................................... 21

Heat sink........................................................................................................................................................................... 22

Contents 3

Removing the heat sink ............................................................................................................................................22

Installing the heat sink...............................................................................................................................................22

Speaker............................................................................................................................................................................. 23

Removing the speaker module................................................................................................................................. 23

Installing the speaker module................................................................................................................................... 24

Power supply unit.............................................................................................................................................................24

Removing the Power Supply Unit (PSU)................................................................................................................24

Installing the Power Supply Unit (PSU).................................................................................................................. 27

VESA mount bracket....................................................................................................................................................... 27

Removing the VESA mount bracket........................................................................................................................ 27

Installing the VESA mount bracket.......................................................................................................................... 28

Converter board...............................................................................................................................................................28

Removing the converter board................................................................................................................................ 28

Installing the converter board...................................................................................................................................29

System fan........................................................................................................................................................................30

Removing the system fan......................................................................................................................................... 30

Installing the system fan........................................................................................................................................... 30

Intrusion switch.................................................................................................................................................................31

Removing the intrusion switch..................................................................................................................................31

Installing the intrusion switch................................................................................................................................... 32

Power and On-Screen Display (OSD) buttons board..................................................................................................32

Removing the power and On-Screen Display (OSD) buttons board...................................................................32

Installing the power and OSD buttons board..........................................................................................................33

Processor.......................................................................................................................................................................... 33

Removing the processor........................................................................................................................................... 33

Installing the processor..............................................................................................................................................34

System board................................................................................................................................................................... 35

Removing the system board.....................................................................................................................................35

Installing the system board....................................................................................................................................... 38

System board layout.................................................................................................................................................. 39

3 Technology and components....................................................................................................................... 40

Processors........................................................................................................................................................................ 40

Skylake — 6th Generation Intel Core processors..................................................................................................40

Kaby Lake — 7th Generation Intel Core processors.............................................................................................. 41

Identifying processors in Windows 10...................................................................................................................... 41

Identifying processors in Windows 7....................................................................................................................... 42

Chipsets............................................................................................................................................................................ 42

Identifying the chipset in Device Manager on Windows 10.................................................................................. 42

Storage options................................................................................................................................................................ 42

Hard drives..................................................................................................................................................................42

Solid State Drives (SSD)........................................................................................................................................... 42

Identifying the hard drive in Windows 10................................................................................................................ 43

Entering BIOS setup.................................................................................................................................................. 43

Memory congurations................................................................................................................................................... 43

Verifying system memory in Windows 10 and Windows 7 ...................................................................................43

DDR4................................................................................................................................................................................. 44

4Contents

Key Specications......................................................................................................................................................44

DDR4 Details...............................................................................................................................................................45

4 System setup...............................................................................................................................................46

Boot Sequence.................................................................................................................................................................46

Navigation keys................................................................................................................................................................ 46

System setup options...................................................................................................................................................... 47

General screen options..............................................................................................................................................47

System conguration screen options...................................................................................................................... 48

Security screen options.............................................................................................................................................49

Secure boot screen options.......................................................................................................................................51

Intel Software Guard Extensions options................................................................................................................52

Performance screen options.................................................................................................................................... 52

Power management screen options........................................................................................................................53

POST behavior screen options.................................................................................................................................54

Virtualization support screen options......................................................................................................................54

Maintenance screen options.................................................................................................................................... 55

System Log screen options...................................................................................................................................... 55

Updating the BIOS ......................................................................................................................................................... 55

System and setup password.......................................................................................................................................... 56

Assigning a system password and setup password...............................................................................................56

Deleting or changing an existing system and/or setup password........................................................................57

5 Troubleshooting your computer................................................................................................................... 58

Enhanced Pre-Boot System Assessment (ePSA) diagnostics...................................................................................58

Running the ePSA diagnostics.................................................................................................................................58

Power supply—built in self test (BIST)........................................................................................................................ 58

LCD built in self test (BIST)............................................................................................................................................59

Invoking BIST with user modes.................................................................................................................................61

OSD toggle.................................................................................................................................................................. 61

ePSA.............................................................................................................................................................................61

6 Technical specications............................................................................................................................... 63

System specications......................................................................................................................................................63

Memory specications.................................................................................................................................................... 63

Video specications.........................................................................................................................................................64

Audio specications......................................................................................................................................................... 64

Communication specications........................................................................................................................................64

Cards specications.........................................................................................................................................................65

Display specications.......................................................................................................................................................65

Drives specications........................................................................................................................................................65

Port and connector specications.................................................................................................................................65

Power specications....................................................................................................................................................... 65

Camera (optional) specications................................................................................................................................... 66

Stand specications........................................................................................................................................................ 66

Physical specications.....................................................................................................................................................66

Contents 5

Environmental specications..........................................................................................................................................66

7 Contacting Dell............................................................................................................................................ 68

6 Contents

Working on your computer

Before working inside your computer

To avoid damaging your computer, perform the following steps before you begin working inside the computer.

1 Ensure that you follow the Safety instructions.

2 Ensure that your work surface is at and clean to prevent the computer cover from being scratched.

3 Turn o your computer.

CAUTION: To disconnect a network cable, rst unplug the cable from your computer and then unplug the cable from

the network device.

4 Disconnect all network cables from the computer.

5 Disconnect your computer and all attached devices from their electrical outlets.

6 Press and hold the power button while the computer is unplugged to ground the system board.

7 Remove the cover.

CAUTION: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface,

such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to

dissipate static electricity, which could harm internal components.

Safety instructions

Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless otherwise

noted, each procedure included in this document assumes that the following conditions exist:

• You have read the safety information that shipped with your computer.

• A component can be replaced or, if purchased separately, installed by performing the removal procedure in reverse order.

WARNING: Disconnect all power sources before opening the computer cover or panels. After you nish working inside the

computer, replace all covers, panels, and screws before connecting to the power source.

WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional

safety best practices information, see the Regulatory Compliance Homepage at www.Dell.com/regulatory_compliance

CAUTION: Many repairs may only be done by a certied service technician. You should only perform troubleshooting and simple

repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage

due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came

with the product.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an

unpainted metal surface, such as a connector on the back of the computer.

CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by its

edges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by its pins.

CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have

connectors with locking tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the

cable. As you pull connectors apart, keep them evenly aligned to avoid bending any connector pins. Also, before you connect a

cable, ensure that both connectors are correctly oriented and aligned.

NOTE: The color of your computer and certain components may appear dierently than shown in this document.

Working on your computer 7

Recommended tools

The procedures in this document require the following tools:

• Small at blade screwdriver

• Phillips # 1 screwdriver

• Small plastic scribe

• Hex screwdriver

Turning o your computer

After working inside your computer

After you complete any replacement procedure, ensure that you connect any external devices, cards, and cables before turning on your

computer.

1 Replace the cover.

CAUTION: To connect a network cable, rst plug the cable into the network device and then plug it into the

computer.

2 Connect any telephone or network cables to your computer.

3 Connect your computer and all attached devices to their electrical outlets.

4 Turn on your computer.

5 If required, verify that the computer works correctly by running ePSA diagnostics.

Important Information

NOTE: Avoid using the touchscreen in dusty, hot, or humid environments.

NOTE: Sudden change in temperature may cause condensation on the inner surface of the glass screen, which will disappear

after a short time and does not aect normal usage.

8 Working on your computer

Removing and installing components

This section provides detailed information on how to remove or install the components from your computer.

Stand

Removing the stand

1 Follow the procedure in Before working inside your computer.

2 Place the computer on a at surface with the display facing downward.

3 To remove the stand:

a Press the tab on the cover to release the stand [1].

b Lift the stand upward [2].

Removing and installing components 9

Installing the stand

1 Align the stand and slide it on the back of the computer.

2 Press the stand down till it snaps in.

3 Follow the procedure in After working inside your computer.

Cable cover

Removing the cable cover

1 Follow the procedure in Before working inside your computer.

2 Remove the stand.

3 To remove the cable cover:

a Remove the screw that secures the cable cover to the computer [1].

b Push the release tabs to release the cable cover [2].

c Lift the cable cover away from the computer [3].

Installing the cable cover

1 Align the notches on the cable cover to the holes on the computer and press the cable cover until it snaps in.

2 Tighten the screw to secure the cable cover to the computer.

3 Install the stand.

10 Removing and installing components

4 Follow the procedure in After working inside your computer.

Back cover

Removing the back cover

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bcable cover

3 Pry the edges of the back cover from the bottom to release it from the computer.

4 Lift the back cover from the computer.

Removing and installing components 11

Installing the back cover

1 Align the notches on the back cover to the holes on the computer, and press the back cover until it snaps in.

2 Install the:

acable cover

bstand

3 Follow the procedure in After working inside your computer.

Speaker cover

Removing the speaker cover

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bcable cover

cback cover

3 Remove the screws that secure the speaker cover to the computer.

12 Removing and installing components

4 Slide and remove the speaker cover from the computer.

Removing and installing components 13

Installing the speaker cover

1 Align the speaker cover to its position on the back of the computer.

2 Tighten the screws to secure the speaker cover to the computer.

3 Install the:

aback cover

bcable cover

cstand

4 Follow the procedure in After Working Inside Your Computer.

Hard drive

Removing the hard drive assembly

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bback cover

3 To remove the hard drive assembly:

a Press the tab on the bracket, and slide the hard-drive assembly until the tabs are released from either side of the assembly [1].

b Slide the hard-drive assembly upwards to remove it from the computer [2].

14 Removing and installing components

4 To remove the hard drive bracket:

a Pry the edges of the bracket to release the hard drive [1].

b Slide the hard drive and lift it away from the bracket [2].

Installing the hard drive assembly

1 Align the hard drive until the notches are aligned and the hard drive is secured in the bracket.

2 Place the hard drive on the hard drive cage until the notches are aligned and it snaps in.

3 Install the:

aback cover

bstand

4 Follow the procedure in After working inside your computer.

Optical drive

Removing the optical drive assembly

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bback cover

3 To remove the optical drive assembly:

a Press the securing tab at the base of the drive to release the optical drive assembly [1].

b Slide the optical drive assembly to remove it away from the computer [2].

Removing and installing components 15

4 To remove the optical drive bracket:

a Remove the screws that secure the optical drive bracket [1].

b Remove the bracket away from the optical drive [2].

Installing the optical drive assembly

1 Place the bracket to align the screw holders on the optical drive.

2 Tighten the screws to secure the bracket to the optical drive.

3 Insert the optical drive assembly into the drive slot, until it snaps in.

4 Install the:

16 Removing and installing components

aback cover

bstand

5 Follow the procedure in After working inside your computer.

System board shield

Removing the system board shield

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bback cover

3 To remove the system board shield:

a Press the securing tab to release the system board shield from the slots on the computer [1].

b Slide the system board shield away from the computer [2].

Installing the system board shield

1 Align and slide the system board shield until it snaps in.

2 Install the:

aback cover

bstand

Removing and installing components 17

3 Follow the procedure in After working inside your computer.

Memory module

Removing the memory module

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bback cover

csystem board shield

3 To remove the memory module:

a Pry the retention clips away from the memory module until it pops up [1].

b Lift the memory module from the connector [2].

Installing the memory module

1 Insert the memory module on the memory connector until the clips secure the memory module.

2 Install the:

asystem board shield

bback cover

cstand

3 Follow the procedure in After working inside your computer.

18 Removing and installing components

Solid State Drive (SSD)

Removing the SSD card

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bback cover

csystem board shield

3 To remove the SSD card:

a Remove the screw that secures the SSD card to the computer [1].

b Lift the SSD card away from the connector [2].

Installing the SSD card

1 Insert the SSD card into the connector.

2 Tighten the screw to secure the SSD card to the system board.

3 Install the:

asystem board shield

bback cover

cstand

4 Follow the procedure in After working inside your computer.

Removing and installing components 19

Coin cell battery

Removing the coin cell battery

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bback cover

csystem board shield

3 Press the latch to release the coin cell battery and remove it from the computer.

Installing the coin cell battery

1 Insert the coin cell battery into the slot on the system board until it ts securely.

2 Install the:

asystem board shield

bback cover

cstand

3 Follow the procedure in After working inside your computer.

20 Removing and installing components

WLAN card

Removing the WLAN card

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bback cover

csystem board shield

3 To remove the WLAN card:

a Disconnect the antenna cables from the connectors on the WLAN card [1].

b Remove the screw that secures the WLAN card to the system board [2].

c Hold the WLAN card and pull it from the connector on the system board [3].

Installing the WLAN card

1 Align the WLAN card to the connector on the system board.

2 Tighten the screw to secure the WLAN card to the system board.

3 Connect the antenna cables to the connectors on the WLAN card.

4 Install the:

asystem board shield

bback cover

cstand

5 Follow the procedure in After working inside your computer.

Removing and installing components 21

Heat sink

Removing the heat sink

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bback cover

csystem board shield

3 To remove the heat sink:

a Remove the screws that secure the heat sink to the chassis [1, 2].

b Lift the heat sink away from the computer [3].

Installing the heat sink

1 Align and place the heat sink in the slot.

2 Tighten the screws to secure the heat sink to the computer.

3 Install the:

asystem board shield

bback cover

cstand

4 Follow the procedure in After working inside your computer.

22 Removing and installing components

Speaker

Removing the speaker module

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bback cover

ccable cover

dspeaker cover

esystem board shield

3 To release the speaker module:

a Disconnect the speaker cable from the connector on the system board [1].

b Unthread the speaker cables from the retention clips [2].

4 To remove the speaker module:

a Remove the screws that secure the speaker module to the chassis [1].

b Lift the speaker module and remove it from the chassis [2].

Removing and installing components 23

Installing the speaker module

1 Insert the speaker module into the slot on the chassis.

2 Tighten the screws to secure the speaker to the chassis.

3 Secure the speaker cables through the retention clips.

4 Connect the speaker cable to the connector on the system board.

5 Install the:

asystem board shield

bspeaker cover

cback cover

dcable cover

estand

6 Follow the procedure in After working inside your computer.

Power supply unit

Removing the Power Supply Unit (PSU)

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bback cover

ccable cover

dspeaker cover

esystem board shield

24 Removing and installing components

3 To release the PSU cable:

a Unthread the power supply cables from the retention clips in the chassis [1].

b Disconnect the power supply cable from the connector on the system board [2].

4 To release the PSU:

a Remove the screw that secures the power supply socket to the chassis [1].

b Slide the socket to remove it from the computer [2].

Removing and installing components 25

5 To remove the PSU:

a Remove the screw that secure the PSU to the chassis [1].

b Slide the PSU and lift it away from the chassis [2].

26 Removing and installing components

Installing the Power Supply Unit (PSU)

1 Place the PSU on the chassis.

2 Tighten the screw to secure the PSU to the chassis.

3 Place the power supply socket in the slot on the chassis.

4 Tighten the screw to secure the power supply socket to the chassis.

5 Secure the power supply cable on the retention clips in the chassis.

6 Connect the power supply cables to the connectors on the system board.

7 Install the:

asystem board shield

bspeaker cover

ccable cover

dback cover

estand

8 Follow the procedure in After working inside your computer.

VESA mount bracket

Removing the VESA mount bracket

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bback cover

ccable cover

dspeaker cover

esystem board shield

fpower supply unit

3 To remove the VESA mount bracket:

a Remove the screws that secure the VESA mount bracket to the computer [1].

b Lift the bracket away from the computer [2].

Removing and installing components 27

Installing the VESA mount bracket

1 Align and place the bracket in the slot on the computer.

2 Tighten the screws that secure the VESA mount bracket to the computer.

3 Install the:

apower supply unit

bsystem board shield

cspeaker cover

dcable cover

eback cover

fstand

4 Follow the procedure in After working inside your computer.

Converter board

Removing the converter board

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bback cover

ccable cover

dspeaker cover

esystem board shield

fpower supply unit

28 Removing and installing components

gVESA mount bracket

3 To remove the converter board:

a Disconnect the convertor board cable from the converter board [1].

b Disconnect the display backlight cable from the converter board [2].

c Remove the screws that secure the converter board to the computer [3].

d Lift the converter board away from the computer [4].

Installing the converter board

1 Place the convertor board in the slot.

2 Tighten the screws to secure the converter board to the chassis.

3 Connect the converter board cable and display backlight cable to the connectors on the converter board.

4 Install the:

aVESA mount bracket

bpower supply unit

csystem board shield

dspeaker cover

ecable cover

fback cover

gstand

5 Follow the procedure in After working inside your computer.

Removing and installing components 29

System fan

Removing the system fan

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bback cover

ccable cover

dspeaker cover

esystem board shield

fpower supply unit

gVESA mount bracket

3 To remove the system fan:

a Disconnect the system fan cable from the connector on the system board [1].

b Remove the screws that secure the system fan to the computer [2].

c Lift the system fan away from the computer [3].

Installing the system fan

1 Align and place the system fan in the slot on the chassis.

2 Tighten the screws to secure the system fan to the system board.

30 Removing and installing components

3 Connect the system fan cable to the connector on the system board.

4 Install the:

aVESA mount bracket

bpower supply unit

csystem board shield

dspeaker cover

ecable cover

fback cover

gstand

5 Follow the procedure in After working inside your computer.

Intrusion switch

Removing the intrusion switch

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bback cover

ccable cover

dspeaker cover

esystem board shield

fpower supply unit

gVESA mount bracket

3 To remove the intrusion switch:

a Disconnect the intrusion switch cable from the connector on the system board [1].

b Unthread the intrusion switch cable from the retention clips on the computer [2].

c Remove the screw that secures the intrusion switch to the computer [3].

d Slide and lift the intrusion switch away from the computer [4].

Removing and installing components 31

Installing the intrusion switch

1 Place the intrusion switch in the slot on the computer.

2 Tighten the screw to secure the intrusion switch to the chassis.

3 Route intrusion switch cable along the retention clips on the chassis.

4 Connect the intrusion switch cable to the connector on the system board.

5 Install:

aVESA mount bracket

bpower supply unit

csystem board shield

dspeaker cover

ecable cover

fback cover

gstand

6 Follow the procedures in After working inside your computer.

Power and On-Screen Display (OSD) buttons board

Removing the power and On-Screen Display (OSD) buttons

board

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bback cover

3 To remove the power and OSD buttons board:

a Remove the screw to remove the metal plate that secures the power and OSD buttons board to the computer [1].

b Peel o the tape from the OSD buttons board [2].

c Remove the power and OSD buttons board from the chassis.

d Disconnect the cables from the power and OSD buttons board to release the board from the computer [3].

32 Removing and installing components

Installing the power and OSD buttons board

1 Connect the cable to the power and OSD buttons board.

2 Ax the tape on the OSD buttons board.

3 Insert the power and OSD buttons board into the slot.

4 Align the metal plate on the power and OSD buttons board.

5 Tighten the screw to secure the power and OSD buttons board.

6 Install the:

aback cover

bstand

7 Follow the procedure in After working inside your computer.

Processor

Removing the processor

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bback cover

ccable cover

dspeaker cover

espeaker

fVESA mount bracket

gsystem board shield

Removing and installing components 33

hSSD card

iWLAN card

jmemory

kheat sink

lsystem fan

3 To remove the processor:

a Release the socket lever by pushing the lever down and out from under the tab on the processor shield [1].

b Lift the lever upward and lift the processor shield [2].

CAUTION: The processor socket pins are fragile and can be permanently damaged. Be careful not to bend

the pins in the processor socket when removing the processor out of the socket.

c Lift the processor out of the socket [3].

NOTE: After removing the processor, place it in an antistatic container for reuse, return, or temporary

storage. Do not touch the bottom of the processor to avoid damage to the processor contacts. Touch only

the side edges of the processor.

Installing the processor

1 Align the processor with the socket keys.

CAUTION: Do not use force to seat the processor. When the processor is positioned correctly, it engages easily into the

socket.

2 Align the pin-1 indicator of the processor with the triangle on the socket.

3 Place the processor on the socket such that the slots on the processor align with the socket keys.

4 Close the processor shield by sliding it under the retention screw.

5 Lower the socket lever and push it under the tab to lock it.

6 Install:

asystem fan

bheat sink

cmemory

dWLAN card

eSSD card

fsystem board shield

gVESA mount bracket

hcable cover

ispeaker

jspeaker cover

kback cover

lstand

7 Follow the procedure in After working inside your computer.

34 Removing and installing components

System board

Removing the system board

1 Follow the procedure in Before working inside your computer.

2 Remove the:

astand

bback cover

ccable cover

dspeaker cover

espeaker

fhard drive

goptical drive

hVESA mount bracket

isystem board shield

jSSD card

kWLAN card

lmemory

mheat sink

nsystem fan

oprocessor

pcoin cell battery

qpower supply unit

3 Disconnect the following cables from the system board:

a display [1]

b system fan [2]

c SATA [3]

d intrusion switch [4]

e hard drive and optical drive [5]

f speaker [6]

g camera and microphone [7]

Removing and installing components 35

4 Remove the screws that secure the system board to the chassis.

36 Removing and installing components

5 Slide and lift the system board to remove it from the computer.

Removing and installing components 37

Installing the system board

1 Place the system board on the computer.

2 Connect all the cables to the system board.

3 Tighten the screws to secure the system board to the base panel.

4 Install the:

apower supply unit

bcoin cell battery

csystem fan

dprocessor

eheat sink

fmemory

gWLAN card

hSSD card

isystem board shield

jVESA mount bracket

koptical drive

lhard drive

mcable cover

nspeaker

ospeaker cover

pback cover

qstand

5 Follow the procedure in After working inside your computer.

38 Removing and installing components

System board layout

1 LVDS connector 2 Camera connector

3 Antenna wire clip 4 WLAN connector

5 Jumper connector 6 Coin cell battery

7 Speaker connector 8 Memory module connector

9 Jumper connector 10 M.2 SSD slot

11 Optical drive connector 12 Intrusion switch connector

13 Hard drive connector 14 Side buttons connector

15 Touchpad connector 16 CAC/PIV connector (reserved)

17 Converter board connector 18 Windows serial debug connector

19 HDD/ODD power connector 20 LPC debug connector

21 APS debug connector 22 Power supply connector

23 CPU fan connector 24 CPU socket

Removing and installing components 39

Technology and components

This chapter details the technology and components available in the systems.

Topics:

• Processors

• Chipsets

• Storage options

• Memory congurations

• DDR4

Processors

Processor numbers are not a measure of performance. Processor availability is subject to change and may vary by region or country. The

following table lists the processors that are supported in OptiPlex 5250 AIO:

Table 1. 7th generation Intel Processors (Support for Windows 10/ Linux Only)

Intel Pentium G4560 Processor (Dual Core/ 3MB/ 2T/ 3.5GHz/ 54W)

Intel Core i3-7100 Processor (Dual Core/ 3MB/ 4T/ 3.9GHz/ 51W)

Intel Core i5-7500 Processor (Quad Core/ 6MB/ 4T/ 3.4GHz/ 65W)

Intel Core i5-7600 Processor (Quad Core/ 6MB/ 4T/ 3.5GHz/ 65W)

Intel Core i7-7700 Processor (Quad Core/ 8MB/ 8T/ 3.6GHz/ 65W)

Table 2. 6th generation Intel Processors (Support for Windows 7/ 8.1/ 10/ Linux)

Intel Pentium G4400 Processor (Dual Core/ 3MB/ 2T/ 3.3GHz/

47W)

Intel Core i3-6100 Processor (Dual Core/ 3MB/ 4T/ 3.7GHz/ 47W)

Intel Core i5-6500 Processor (Quad Core/ 6MB/ 4T/ 3.2GHz/

65W)

Intel Core i5-6600 Processor (Quad Core/ 6MB/ 4T/ 3.3GHz/

65W)

Intel Core i7-6700 Processor (Quad Core/ 8MB/ 8T/ 3.4GHz/

65W)

Skylake — 6th Generation Intel Core processors

Intel Skylake is the successor to the Intel Broadwell processor. It is a micro architecture redesign using an existing process technology and it

is branded as Intel 6th generation Core. Like Broadwell, Skylake is available in four variants with suxes SKL-Y, SKL-H, SKL-U, and SKL-S.

The Skylake also includes Core i7, i5, i3, and Pentium, processors.

40 Technology and components

Skylake specications

Table 3. Skylake specications for OptiPlex 5250 AIO

Processor number Clock Speed Cache No. of cores/No. of threads Power

Intel Pentium G4400 3.3 GHz 3 MB 4/4 47 W

Intel Core i3-6100 3.7 GHz 3 MB 4/4 47 W

Intel Core i5-6500 3.2 GHz 6 MB 4/4 65 W

Intel Core i5-6600 3.3 GHz 6 MB 4/4 65 W

Intel Core i7-6700 3.4 GHz 8 MB 4/4 65 W

Kaby Lake — 7th Generation Intel Core processors

The 7th Gen Intel Core processor (Kaby Lake) family is the successor of 6th generation processors (Skylake). Its main features include:

• Intel 14 nm Manufacturing Process Technology

• Intel Turbo Boost Technology

• Intel Hyper Threading Technology

• Intel Built-in Visuals

• Intel HD graphics - exceptional videos, editing smallest details in the videos

• Intel Quick Sync Video - excellent video conferencing capability, quick video editing and authoring

• Intel Clear Video HD - visual quality and color delity enhancements for HD playback and immersing web browsing

• Integrated memory controller

• Intel Smart Cache

• Optional Intel vPro technology (on i5/i7) with Active Management Technology 11.6

• Intel Rapid Storage Technology

Kaby Lake specications

Table 4. Kaby Lake specications

Processor number Clock Speed Cache No. of cores/No. of threads Power

Intel Pentium G4560 3,5 GHz 3 MB 4/4 54 W

Intel Core i3-7100 3.9 GHz 3 MB 4/4 51 W

Intel Core i5-7500 3.4 GHz 6 MB 4/4 65 W

Intel Core i5-7600 3.5 GHz 6 MB 4/4 65 W

Intel Core i7-7700 3.6 GHz 8 MB 8 65 W

Identifying processors in Windows 10

1 Tap Search the Web and Windows.

2 Type Device Manager.

Technology and components 41

3 Tap Processor.

Identifying processors in Windows 7

1 Click Start > Control Panel > Device Manager.

2 Select Processor.

Chipsets

All laptops or notebook communicate with the CPU through the chipset. This laptop is shipped with the Intel 100 Series chipset .

Identifying the chipset in Device Manager on Windows 10

1 Click All Settings on the Windows 10 Charms Bar.

2 From the Control Panel, select Device Manager.

3 Expand System Devices and search for the chipset.

Storage options

This topic details the supported storage options.

Hard drives

Table 5. Hard drive

• 2.5" 500 GB SATA 5400 RPM Hard Disk Drive

• 2.5" 500 GB SATA 7200 RPM Hard Disk Drive

• 2.5" 500 GB SATA 5400 RPM Solid State Hybrid Drive with 8

GB Flash

• 2.5" 500 GB SATA 7200 RPM Self Encrypting Drive (OPAL

FIPS)

• 2.5" 1.0 TB SATA 7200 RPM Hard Disk Drive

• 2.5" 1.0 TB SATA 5400 RPM Solid State Hybrid Drive w/ 8GB

Flash

• 2.5" 2.0 TB SATA 5400 RPM Hard Disk Drive

Solid State Drives (SSD)

Table 6. SSD

• 2.5" 256 GB SATA Solid State Drive Class 20

• 2.5" 512 GB SATA Solid State Drive Class 20

• M.2 128 GB SATA Solid State Drive Class 20

• M.2 256 GB PCIe NVMe Solid State Drive Class 40

• M.2 256 GB PCIe NVMe Self Encrypting Solid State Drive Class

42 Technology and components

• M.2 512 GB PCIe NVMe Solid State DriveClass 40

• M.2 1 TB PCIe NVMe Solid State Drive Class 40

Identifying the hard drive in Windows 10

1 Click All Settings on the Windows 10 Charms Bar.

2 Click Control Panel, select Device Manager, and expand Disk drives.

The hard drive is listed under Disk drives.

Entering BIOS setup

1 Turn on or restart your laptop.

2 When the Dell logo appears, perform one of the following actions to enter the BIOS setup program:

• With keyboard — Tap F2 until the Entering BIOS setup message appears. To enter the Boot selection menu, tap F12.

Hard drive is listed under the System Information under the General group.

Memory congurations

The supported memory congurations for are as follows:

• 2GB DDR4, 2400MHz, (1 x 2GB)- Linux operating system only

• 4GB DDR4, 2400MHz, (1 x 4GB)

• 8GB DDR4, 2400MHz, (1 x 8GB)

• 8GB DDR4, 2400MHz, (2 x 4GB)

• 16GB DDR4, 2400MHz, (2 x 8GB)

• 32GB DDR4, 2400MHz, (2 x 16GB)

NOTE: If this computer is purchased with Intel 6th Generation CPUs, the maximum MHz the computer can achieve is 2133.

Verifying system memory in Windows 10 and Windows 7

Windows 10

1 Click the Windows button and select All Settings > System.

2 Under System, click About.

Windows 7

• Click Start → Control Panel → System.

Technology and components 43

DDR4

DDR4 (double data rate fourth generation) memory is a higher-speed successor to the DDR2 and DDR3 technologies and allows up to 512

GB in capacity, compared to the DDR3's maximum capacity of 128 GB per DIMM. DDR4 synchronous dynamic random-access memory is

keyed dierently from both SDRAM and DDR to prevent the user from installing the wrong type of memory into the system.

DDR4 needs 20 percent less or just 1.2 volts, compared to DDR3 which requires 1.5 volts of electrical power to operate. DDR4 also supports

a new, deep power-down mode that allows the host device to go into standby without needing to refresh its memory. Deep power-down

mode is expected to reduce standby power consumption by 40 to 50 percent.

Key Specications

The following table lists the specications' comparison between DDR3 and DDR4:

Table 7. DDR3 vs DDR4

Feature/Option DDR3 DDR4 DDR 4 Advantages

Chip Densities 512 Mb-8 Gb 4 Gb-16 Gb Larger DIMM capacities

Data rates 800 Mb/s-2133 Mb/s 1600 Mb/s-3200 Mb/s Migration to higher speed I/O

Voltage 1.5 V 1.2 V Reduced memory power

demand

Low voltage standard Yes (DDR3L at 1.35V) Anticipated at 1.05V Memory Power Reductions

Internal banks 8 16 Higher data rates

Bank groups (BG) 0 4 Faster burst accesses

VREF inputs 2 —DQs and CMD/ADDR 1 — CMD/ADDR VREFDQ Now Internal

tCK — DLL Enabled 300 Mhz-800 Mhz 667Mhz-1.6Ghz Higher data rates

tCK — DLL Disabled 10MHz – 125MHz (optional) Undened to 125MHz DLL-o now fully supported

Read Latency AL+CL AL+CL Expanded values

Write Latency AL+CWL AL+CWL Expanded values

DQ Driver (ALT) 40&Omega 48&Omega Optimal for PtP Applications

DQ Bus SSTL15 POD12 Less I/O Noise and Power

RTT Values (in &Omega) 120,60,40,30,20 240,120,80,60,48,40,34 Support for higher data rates

RTT not allowed READ Bursts Disables during READ Bursts Ease of use

ODT Modes Nominal, Dynamic Nominal, Dynamic,Park Add’l Control Mode; OTF Value

Change

ODT Control ODT Signaling Required ODT Signaling Not Required Ease of ODT Control; Allows

Non-ODT Routing, PtP Apps

Multi-Purpose Register Four Registers – 1 Dened, 3

RFU

Four Registers – 3 Dened, 1

RFU

Provides Additional Specialty

Readout

DIMM Types RDIMM, LRDIMM, UDIMM,

SODIMM

RDIMM, LRDIMM, UDIMM,

SODIMM

DIMM Pins 240 (R, LR, U); 204 (SODIMM) 288 (R, LR, U); 260 (SODIMM)

44 Technology and components

Feature/Option DDR3 DDR4 DDR 4 Advantages

RAS ECC CRC, Parity, Addressability, GDM More RAS features; improved

data integrity

DDR4 Details

There are subtle dierences between DDR3 and DDR4 memory modules, as listed below.

Key notch dierence

The key notch on a DDR4 module is in a dierent location from the key notch on a DDR3 module. Both notches are on the insertion edge,

but the notch location on the DDR4 is slightly dierent, to prevent the module from being installed into an incompatible board or platform.

Figure 1. Notch dierence

Increased thickness

DDR4 modules are slightly thicker than DDR3, to accommodate more signal layers.

Figure 2. Thickness dierence

Curved edge

DDR4 modules feature a curved edge to help with insertion and alleviate stress on the PCB during memory installation.

Figure 3. Curved edge

Technology and components 45

System setup

System Setup enables you to manage your computer hardware and specify BIOS level options. From the System Setup, you can:

• Change the NVRAM settings after you add or remove hardware

• View the system hardware conguration

• Enable or disable integrated devices

• Set performance and power management thresholds

• Manage your computer security

Topics:

• Boot Sequence

• Navigation keys

• System setup options

• Updating the BIOS

• System and setup password

Boot Sequence

Boot Sequence allows you to bypass the System Setup–dened boot device order and boot directly to a specic device (for example:

optical drive or hard drive). During the Power-on Self Test (POST), when the Dell logo appears. you can:

• Access System Setup by pressing F2 key

• Bring up the one-time boot menu by pressing F12 key

The one-time boot menu displays the devices that you can boot from including the diagnostic option. The boot menu options are:

• Removable Drive (if available)

• STXXXX Drive

NOTE: XXX denotes the SATA drive number.

• Optical Drive (if available)

• Diagnostics

NOTE: Choosing Diagnostics, will display the ePSA diagnostics screen.

The boot sequence screen also displays the option to access the System Setup screen.

Navigation keys

NOTE: For most of the System Setup options, changes that you make are recorded but do not take eect until you restart the

system.

Keys Navigation

Up arrow Moves to the previous eld.

46 System setup

Keys Navigation

Down arrow Moves to the next eld.

Enter Selects a value in the selected eld (if applicable) or follow the link in the eld.

Spacebar Expands or collapses a drop‐down list, if applicable.

Tab Moves to the next focus area.

NOTE: For the standard graphics browser only.

Esc Moves to the previous page until you view the main screen. Pressing Esc in the main screen displays a message

that prompts you to save any unsaved changes and restarts the system.

F1 Displays the System Setup help le.

System setup options

NOTE: Depending on the computer and its installed devices, the items listed in this section may or may not appear.

System setup options

NOTE: Depending on the computer and its installed devices, the items listed in this section may or may not appear.

General screen options

This section lists the primary hardware features of your computer.

Option Description

System Information This section lists the primary hardware features of your computer.

• System Information: Displays BIOS Version, Service Tag, Asset Tag, Ownership Tag, Ownership Date,

Manufacture Date, and the Express Service Code.

• Memory Information: Displays Memory Installed, Memory Available, Memory Speed, Memory Channels Mode,

Memory Technology, DIMM 1 Size, DIMM 2 Size,

• PCI Information: Displays SLOT 1 and SLOT_M.2

• Processor Information: Displays Processor Type, Core Count, Processor ID, Current Clock Speed, Minimum

Clock Speed, Maximum Clock Speed, Processor L2 Cache, Processor L3 Cache, HT Capable, and 64-Bit

Technology.

• Device Information: Displays Primary Hard Drive, M.2 SATA2, M.2 SATA, M.2 PCIe SSD-0, LOM MAC Address,

Video Controller, Video BIOS Version, Video Memory, Panel Type, Native Resolution, Audio Controller, Wi-Fi

Device, WiGig Device, Cellular Device, Bluetooth Device.

Battery Information Displays the battery status and the type of AC adapter connected to the computer.

Boot Sequence Allows you to change the order in which the computer attempts to nd an operating system.

• Diskette Drive

• Internal HDD

• USB Storage Device

• CD/DVD/CD-RW Drive

• Onboard NIC

Advanced Boot

Options

This option allows you the legacy option ROMs to load. By default, the Enable Legacy Option ROMs is disabled.

System setup 47

Option Description

UEFI Booth Path

Security

This options controls whether or not the system will prompt the user to enter the Admin password when booting a

UEFI boot path from the F12 Boot Menu.

• Always, Except Internal HDD

• Always

• Never: This option is enabled by default.

Date/Time Allows you to change the date and time.

System conguration screen options

Option Description

Integrated NIC If you enable UEFI network stack, UEFI network protocols will be available. UEFI network allows pre-os and early os

networking features to use NICs that are enabled. This may be used without PXE turned on. When you enable

Enabled w/PXE, the type of PXE boot (Legacy PXE or UEFI PXE) depends on the current boot mode and type of

option ROMs in use. The UEFI Network Stack is required in order to have UEFI PXE functionality fully enabled.

• Enabled UEFI Network Stack - This option is disabled by default.

Allows you to congure the integrated network controller. The options are:

• Disabled

• Enabled

• Enabled w/PXE: This option is enabled by default.

NOTE: Depending on the computer and its installed devices, the items listed in this section may or may

not appear.

SATA Operation Allows you to congure the internal SATA hard-drive controller. The options are:

• Disabled

• AHCI: This option is enabled by default.

Drives Allows you to congure the SATA drives on board. All drives are enabled by default. The options are:

• SATA-0

• SATA-1

• SATA-2

• SATA-3

• SATA-4

SMART Reporting This eld controls whether hard drive errors for integrated drives are reported during system startup. This

technology is part of the SMART (Self Monitoring Analysis and Reporting Technology) specication. This option is

disabled by default.

• Enable SMART Reporting

USB Conguration This eld congures the integrated USB controller. If Boot Support is enabled, the system is allowed to boot any

type of USB Mass Storage Devices (HDD, memory key, oppy).

If USB port is enabled, device attached to this port is enabled and available for OS.

48 System setup

Option Description

If USB port is disabled, the OS cannot see any device attached to this port.

The options are:

• Enable Boot Support

• Enable Rear USB Ports: Include options for 6 ports

• Enable Front USB Ports: Include options for 2 ports

All the options are enabled by default.

NOTE: USB keyboard and mouse always work in the BIOS setup irrespective of these settings.

Side USB

Conguration

This eld allows you to enable or disable side USB ports.

• Side Port1 (Top)

• Side Port2 (Bottom)

Rear USB

Conguration

This eld allows you to enable or disable rear USB ports.

• Rear Port (Rear Right)

• Rear Port 2 (Front Right)

• Rear Port 3 (Rear Left) (Rear Port 4 (Front Left))

Audio This eld enables or disables the integrated audio controller. By default, the Enable Audio option is selected. The

options are:

• Enable Microphone (by default enable)

• Enable Internal Speaker (by default enable)

OSD Button

Management

This eld allows you to enable or disable the OSD (On-Screen Display) buttons on the All-In-One system.

This option is disabled by default.

Touchscreen This option allows you to enable or disable touchscreen.

Miscellaneous

Devices

Allows you to enable or disable the following devices:

• Enable PCI Slot (enabled by default)

• Enable Secure Digital (SD) card (enabled by default)

• Secure Digital (SD) Card Boot

Security screen options

Option Description

Admin Password Allows you to set, change, or delete the administrator (admin) password.

NOTE: You must set the admin password before you set the system or hard drive password. Deleting

the admin password automatically deletes the system password and the hard drive password.

NOTE: Successful password changes take eect immediately.

System setup 49

Option Description

Default setting: Not set

System Password Allows you to set, change or delete the system password.

NOTE: Successful password changes take eect immediately.

Default setting: Not set

Strong Password Allows you to enforce the option to always set strong passwords.

Default Setting: Enable Strong Password is not selected.

NOTE: If Strong Password is enabled, Admin and System passwords must contain at least one

uppercase character, one lowercase character and be at least 8 characters long.

Password

Conguration

Allows you to determine the minimum and maximum length of Administrator and System passwords.

Password Bypass Allows you to enable or disable the permission to bypass the System and the Internal HDD password, when they

are set. The options are:

• Disabled

• Reboot bypass

Default setting: Disabled

Password Change Allows you to enable the disable permission to the System and Hard Drive passwords when the admin password is

set.

Default setting: Allow Non-Admin Password Changes is selected.

UEFI Capsule

Firmware Updates

This option controls whether the system allows BIOS updates through UEFI capsule update packages.

NOTE: Disabling this option will block the BIOS updates from services such as Microsoft Windows

Update and Linux Vendor Firmware Service (LVFS).

This option is enabled by default.

TPM 2.0 Security Allows you to enable the Trusted Platform Module (TPM) during POST. This option is enabled by default. The

options are:

• TPM On

• Clear

• PPI Bypass for Enabled Commands

• PPI Bypass for Disabled Commands

NOTE: Activation, deactivation, and clear options are not aected if you load the setup program's

default values. Changes to this option take eect immediately.

Computrace Allows you to activate or disable the optional Computrace software The options are:

• Deactivate

• Disable

• Activate

NOTE: The Activate and Disable options will permanently activate or disable the feature and no further

changes will be allowed

50 System setup

Option Description

Default setting: Deactivate

Chassis Intrusion This eld controls the chassis intrusion feature. The options are:

• Enabled

• Disabled

• On-slient

Default Setting: Disabled

OROM Keyboard

Access

Allows you to set an option to enter the Option ROM Conguration screens using hotkeys during boot. The options

are:

• Enabled

• One Time Enable

• Disabled

Default Setting: Enabled

Admin Setup

Lockout

Allows you to enable or disable the option to enter setup when an admin password is set.

• Enable Admin Setup Lockout - This option is disabled by default.

Master Password

Lockout

If enabled, this option disables the master password support. The Hard Disk passwords need to be cleared before

the setting can be changed. Default setting: Disabled

Secure boot screen options

Option Description

Secure Boot Enable This option enables or disables the Secure Boot feature.

• Disabled

• Enabled

Default setting: Enabled.

Expert Key

Management

Allows you to manipulate the security key databases only if the system is in Custom Mode. The Enable Custom

Mode option is disabled by default. The options are:

• PK

• KEK

• db

• dbx

If you enable the Custom Mode, the relevant options for PK, KEK, db, and dbx appear. The options are:

•Save to File—Saves the key to a user-selected le

•Replace from File—Replaces the current key with a key from a user-selected le

•Append from File—Adds a key to the current database from a user-selected le

•Delete—Deletes the selected key

•Reset All Keys—Resets to default setting

•Delete All Keys—Deletes all the keys

System setup 51

Option Description

NOTE: If you disable the Custom Mode, all the changes made will be erased and the keys will restore to

default settings.

Intel Software Guard Extensions options

Option Description

Intel SGX Enable Allows you to enable or disable the Intel Software Guard Extensions to provide a secured environment for running

code/storing sensitive information in the context of the main operating system.

• Disabled (default)

• Enabled

Enclave Memory

Size

Allows you to set the Intel SGX Enclave Reserve Memory Size.

• 32 MB

• 64 MB

• 128 MB

Performance screen options

Option Description

Multi Core Support Species whether the process will have one or all cores enabled. The performance of some applications will

improve with the additional cores.

• All - This option is enabled by default

• 1

• 2

• 3

Intel SpeedStep Allows you to enable or disable the Intel SpeedStep feature.

• Enable Intel SpeedStep

Default setting: The option is enabled.

C-States Control Allows you to enable or disable the additional processor sleep states.

• C states

Default setting: The option is enabled.

Limit CPUID Value Allows you to limit the maximum value of the Standard CPUID function support. Some operation systems will not

complete installation when maximum CPUID Function supported is greater than 3.

• Enable CPUID Limit - This option is disabled by default.

Intel TurboBoost Allows you to enable or disable the Intel TurboBoost mode of the processor.

• Enable Intel TurboBoost

52 System setup

Option Description

Default setting: The option is enabled.

Power management screen options

Option Description

AC Recovery Species how the computer will respond when AC power is applied after an AC power loss. You can set the AC

Recovery to:

• Power O (default)

• Power On

• Last Power State

Auto On Time Allows you to set the time at which the computer must turn on automatically. The options are:

• Disabled

• Every Day

• Weekdays

• Select Days

Default setting: Disabled

NOTE: This feature does not work if you turn o your computer using the switch on a power strip or

surge protector or if Auto Power is set to disabled.

Deep Sleep Control Allows you to dene the controls when Deep Sleep is enabled.

• Disabled

• Enabled in S5 only

• Enabled in S4 and S5 – This option is enabled by default.

USB Wake Support Allows you to enable USB devices to wake the system from Standby.

NOTE: This feature is only functional when the AC power adapter is connected. If the AC power

adapter is removed during Standby, the system setup removes power from all the USB ports to

conserve battery power.

• Enable USB Wake Support

Default setting: The option is disabled.

Wake on LAN/

WLAN

Allows you to enable or disable the feature that powers on the computer from the O state when triggered by a

LAN signal.

• Disabled

• LAN Only

• WLAN Only

• LAN or WLAN

• LAN with PXE Boot

Default setting: Disabled

Block Sleep This option lets you block entering to sleep (S3 state) in operating system environment.

System setup 53

Option Description

Block Sleep (S3 state)

Default setting: This option is disabled

Intel Ready Mode This option enables the capability of Intel Ready Mode technology.

POST behavior screen options

Option Description

Numlock LED Species if the NumLock function can be enabled when the system boots. This option is enabled by default.

Keyboard Errors Species whether keyboard related errors are reported when it boots. This option is enabled by default.

Fastboot Allows you to speed up the boot process by bypassing some of the compatibility steps. The options are:

• Minimal

• Through (default)

• Auto

Extended BIOS

POST Time

This option creates an additional pre-boot delay and allows you to see the POST status messages. The options are:

• 0 seconds (default)

• 5 seconds

• 10 seconds

Full screen Logo This option displays the full screen logo if your image match the screen resolution. The option is disabled by default.

Warnings and

Errors

This option causes the boot process to only pause when warnings or errors detected. The options are:

• Prompt on Warnings and Errors

• Continue on Warnings

• Continue on Warnings and Errors

Virtualization support screen options

Option Description

Virtualization Allows you to enable or disable the Intel Virtualization Technology.

Enable Intel Virtualization Technology (default).

VT for Direct I/O Enables or disables the Virtual Machine Monitor (VMM) from utilizing the additional hardware capabilities provided

by Intel® Virtualization technology for direct I/O.

Enable VT for Direct I/O - enabled by default.

54 System setup

Maintenance screen options

Option Description

Service Tag Displays the Service Tag of your computer.

Asset Tag Allows you to create a system asset tag if an asset tag is not already set. This option is not set by default.

SERR Messages Controls the SERR message mechanism. This option is enabled by default. Some graphics cards require that the

SERR message mechanism be disabled.

BIOS Downgrade This controls ashing of the system rmware to previous revisions.

• Data Wipe

• Wipe on Next boot

• BIOS recovery

• BIOS recovery from the hard drive

Follow the procedure to recover BIOS from hard drive.

1 Power on the system.

2 While the blue Dell logo is visible, press the F2 key to enter the System Setup.

3 Press the Num Lock key, and verify that the Num Lock light is on.

4 Press the Caps Lock key, and verify that the Caps Lock light is on.

5 Press the Scroll Lock key, and verify that the Scroll Lock light is on.

6 Press the Alt + F keys at the same time. The system will beep as the setup defaults are restored.

7 Press the Alt + F keys at the same time to restart the system. The changes are automatically saved.

Data Wipe This eld allows your to securely erase data from all internal storage devices. The following is a list of devices

aected by this operation:

• Internal HDD

• Internal SSD

• Internal mSATA

• Internal eMMC

WARNING: This operation will permanently delete all data from the devices.

BIOS Recovery This option enable you to recover from certain corrupted BIOS conditions from a recovery le on the primary hard

drive or an external USB key.This option is enabled by default.

System Log screen options

Option Description

BIOS Events Allows you to view and clear the System Setup (BIOS) POST events.

Updating the BIOS

It is recommended to update your BIOS (system setup), on replacing the system board or if an update is available.

1 Re-start the computer.

2 Go to dell.com/support.

System setup 55

3 Enter the Service Tag or Express Service Code and click Submit.

NOTE: To locate the Service Tag, click Where is my Service Tag?

NOTE: If you cannot nd your Service Tag, click Detect My Product. Proceed with the instructions on

screen.

4 If you are unable to locate or nd the Service Tag, click the Product Category of your computer.

5 Choose the Product Type from the list.

6 Select your computer model and the Product Support page of your computer appears.

7 Click Get drivers and click View All Drivers.

The Drivers and Downloads page opens.

8 On the Drivers and Downloads screen, under the Operating System drop-down list, select BIOS.

9 Identify the latest BIOS le and click Download File.

You can also analyze which drivers need an update. To do this for your product, click Analyze System for Updates and follow the

instructions on the screen.

10 Select your preferred download method in the Please select your download method below window; click Download File.

The File Download window appears.

11 Click Save to save the le on your computer.

12 Click Run to install the updated BIOS settings on your computer.

Follow the instructions on the screen.

System and setup password

You can create a system password and a setup password to secure your computer.

Password type Description

System password Password that you must enter to log on to your system.

Setup password Password that you must enter to access and make changes to the BIOS settings of your computer.

CAUTION: The password features provide a basic level of security for the data on your computer.

CAUTION: Anyone can access the data stored on your computer if it is not locked and left unattended.

NOTE: Your computer is shipped with the system and setup password feature disabled.

Assigning a system password and setup password

You can assign a new System Password only when the status is in Not Set.

NOTE: If the password jumper is disabled, the existing System Password and Setup Password are deleted and you need not

provide the system password to log on to the computer.

To enter the system setup, press F2 immediately after a power-on or re-boot.

1 In the System BIOS or System Setup screen, select Security and press Enter.

The Security screen is displayed.

2 Select System Password and create a password in the Enter the new password eld.

Use the following guidelines to assign the system password:

• A password can have up to 32 characters.

• The password can contain the numbers 0 through 9.

• Only lower case letters are valid, upper case letters are not allowed.

• Only the following special characters are allowed: space, (”), (+), (,), (-), (.), (/), (;), ([), (\), (]), (`).

3 Type the system password that you entered earlier in the Conrm new password eld and click OK.

56 System setup

4 Press Esc and a message prompts you to save the changes.

5 Press Y to save the changes.

The computer reboots.

Deleting or changing an existing system and/or setup

password

Ensure that the Password Status is Unlocked (in the System Setup) before attempting to delete or change the existing System and/or

Setup password. You cannot delete or change an existing System or Setup password, if the Password Status is Locked.

To enter the System Setup, press F2 immediately after a power-on or reboot.

1 In the System BIOS or System Setup screen, select System Security and press Enter.

The System Security screen is displayed.

2 In the System Security screen, verify that Password Status is Unlocked.

3 Select System Password, alter or delete the existing system password and press Enter or Tab.

4 Select Setup Password, alter or delete the existing setup password and press Enter or Tab.

NOTE: If you change the System and/or Setup password, re-enter the new password when promoted. If you delete the

System and/or Setup password, conrm the deletion when promoted.

5 Press Esc and a message prompts you to save the changes.

6 Press Y to save the changes and exit from System Setup.

The computer reboots.

System setup 57

Troubleshooting your computer

You can troubleshoot your computer using indicators like diagnostic lights, beep codes, and error messages during the operation of the

computer.

Enhanced Pre-Boot System Assessment (ePSA)

diagnostics

The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware. The ePSA is embedded with the

BIOS and is launched by the BIOS internally. The embedded system diagnostics provides a set of options for particular devices or device

groups allowing you to:

• Run tests automatically or in an interactive mode

• Repeat tests

• Display or save test results

• Run thorough tests to introduce additional test options to provide extra information about the failed device(s)

• View status messages that inform you if tests are completed successfully

• View error messages that inform you of problems encountered during testing

CAUTION: Use the system diagnostics to test only your computer. Using this program with other computers may cause invalid

results or error messages.

NOTE: Some tests for specic devices require user interaction. Always ensure that you are present at the computer terminal

when the diagnostic tests are performed.

Running the ePSA diagnostics

1 Power-on the computer.

2 As the computer boots, press the F12 key as the Dell logo appears.

3 On the boot menu screen, select the Diagnostics option.

The Enhanced Pre-boot System Assessment window is displayed, listing all devices detected in the computer. The diagnostics starts

running the tests on all the detected devices.

4 To run a diagnostic test on a specic device, press Esc and click Yes to stop the diagnostic test.

5 Select the device from the left pane and click Run Tests.

6 If there are any issues, error codes are displayed.

Note the error code and contact Dell.

Power supply—built in self test (BIST)

ships with a power supply with the built in self-test (BIST) feature that drives new troubleshooting steps for customers and technicians. All

power supply units include a self-test ability in an isolation mode.

Customers can test the health of the power system by pressing the test button. The button is lit by a signal in the power supply called

Power_Good (PG). When the +3.3v, +5v, and +12v rails are up and within spec, the PG signal turns on, lighting the self-test LED. By

removing the cable harness in units that do not pass this test, the customer, or technician can isolate the failure's cause to an attached

device of the power supply.

58 Troubleshooting your computer

Power supply BIST button is located near the power supply connector.

LCD built in self test (BIST)

All-in-One (AIO) systems supports LCD BIST similar to any other Dell systems that have BIST test implemented. It allows the user to isolate

the LCD during troubleshooting to determine which sub-system is at fault. The main dierence is the lack of an integrated keyboard scan

controller in the AIO. When BIST is initiated, an internal generated pattern from the LCD will be emitted for user's observation. This pattern

will go by sequence through this pattern. Black-White-Red-Green-Blue or a White-Black-Red-Green-Blue where each pattern is emitted for

2 to 3 seconds. The following images displays the pattern of the colors on the LCD.

Troubleshooting your computer 59

60 Troubleshooting your computer

Invoking BIST with user modes

There are two methods to invoke the LCD BIST .

• OSD Toggle

• ePSA

OSD toggle

The rst method of user initiation is via OSD toggle button. The user should press the OSD toggle button and hold it in while the power

button is applied to turn the AIO on. This is the hardware-initiated method that does not require the CPU and BIOS to be functional. The

panel will stay in BIST mode until the BIOS reboots the system. The test duration is approximately 20 seconds which allows 2 cycles of

color bar patterns.

To invoke the BIST test via OSD Toggle:

1 Press and hold down the OSD toggle button.

2 Press the power button to turn on the computer while holding down on the OSD toggle button.

NOTE: The OSD toggle is located at the right side of the chassis, just above the Hard Disk indicator light.

ePSA

The second method to troubleshoot is via ePSA entry. The user initiates a Pre-Boot POST via F12 function key and the system enters

ePSA. The ePSA menu will have an LCD BIST selection that asserts the proper signals via BIOS commands. The BIST mode will loop for

Troubleshooting your computer 61

approximately 20 seconds giving 2 cycles of color bar patterns that the user can observe. The time period is controlled by BIOS. After the

time period, the BIOS will return the system to the ePSA menu.

62 Troubleshooting your computer

Technical specications

NOTE: Oerings may vary by region. For more information regarding the conguration of your computer in:

• Windows 10, click or tap Start > Settings > System > About.

• Windows 8.1 and Windows 8, from the charms sidebar, click or tap Settings > Change PC settings. In the PC Settings window,

select PC and devices > PC Info.

• Windows 7, click Start , right-click My Computer, and then select Properties.

Topics:

• System specications

• Memory specications

• Video specications

• Audio specications

• Communication specications

• Cards specications

• Display specications

• Drives specications

• Port and connector specications

• Power specications

• Camera (optional) specications

• Stand specications

• Physical specications

• Environmental specications

System specications

Feature Specication

Processor cache Intel Core i3/ i5 / i7 series

Total cache Up to 8 MB cache depending on processor type

Chipset Intel Q170 chipset

Memory specications

Feature Specication

Memory type up to 1600 MHz, unbuered non-ECC, dual‐channel DDR4 2133 conguration

Memory capacity 4 GB and 8 GB

Technical specications 63

Feature Specication

Memory connectors two internally-accessible DDR4 SODIMM sockets

Minimum memory 4 GB

Maximum memory 16 GB

Video specications

Feature Specication

Video Controller

(Integrated)

Integrated Intel HD Graphics (Gen 9 iGfx), 2GB GDDR5 for dGPU

Video Memory shared memory

External display

support

Display port, HDMI in and HDMI out

Audio specications

Feature Specication

Controller Intel High Denition Audio with Waves MaxxVoice Pro

Speaker single 4-ohms speakers in both the left and right speaker assembly (4 W average per channel)

Internal speaker

amplier

up to 7.6 W at 4-ohm per channel

Internal microphone

support

dual digital microphone

Volume controls Volume up/down buttons, program menus, and keyboard media-control keys

WARNING: Excessive sound pressure from earphones or headphones can cause hearing damage or

loss. Adjustment of the volume control as well as the equalizer to settings other than the center

position may increase the earphones or headphones output voltage, and therefore the sound pressure

level. The use of factors inuencing the earphones or headphones output other than those specied by

the manufacturer(e.g. operating system, equalizer software, rmware, driver, etc.) may increase the

earphones or headphones output voltage and therefore the sound pressure level. The use of earphones

or headphones other than those specied by the manufacturer may lead to heightened sound pressure

level.

Communication specications

Features Specication

Network adapter Intel 10/100/1000 Mbps RJ-45 Ethernet

Wireless • M.2 2230 card

• combo M.2 card (Intel Wireless 8260 M.2 PCIe WLAN card (802.11n/ac) with Bluetooth)

64 Technical specications

Cards specications

Feature Specication

M.2 slots • One 2230 D3 Key-A M.2 Socket 1

• One 2280 D3 Key-M M.2 Socket 3

Display specications

Drives specications

Feature Specication

Hard drive one 2.5-inch SATA drive with an adapter bracket and one 2.5-inch SATA drive (optional)

Optical drive

(optional)

one DVD-ROM SATA drive or DVD+/- RW SATA drive

Port and connector specications

Feature Specication

Audio • one line-out connector at rear

• one global headset port at side

Network adapter One RJ-45 connector

USB 2.0 (Front/

Rear)

0(side)/2

USB 3.0 (Front/

Rear)

2(side)/4

USB port with

PowerShare support

1(side) USB 3.0

Video one display port

HDMI • one 19–pin output port

• one 19–pin input port

Media card reader one 4-in-1 slot

Power specications

Feature Specication

155 Watt PSU for

UMA

200 Watt dGPU and

UHD(4K)

Technical specications 65

Feature Specication

Frequency 47 Hz — 63 Hz

Voltage 90 VAC — 264 VAC

Input current • Maximum 2.6 A ( Low AC range)

• Maximum 1.3 A ( High AC range)

Camera (optional) specications

Feature Specication

Image resolution 2.0 megapixel

Video resolution FHD (1080p)

Diagonal viewing

angle

74 degrees

Stand specications

Feature Specication

Tilt –5 degrees to 30 degrees

Physical specications

Feature Specication

Width 575.24 mm (22.65 inches)

Height 392.90 mm (15.47 inches)

Depth:

Non-touch 62.79 mm (2.47 inches)

Touch 62.79 mm (2.47 inches)

Weight:

Non-touch 9.76 kg with stand (21.52 lb)

Touch 11.00 kg with stand (24.25 lb)

NOTE: The weight of your computer may vary depending on the conguration ordered and the manufacturing variability.

Environmental specications

Temperature Specications

Operating 0°C to 35°C (50°F to 95°F)

Storage –40°C to 65°C (–40°F to 149°F)

Relative humidity

(maximum)

Specications

Operating 20 % to 80 % (non condensing)

66 Technical specications

Relative humidity

(maximum)

Specications

Storage 20 % to 80 % (non condensing)

Maximum

vibration

Specications

Operating 0.26 GRMS at 5 to 350 Hz

Storage 2.2 GRMS at 5 to 500 Hz

Maximum shock Specications

Operating 40 G

Storage 45 G

Altitude

(maximum)

Specications

Operating 0 m to 5000 m (0 ft to 16,404 ft)

Non-operating 0 m to 5000 m (0 ft to 16,404 ft)

Airborne

contaminant level

G2 or lower as dened by ANSI/ISA-S71.04-1985

Technical specications 67

Contacting Dell

NOTE: If you do not have an active Internet connection, you can nd contact information on your purchase invoice, packing slip,

bill, or Dell product catalog.

Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services

may not be available in your area. To contact Dell for sales, technical support, or customer service issues:

1 Go to Dell.com/support.

2 Select your support category.

3 Verify your country or region in the Choose a Country/Region drop-down list at the bottom of the page.

4 Select the appropriate service or support link based on your need.

68 Contacting Dell

Table of Contents

DELL 5250 User Manual

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