XPS 8910
Service Manual
Computer Model: XPS 8910
Regulatory Model: D24M
Regulatory Type: D24M001
Contents
Before you begin .............................................................................................10
Safety instructions............................................................................................10
Recommended tools........................................................................................11
Screw list...........................................................................................................12
Inside view of your computer..........................................................................14
System-board components.............................................................................15
Procedure......................................................................................................... 17
Procedure.........................................................................................................19
Prerequisites.................................................................................................... 20
Procedure........................................................................................................ 20
Procedure.........................................................................................................22
Post-requisites.................................................................................................22
Prerequisites.....................................................................................................23
Procedure.........................................................................................................23
3
Procedure.........................................................................................................25
Post-requisites.................................................................................................25
Prerequisites.....................................................................................................26
Procedure........................................................................................................ 26
Procedure........................................................................................................ 29
Post-requisites.................................................................................................29
Prerequisites.................................................................................................... 30
Procedure........................................................................................................ 30
Procedure........................................................................................................ 34
Prerequisites.....................................................................................................34
Prerequisites.....................................................................................................35
Procedure.........................................................................................................35
Procedure.........................................................................................................37
Post-requisites................................................................................................. 37
Prerequisites.....................................................................................................38
Procedure........................................................................................................ 38
4
Procedure........................................................................................................ 40
Post-requisites................................................................................................. 41
Prerequisites.....................................................................................................42
Procedure........................................................................................................ 42
Procedure........................................................................................................ 46
Post-requisites.................................................................................................46
Prerequisites.....................................................................................................47
Procedure.........................................................................................................47
Procedure........................................................................................................ 49
Post-requisites.................................................................................................49
Prerequisites.................................................................................................... 50
Procedure........................................................................................................ 50
Procedure.........................................................................................................53
Post-requisites................................................................................................. 53
Prerequisites.....................................................................................................54
Procedure........................................................................................................ 54
5
Procedure........................................................................................................ 56
Post-requisites.................................................................................................56
Prerequisites.....................................................................................................57
Procedure........................................................................................................ 58
Procedure........................................................................................................ 60
Post-requisites.................................................................................................60
Prerequisites.....................................................................................................61
Procedure.........................................................................................................61
Procedure........................................................................................................ 63
Post-requisites.................................................................................................65
Prerequisites ................................................................................................... 66
Procedure........................................................................................................ 66
Procedure........................................................................................................ 70
Post-requisites........................................................................................... 70
Prerequisites..................................................................................................... 71
Procedure......................................................................................................... 71
6
Procedure.........................................................................................................73
Post-requisites................................................................................................. 73
Prerequisites.....................................................................................................74
Procedure.........................................................................................................74
Procedure.........................................................................................................77
Post-requisites................................................................................................. 77
Prerequisites.....................................................................................................78
Procedure.........................................................................................................78
Procedure........................................................................................................ 82
Post-requisites.................................................................................................82
Prerequisites.....................................................................................................83
Procedure........................................................................................................ 83
Procedure........................................................................................................ 85
Post-requisites.................................................................................................85
Prerequisites.................................................................................................... 86
Procedure........................................................................................................ 86
7
Procedure........................................................................................................ 88
Post-requisites.................................................................................................89
Prerequisites.....................................................................................................91
Procedure.........................................................................................................91
Procedure........................................................................................................ 93
Post-requisites.................................................................................................94
Prerequisites.....................................................................................................95
Procedure........................................................................................................ 95
Procedure........................................................................................................ 98
Post-requisites.................................................................................................98
Prerequisites.................................................................................................... 99
Procedure........................................................................................................ 99
Procedure.......................................................................................................101
Post-requisites............................................................................................... 101
8
Overview........................................................................................................ 103
Entering BIOS setup program....................................................................... 103
System Setup Options................................................................................... 103
Clearing forgotten passwords.......................................................................108
Prerequisites.............................................................................................108
Procedure................................................................................................ 109
Post-requisites..........................................................................................110
Clearing CMOS settings................................................................................. 111
Prerequisites..............................................................................................111
Procedure..................................................................................................111
Post-requisites..........................................................................................113
Self-help resources........................................................................................ 115
Contacting Dell.............................................................................................. 116
9
Before working inside your
computer
NOTE: The images in this document may differ from your computer
depending on the configuration you ordered.
Before you begin
1
Save and close all open files and exit all open applications.
Shut down your computer.
2
The shut-down instruction varies depending on the operating system
installed on your computer.
–
–
Windows 10: Click Start → Power → Shut down.
Windows 8.1: On the Start screen, click the power icon
→ Shut
down.
–
Windows 7: Click Start → Shut down.
NOTE: If you are using a different operating system, see the
documentation of your operating system for shut-down
instructions.
3
4
5
6
7
Disconnect your computer and all attached devices from their electrical
outlets.
Disconnect all cables such as telephone cables, network cables, and so
on, from your computer.
Disconnect all attached devices and peripherals, such as keyboard,
mouse, monitor, and so on, from your computer.
Remove any media card and optical disc from your computer, if
applicable.
After the computer is unplugged, press and hold the power button for 5
seconds to ground the system board.
Safety instructions
Use the following safety guidelines to protect your computer from potential
damage and ensure your personal safety.
10
WARNING: Before working inside your computer, read the safety
information that shipped with your computer. For more safety best
practices, see the Regulatory Compliance home page at
WARNING: Disconnect all power sources before opening the
computer cover or panels. After you finish working inside the
computer, replace all covers, panels, and screws before connecting to
the electrical outlet.
CAUTION: To avoid damaging the computer, ensure that the work
surface is flat and clean.
CAUTION: To avoid damaging the components and cards, handle
them by their edges, and avoid touching pins and contacts.
CAUTION: You should only perform troubleshooting and repairs as
authorized or directed by the Dell technical assistance team. Damage
due to servicing that is not authorized by Dell is not covered by your
warranty. See the safety instructions that shipped with the product or
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.
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 or thumb-screws that you must disengage before
disconnecting the cable. When disconnecting cables, keep them
evenly aligned to avoid bending any connector pins. When connecting
cables, ensure that the ports and connectors are correctly oriented
and aligned.
CAUTION: Press and eject any installed card from the media-card
reader.
Recommended tools
The procedures in this document may require the following tools:
•
Philips screwdriver
11
•
•
Flat-head screwdriver
Plastic scribe
Screw list
The following table provides the list of screws that are used for securing
different components to the computer.
Component
Secured to
Screw type
Quantity
Hard drive
Hard-drive
bracket
#6-32 X 1/4''
4
Hard-drive cage
Chassis
#6-32 X 1/4''
6 (two per hard-
drive cage
installed)
Power-supply
bracket
Chassis
Chassis
#6-32 X 1/4''
#6-32 X 1/4''
#6-32 X 1/4''
2
4
3
Power-supply
unit
Blower
Heat-sink
assembly
Chassis fan
Chassis
#6-32 X 1/4''
#6-32 X 1/4''
1
1
Power button
module
Top panel
Solid-state drive
Wireless card
Top IO panel
ODD
System board
System board
Chassis
M2 X 2.5
1
M2 X 2.5
1
#6-32 X 1/4''
M2 x 2.5
4
1
ODD bracket
Chassis
System board
#6-32 X 1/4''
8
12
After working inside your
computer
CAUTION: Leaving stray or loose screws inside your computer may
severely damage your computer.
1
Replace all screws and ensure that no stray screws remain inside your
computer.
2
3
4
5
Connect any external devices, peripherals, or cables you removed before
working on your computer.
Replace any media cards, discs, or any other parts that you removed
before working on your computer.
Connect your computer and all attached devices to their electrical
outlets.
Turn on your computer.
13
Technical overview
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Inside view of your computer
1
chassis fan
2
memory module
14
3
5
7
optical drive
front bezel
4
6
8
power-supply unit
graphics card
system board
processor fan and heat-sink
assembly
System-board components
1
power connector (ATX_POWER) 2
USB 2 (F_SSUSB2)
3
USB 1 (F_SSUSB1)
4
6
8
SATA 6 Gbps for optical drive
(SATA1)
5
7
SATA 6 Gbps for hard drive
(SATA2)
SATA 6 Gbps drive connector
(SATA3)
SATA 6 Gbps drive connector
(SATA4)
solid-state drive slot (M.2 SSD)
15
9
I/O panel (F_PANEL)
10
12
14
media card reader connector
(CARD_READER)
11
13
15
CMOS-reset jumper (CMOS
JUMPER)
password-reset jumper
(PASSWORD JUMPER)
PCI-Express x16 card slot
(SLOT1)
PCI-Express x1 card slots (SLOT
2 and SLOT 3)
PCI-Express x4 card slot (SLOT 16
4)
Top I/O and audio connector
(F_audio)
17
19
wireless-card slot (M.2_SLOT1) 18
CPU cable (ATX_CPU)
chassis-fan connector
(TOP_FAN)
20 processor socket
21
23
processor cover
22
24
26
processor-fan connector
(CPU_FAN)
coin-cell battery (CMOS
BATTERY)
memory-module slot (DIMM3)
25
27
memory-module slot (DIMM1)
memory-module slot (DIMM2)
memory-module slot (DIMM4)
16
Removing the right-side cover
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
1
2
3
Lay the computer on the left side.
Pull the right-side cover release latch.
Lift the right-side cover and then slide it towards the top of the
computer.
17
4
Remove the right-side cover from the chassis.
1
chassis
2
right-side cover release
latch
3
right-side cover
18
Replacing the right-side cover
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
1
Align the tabs on the right-side cover with the slots on the chassis and
snap the side-cover to lock it in place.
2
Place the computer in an upright position.
19
Removing the top cover
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Prerequisites
Procedure
1
Place the computer in an upright position.
20
2
Pry and lift the top cover away from the chassis.
1
top cover
2
chassis
21
Replacing the top cover
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
1
Align the tabs on the top cover with the slots on the top panel.
2
Press and slide the top cover towards the back of the computer until it
clicks into place.
3
Lay the computer on the left side.
Post-requisites
22
Removing the bottom cover
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Prerequisites
Procedure
1
Place the computer with the bottom facing up.
23
2
Pry and lift the bottom cover away from the chassis.
1
bottom cover
2
chassis
24
Replacing the bottom cover
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
1
Align the tabs on the bottom cover with the slots on the bottom panel.
2
Press and slide the bottom cover towards the back of the computer until
it clicks into place.
3
Lay the computer on the left side.
Post-requisites
25
Removing the front bezel
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Prerequisites
Procedure
1
Place the computer in an upright position.
26
2
Pry the optical-drive bezel from the front bezel.
1
optical-drive bezel
2
front bezel
3
Release the front-bezel tabs sequentially from the top, one at a time by
moving them away from the front panel.
27
4
Rotate and pull the front bezel away from the front of the computer to
release the front-bezel.
1
front-bezel tabs
front panel
2
front bezel
3
28
Replacing the front bezel
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
1
Align the tabs on the front bezel with the slots on the chassis.
2
Rotate the front bezel towards the computer until the front bezel tabs
snap into place.
3
4
Snap the optical-drive bezel to the front bezel.
Lay the computer on the left side.
Post-requisites
29
Removing the hard drive
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
CAUTION: Hard drives are fragile. Exercise care when handling the
hard drive.
CAUTION: To avoid data loss, do not remove the hard drive while the
computer is in sleep or on state.
Prerequisites
Procedure
1
Disconnect the data and power cables from the hard-drive assembly.
30
2
Remove the screws that secure the hard-drive assembly to the hard-drive
cage.
1
#6-32 X 1/4'' screws (2)
hard-drive cage
power cable
2
4
hard-drive assembly
data cable
3
5
31
3
Grasp the tabs and lift the hard-drive assembly off the hard-drive cage.
1
hard-drive cage
2
tab
3
hard-drive assembly
4
Remove the screws that secure the hard drive to the hard-drive bracket.
32
5
Lift the hard drive off the hard-drive bracket.
NOTE: Note the orientation of the hard drive to replace it correctly.
1
#6-32 X 1/4'' screws (4)
hard-drive bracket
2
hard drive
3
33
Replacing the hard drive
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
CAUTION: Hard drives are fragile. Exercise care when handling the
hard drive.
Procedure
1
Place the hard drive into the hard-drive bracket.
2
Align the screw holes on the hard-drive bracket with the screw holes on
the hard drive.
3
4
5
Replace the screws that secure the hard drive to the hard-drive bracket.
Insert the hard-drive assembly into the hard-drive cage.
Replace the screws that secure the hard-drive assembly to the hard-drive
cage.
6
Connect the data and power cables to the hard-drive assembly.
Prerequisites
34
Removing the hard-drive cage
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Prerequisites
1
2
Procedure
1
Remove the screws that secure the hard-drive cage to the chassis.
35
2
Lift the hard-drive cage off the chassis.
1
#6-32 X 1/4'' screws (2)
chassis
2
hard-drive cage
3
36
Replacing the hard-drive cage
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
1
2
3
Insert the hard-drive cage into its slot on the chassis.
Align the tabs on the cage with the tabs on the chassis.
Replace the screws that secure the hard-drive cage to the chassis.
Post-requisites
1
2
37
Removing the solid-state drive
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
CAUTION: Solid-state drives are fragile. Exercise care when handling
the solid-state drive.
CAUTION: To avoid data loss, do not remove the solid-state drive
while the computer is in sleep or on state.
Prerequisites
1
2
Procedure
1
Remove the screw that secures the solid-state drive to the system board.
38
2
Slide and lift the solid-state drive off the system board.
1
solid-state drive slot
system board
2
4
solid-state drive
M2 X 2.5 screw
3
39
Replacing the solid-state drive
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
CAUTION: Solid-state drives are fragile. Exercise care when handling
the solid-state drive.
Procedure
1
Align the notch on the solid-state drive with the tab on the solid-state
drive slot.
2
Insert the solid-state drive at a 45-degree angle into the solid-drive drive
slot.
40
Removing the power-supply
unit
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Prerequisites
Procedure
NOTE: Note the routing of all cables as you remove them so that you
can reroute them correctly after you replace the power supply.
1
Slide the power supply unit release latches towards the unlock position.
42
2
Rotate the power-supply unit away from the power-supply unit cage.
1
power-supply unit release
latches (2)
2
4
chassis
3
power-supply unit
power-supply unit cage
3
Disconnect the CPU-power cable and system board power cable from
the system board and the optical-drive power cable from the optical
drive.
43
4
Disconnect the graphics-card power cables if applicable.
1
optical drive cable
CPU cable
2
4
routing guide
system board
3
5
power cable
5
6
7
8
9
Remove the cable from the routing guide on the chassis.
Rotate the power-supply unit towards the chassis.
Disconnect the hard-disk power cable.
Remove the screws that secure the power-supply bracket to the chassis.
Remove the screws that secure the power-supply unit to the chassis.
10 Lift the power-supply bracket off the chassis.
44
11 Lift the power-supply unit off the chassis.
1
#6-32 X 1/4'' screws (4)
power-supply bracket
hard-drive cable
2
4
power-supply unit
3
5
#6-32 X 1/4'' screws (2)
45
Replacing the power-supply
unit
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
1
Place the power supply on the power-supply unit cage.
2
Replace the screws that secure the power-supply unit to the power-
supply unit cage.
3
4
Align the screw holes on the power-supply bracket with the screw holes
on the power-supply unit cage.
Replace the screws that secure the power supply bracket to the power-
supply unit cage.
5
6
7
Connect the hard-drive power cable.
Rotate the power-supply unit away from the chassis.
Connect the CPU-power cable, system-board power cable to the system
board and the optical-drive power cable to the optical drive.
Connect the graphics-card power cables if applicable.
8
9
Rotate the power-supply unit towards the chassis until the unit snaps into
place.
10 Slide the power supply unit release latches towards the bottom of the
computer to lock the release latches.
Post-requisites
46
Removing the coin-cell
battery
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
CAUTION: Removing the coin-cell battery resets the BIOS setup
program’s settings to default. It is recommended that you note the
BIOS setup program’s settings before removing the coin-cell battery.
Prerequisites
1
2
Follow the procedure from step 1 to step 2 in “Removing the power-
Procedure
1
Using a plastic scribe, press the battery-release lever away from the coin-
cell battery until the coin-cell battery pops up.
47
2
Lift the coin-cell battery out of its socket.
1
plastic scribe
2
4
coin-cell battery
3
coin-cell battery socket
battery-release lever
48
Replacing the coin-cell battery
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
Insert the coin-cell battery into the battery socket with the positive side facing
up, and snap the battery into place.
Post-requisites
1
Follow the procedure from step 9 to step 10 in “Replacing the power-
2
49
Removing the chassis fan
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Prerequisites
1
2
Follow the procedure from step 1 to step 2 in “Removing the power-
Procedure
1
Remove the chassis-fan cable from the routing guide on the chassis-fan
bracket.
2
Disconnect the chassis-fan cable from the system board.
Remove the screw that secures the chassis fan to the chassis.
3
4
Slide the chassis fan towards the front of the computer to release the fan
from the chassis.
50
5
Lift the chassis fan off the chassis.
1
routing guide
2
4
6
chassis-fan bracket
chassis
3
5
7
#6-32 X 1/4'' screw
chassis-fan cable
chassis fan
system board
6
Push the rubber grommets through the holes at each corner of the fan to
release the chassis-fan from the bracket.
51
7
Lift the chassis-fan off the chassis-fan bracket.
1
chassis-fan bracket
2
chassis-fan
52
Replacing the chassis fan
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
1
2
3
Align the holes on the chassis fan with the rubber grommets on the
chassis-fan bracket.
Insert the ends of the rubber grommets through the holes at each corner
of the fan.
Align the grommets in the fan with the holes at each corner of the
chassis fan bracket and pull through until they snap into place.
4
5
Route the chassis-fan cable through the routing guide on the bracket.
Align the tab on the chassis-fan bracket with the slot on the chassis and
slide the fan into position.
6
Align the screw hole on the chassis fan with the screw hole on the
chassis.
7
8
9
Replace the screw that secures the chassis fan to the chassis.
Route the chassis-fan cable through the routing guide on the bracket.
Connect the chassis-fan cable to the system board.
Post-requisites
1
Follow the procedure from step 9 to step 10 in “Replacing the power-
2
53
Removing the graphics card
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Prerequisites
NOTE: Your computer will be shipped with either graphics card or full-
length graphics card.
1
2
Follow the procedure from step 1 to step 2 in “Removing the power-
Procedure
1
Locate the graphics card on the system board and make note of the
graphics-card slot (PCI-Express x16).
54
2
Push the securing tab on the PCIe slot away from the graphics card,
grasp the card by its top corner, and ease it out of the slot.
1
securing tab
2
4
system board
graphics card
3
graphics card slot
55
Replacing the graphics card
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
1
Locate the PCI-Express x16 card slot on the system board.
2
Align the notch on the graphics card with the tab on the slot and snap
the graphics card in place.
Post-requisites
1
Follow the procedure from step 9 to step 10 in “Replacing the power-
2
56
Removing the full-length
graphics cards
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Prerequisites
NOTE: Your computer will be shipped with either graphics card or full-
length graphics card.
1
2
Follow the procedure from step 1 to step 2 in “Removing the power-
57
3
Push the securing tab on the PCIe slot away from the graphics card,
grasp the card by its top corner, and ease it out of the slot.
1
power cables
graphics card
2
4
releasing clips (2)
securing tab
3
59
Replacing the full-length
graphics cards
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
1
Align the full-length graphics card with the slot on the system board.
2
Place the card into the slot and press down firmly until the full-length
graphics card snaps into place.
3
4
Connect the power cables to the full-length graphics card.
Slide the tab on the graphics-card bracket into the slot on the chassis and
snap it into place.
Post-requisites
1
Follow the procedure from step 9 to step 10 in “Replacing the power-
2
60
Removing the memory
modules
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Prerequisites
1
2
Follow the procedure from step 1 to step 2 in “Removing the power-
Procedure
1
Locate the memory-module slot on the system board.
Push the securing clips away from the memory module.
2
61
3
Grasp the memory module near the securing clip, and then gently ease
the memory module out of the memory-module slot.
CAUTION: If the memory module is difficult to remove, gently
ease the memory module back and forth to remove it from the
slot.
NOTE: Repeat step 2 to step 3 to remove any other memory
modules installed in your computer.
1
memory-module slot
securing clips (2)
2
4
memory module
system board
3
62
Replacing the memory
modules
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
1
Align the notch on the memory module with the tab on the memory-
module slot.
63
2
Insert the memory module into the memory-module slot, and press the
memory module straight until it snaps into position and the securing clips
lock in place.
NOTE: If you do not hear the click, remove the memory module
and reinstall it.
1
tab
2
4
notch
3
5
memory-module slot
system board
memory module
64
NOTE: Use slots DIMM1 and DIMM3 if you need to use two memory
The following table lists the available memory configuration matrix:
Slot
Configurat
ion
DIMM1
4 GB
DIMM2
4 GB
DIMM3
DIMM4
8 GB
16 GB
24 GB
32 GB
64 GB
8 GB
8 GB
4 GB
4 GB
8 GB
8 GB
16 GB
8 GB
8 GB
16 GB
8 GB
8 GB
16 GB
16 GB
Post-requisites
1
Follow the procedure from step 9 to step 10 in “Replacing the power-
2
65
Removing the optical drive
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Prerequisites
1
2
Follow the procedure from step 1 to step 2 in “Removing the power-
Procedure
1
Disconnect the power and data cables from the optical drive.
2
Pull the release tab on the optical-drive cage towards the bottom of the
computer.
66
3
Push to slide out the optical drive through the front of the computer.
1
power cable
optical drive
release tab
2
4
data cable
3
5
optical-drive cage
67
4
Push and slide the optical drive through the front of the computer.
1
optical-drive cover
front bezel
2
optical drive
3
68
5
Remove the screw that secures the optical-drive bracket to the optical
drive.
1
M2 x 2.5 screw
optical drive
2
optical-drive bracket
3
69
Replacing the optical drive
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
1
Align the screw hole on the optical-drive bracket with the screw hole on
the optical drive.
2
Replace the screw that secures the optical-drive bracket to the optical
drive.
3
4
Replace the optical drive cover.
Slide the optical drive into the optical-drive cage through the front of the
computer till it snaps into place.
5
Connect the power and data cables to the optical drive.
Post-requisites
1
Follow the procedure from step 9 to step 10 in “Replacing the power-
2
70
Removing the power-button
module
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Prerequisites
1
2
3
Procedure
NOTE: Note the routing of the cable as you remove it so that you can
reroute it correctly after you replace the power-button module.
1
Disconnect the power-button module cable from the system board.
2
3
Note the power-button module cable routing and remove the cable from
the routing guides next to the system board on the chassis.
Remove the screw that secures the power-button module and lift the
power-button module from the chassis.
71
4
Remove the cable from the slot on top of the chassis.
1
system board
2
4
6
chassis
3
5
routing guide
#6-32 X 1/4'' screw
power-button module
power-button module
cable
72
Replacing the power-button
module
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
1
Route the cable through the slot on the top of the chassis.
2
Align the screw hole on the power-button module with the screw hole
on the chassis.
3
4
5
Replace the screw that secures the power-button module to the top
chassis.
Route the power-button module cable through the routing guides on the
chassis.
Connect the power-button module cable to the system board.
Post-requisites
1
2
3
73
Removing the top I/O-panel
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Prerequisites
1
2
3
4
Follow the procedure from step 1 to step 2 in “Removing the power-
Procedure
1
Disconnect the top I/O-panel cables from the system board.
2
Note the I/O-panel cables routing and remove them from the routing
guides next to the system board on the chassis.
74
3
Remove the cables through the slot at the top of the chassis.
1
I/O-panel cables (2)
chassis
2
4
routing guide
3
top I/O panel bracket
4
Remove the screws that secure the top I/O-panel to the chassis.
75
5
Lift the top I/O-panel bracket from the chassis.
1
#6-32 X 1/4'' (4)
chassis
2
top I/O-panel bracket
3
76
Replacing the top I/O-panel
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
1
Align the screw holes on the top I/O-panel with the screw holes on the
chassis.
2
3
4
Replace the screws that secure the top I/O-panel to the top chassis.
Route the I/O-panel cables through the routing guides on the chassis.
Connect the top I/O-panel cables to the system board.
Post-requisites
1
2
3
Follow the procedure from step 9 to step 10 in “Replacing the power-
4
77
Removing blower and heat-
sink assembly
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
WARNING: The heat sink may become hot during normal operation.
Allow sufficient time for the heat sink to cool before you touch it.
CAUTION: For maximum cooling of the processor, do not touch the
heat transfer areas on the heat sink. The oils in your skin can reduce
the heat transfer capability of the thermal grease.
Prerequisites
1
2
Follow the procedure from step 1 to step 2 in “Removing the power-
Procedure
1
Remove the screws that secure the blower to the heat-sink assembly.
78
2
Lift the blower off the heat-sink assembly and place it to the side.
1
#6-32 X 1/4'' screws (3)
2
blower
3
Loosen the captive screws that secure the heat-sink assembly to the
system board.
79
4
Lift the heat-sink assembly off the system board.
1
captive screws (4)
system board
2
heat-sink assembly
3
80
5
Disconnect the blower cable from the system board.
1
system board
blower
2
blower cable
3
81
Replacing blower and heat-
sink assembly
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
CAUTION: If either the processor or the heat-sink assembly is
replaced, use the thermal grease provided in the kit to make sure that
thermal conductivity is achieved.
NOTE: The original thermal grease can be reused if the original
processor and heat-sink assembly are reinstalled together.
1
Connect the blower cable to the system board.
Place the heat-sink assembly over the processor.
2
3
Align the captive screws on the heat-sink assembly with the screw holes
on the system board.
4
Tighten the captive screws that secure the heat-sink assembly to the
system board.
5
6
Place the blower over the heat-sink assembly.
Align the screw holes on the blower to the screw holes on the heat-sink
assembly.
7
Replace the screws that secure the blower to the heat-sink assembly.
Post-requisites
1
Follow the procedure from step 9 to step 10 in “Replacing the power-
2
82
Removing the processor fan
and heat-sink assembly
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
WARNING: The heat sink may become hot during normal operation.
Allow sufficient time for the heat sink to cool before you touch it.
CAUTION: For maximum cooling of the processor, do not touch the
heat transfer areas on the heat sink. The oils in your skin can reduce
the heat transfer capability of the thermal grease.
Prerequisites
1
2
Follow the procedure from step 1 to step 2 in “Removing the power-
Procedure
1
Disconnect the processor-fan cable from the system board.
2
Loosen the captive screws that secure the processor fan and heat-sink
assembly to the system board.
83
3
Lift the processor fan and heat-sink assembly off the system board.
1
processor-fan cable
2
4
captive screws (4)
system board
3
processor fan and heat-sink
assembly
84
Replacing the processor fan
and heat-sink assembly
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
CAUTION: If either the processor or the heat-sink assembly is
replaced, use the thermal grease provided in the kit to make sure that
thermal conductivity is achieved.
NOTE: The original thermal grease can be reused if the original
processor and heat-sink assembly are reinstalled together.
1
Place the processor fan and heat-sink assembly over the processor.
2
Align the captive screws on the processor fan heat-sink assembly with
the screw holes on the system board.
3
4
Tighten the captive screws that secure the processor fan and heat-sink
assembly to the system board.
Connect the processor-fan cable to the system board.
Post-requisites
1
Follow the procedure from step 9 to step 10 in “Replacing the power-
2
85
Removing the processor
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Prerequisites
1
2
Follow the procedure from step 1 to step 2 in “Removing the power-
3
Procedure
1
Press the processor release-lever down and then pull it outwards to
release it from the securing tab.
2
Extend the processor release-lever completely to open the processor
cover.
86
3
Gently lift the processor and remove it from the processor socket.
1
processor release-lever
processor cover
processor
2
4
securing tab
3
5
processor socket
87
Replacing the processor
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
CAUTION: If either the processor or the heat sink is replaced, use the
thermal grease provided in the kit to ensure that thermal conductivity
is achieved.
NOTE: A new processor ships with a thermal pad in the package. In
some cases, the processor may ship with the thermal pad attached to it.
Procedure
1
Ensure that the release lever on the processor socket is fully extended in
the open position.
CAUTION: The pin-1 corner of the processor has a triangle that
aligns with the triangle on the pin-1 corner on the processor
socket. When the processor is properly seated, all four corners are
aligned at the same height. If one or more corners of the
processor are higher than the others, the processor is not seated
properly.
2
3
Align the pin-1 corner on the processor with the pin-1 corner on the
processor socket, and then place the processor in the processor socket.
When the processor is fully seated in the socket, close the processor
cover.
88
Removing the wireless card
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Prerequisites
1
2
Follow the procedure from step 1 to step 2 in “Removing the power-
Procedure
1
Locate the wireless-card slot on the system board.
2
3
Remove the screw that secures the wireless-card bracket to the wireless
card and the system board.
Remove the wireless-card bracket and disconnect the antenna cables
from the wireless card.
91
4
Slide and lift the wireless card off the system board.
1
M2 X 2.5 screw
2
4
6
wireless-card bracket
system board
3
5
antenna cables (2)
wireless-card slot
wireless card
92
Replacing the wireless card
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
CAUTION: To avoid damaging the wireless card, do not place any
cables under it.
1
Align the notch on the wireless card with the tab on the wireless-card
slot.
2
3
Slide the wireless card at an angle into the wireless-card slot.
Connect the antenna cables to the wireless card.
The following table provides the antenna-cable color scheme for the
wireless card supported by your computer.
Connectors on the wireless card
Main (white triangle)
Antenna-cable color
White
Black
Auxiliary (black triangle)
4
Align the screw hole on the wireless-card bracket with the screw hole on
the wireless card and the system board.
93
5
Replace the screw that secures the wireless-card bracket to the wireless
card and the system board.
1
wireless card
tab
2
4
6
8
notch (2)
3
5
7
system board
wireless card bracket
M2 X 2.5 screw
wireless card slot
antenna cables
Post-requisites
1
Follow the procedure from step 9 to step 10 in “Replacing the power-
2
94
Removing the antenna
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Prerequisites
1
2
Follow the procedure from step 1 to step 2 in “Removing the power-
3
4
Follow the procedure from step 1 to step 4 in Removing the wireless
card.
Procedure
1
Open the securing clip which secures the antenna cable to the chassis.
2
Remove the cables from the routing guide through the slot on the top of
the chassis.
95
3
Note the antenna-cable routing and remove the antenna cables from the
routing guides on the chassis.
1
antenna cable
chassis
2
4
securing clip
routing guide
3
96
4
Using a plastic scribe, pry the antenna off the chassis.
1
plastic scribe
routing guide
antenna cables
2
4
antenna (2)
chassis
3
5
97
Replacing the antenna
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Procedure
1
Adhere the antenna to the chassis.
2
3
4
Route the antenna cables through the slot on the top of the chassis.
Route the antenna cables through the routing guides on the chassis.
Secure the antenna cables to the chassis using the securing clip.
Post-requisites
1
Follow the procedure from step 3 to step 5 in “Replacing the wireless
card”.
2
3
Follow the procedure from step 9 to step 10 in “Replacing the power-
4
98
Removing the system board
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
NOTE: Your computer’s Service Tag is stored in the system board. You
must enter the Service Tag in the BIOS setup program after you replace
the system board.
NOTE: Replacing the system board removes any changes you have
made to the BIOS using the BIOS setup program. You must make the
appropriate changes again after you replace the system board.
NOTE: Before disconnecting the cables from the system board, note the
location of the connectors so that you can reconnect the cables
correctly after you replace the system board.
Prerequisites
1
2
Follow the procedure from step 1 to step 2 in “Removing the power-
3
4
5
6
7
8
Procedure
1
Disconnect all the cables connected to the system board.
2
Make note of the cable routing and remove the cables from the routing
guides.
99
3
4
Remove the screws that secure the system board to the chassis.
Lift the system board at an angle and remove it from the computer.
1
system board
chassis
2
#6-32 X 1/4'' screws (8)
3
100
Replacing the system board
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
NOTE: Your computer’s Service Tag is stored in the system board. You
must enter the Service Tag in the BIOS setup program after you replace
the system board.
NOTE: Replacing the system board removes any changes you have
made to the BIOS using the BIOS setup program. You must make the
appropriate changes again after you replace the system board.
Procedure
1
Slide the I/O ports on the system board into the slots on the chassis and
align the screw holes on the system board with the screw holes on the
chassis.
2
3
Replace the screws that secure the system board to the chassis.
Route and connect the cables that you disconnected from the system
board.
Post-requisites
1
2
3
4
5
6
7
Follow the procedure from step 9 to step 10 in “Replacing the power-
8
101
Flashing the BIOS
You may need to flash (update) the BIOS when an update is available or when
you replace the system board. To flash the BIOS:
1
2
3
Turn on your computer.
Click Product support, enter the Service Tag of your computer, and then
click Submit.
NOTE: If you do not have the Service Tag, use the auto-detect
feature or manually browse for your computer model.
4
5
6
7
Click Drivers & downloads → Find it myself.
Select the operating system installed on your computer.
Scroll down the page and expand BIOS.
Click Download to download the latest version of the BIOS for your
computer.
8
9
After the download is complete, navigate to the folder where you saved
the BIOS update file.
Double-click the BIOS update file icon and follow the instructions on the
screen.
102
BIOS setup program
Overview
CAUTION: Unless you are an expert computer user, do not change the
settings in the BIOS setup program. Certain changes can make your
computer work incorrectly.
NOTE: Before you change BIOS setup program, it is recommended that
you write down the BIOS setup program screen information for future
reference.
Use BIOS setup program to:
•
Get information about the hardware installed in your computer, such as
the amount of RAM, the size of the hard drive, and so on.
•
•
Change the system configuration information.
Set or change a user-selectable option, such as the user password, type of
hard drive installed, enabling or disabling base devices, and so on.
Entering BIOS setup program
1
Turn on (or restart) your computer.
2
During POST, when the DELL logo is displayed, watch for the F2 prompt
to appear, and then press F2 immediately.
NOTE: The F2 prompt indicates that the keyboard is initialized. This
prompt can appear very quickly, so you must watch for it, and then
press F2. If you press F2 before the F2 prompt, this keystroke is lost.
If you wait too long and the operating system logo appears,
continue to wait until you see the desktop. Then, turn off your
computer and try again.
System Setup Options
NOTE: Depending on your computer and its installed devices, the items
listed in this section may or may not appear.
103
Main
System Date
Displays the current date in
mm/dd/yyyy format.
System Time
Displays the current time in
hh:mm:ss format.
BIOS Information
BIOS Version
Displays the BIOS version number.
Product Information
Product Name
Service Tag
Displays the product name.
Allows you to enter the service tag
of your computer.
Asset Tag
Displays the asset tag of your
computer.
Memory Information
System Memory
Displays the total computer
memory installed.
Memory Speed
CPU Information
Processor Type
Processor ID
Displays the memory speed.
Displays the processor type
Displays the processor
identification code.
CPU Speed
Cache L1
Cache L2
Cache L3
Displays the speed of the
processor.
Displays the processor L1 cache
size.
Displays the processor L2 cache
size.
Displays the processor L3 cache
size.
104
Advanced
Advanced BIOS Features
Intel SpeedStep Technology
Allows you to enable or disable Intel
Speedstep Technology. Default:
Enabled.
NOTE: If enabled, the processor
clock speed and core voltage are
adjusted dynamically based on
the processor load.
Intel Virtualization Technology
VT for Direct I/O
Allows you to enable or disable Intel
Virtualization Technology feature for
the processor.
Allows you to enable or disable Intel
Virtualization Technology feature for
the Direct I/O.
SATA Operation
Allows you to configure the operating
mode of the integrated SATA hard
drive controller.
Intel Ready Mode Technology
Intel Software Guard Extensions
BIOS Recovery from Hard Drive
Allows you to enable or disable the
Intel Ready Mode Technology.
Allows you to enable or disable Intel
Software Guard Extensions.
Allows you to enable or disable BIOS
Recovery from hard drive.
USB Configuration
Front USB Ports
Allows you to enable or disable the
front USB ports.
Rear USB Ports
Allows you to enable or disable the
rear USB ports.
Power Options
Numlock Key
Allows you to set the status of the
Num Lock key during boot to On or
Off.
Wake Up by Integrated LAN
Allow the computer to be powered
on by special LAN signals.
105
Advanced
AC Recovery
Sets what action the computer takes
when power is restored.
Deep Sleep Control
Allows you to define the controls
when Deep Sleep is enabled.
USB Wake Support (S3)
USB PowerShare (S4/S5)
Allows you to enable the USB devices
to wake the computer from Standby.
Allows you to charge external
devices.
USB PowerShare Wake Support
(S4/S5)
Allows you to enable USB devices to
wake the computer from S4/S5.
Auto Power On
Auto Power On Mode
Allows you to set the computer to
turn on automatically every day or on
a preselected date. This option can
be configured only if the Auto Power
On mode is set to Enabled Everyday
or Selected Day.
Auto Power On Date
Auto Power On Time
Allows you to set the date on which
the computer must turn on
automatically. This option can be
configured only if the Auto Power On
mode is set to Enabled 1 to 31.
Allows you to set the time at which
the computer must turn on
automatically. This option can be
configured only if the Auto Power On
mode is set to Enabled hh:mm:ss.
Performance Options
Overclocking Feature
Core Over Clocking Level
Allows you enable or disable the
processor to adjust the flex ratio and
voltage in a turbo mode
environment.
Core Ratio Limit Override
Single Core
Allows you to set the core ratio limit.
Allows you to select single core or
multiple cores.
106
Advanced
Core Voltage Mode
Allows you to select between
adaptive and override voltage modes.
Core Voltage Offset
Allows you to set the override value
of core voltage.
Long Duration PWR Limit
Allows you to set the turbo mode
power limit.
Short Duration PWR Limit
Options
Allows you to set the turbo mode
power limit.
Security
Admin Password Status
System Password Status
HDD Password Status
Displays whether the admin
password is set.
Displays whether the system
password is set.
Displays if the hard drive password
is set.
Admin Password
System Password
HDD Password
Firmware TPM
Displays the admin password.
Displays the system password.
Displays the hard drive password.
Displays the firmware TPM.
Boot
Boot List Option
Displays the available boot devices.
File Browser Add Boot Option
Allows you to set the boot path in
the boot option list.
File Browser Del Boot Option
Secure Boot Control
Allows you to delete the boot path
in the boot option list.
Allows you to enable or disable the
secure boot control.
Load Legacy OPROM
Boot Option Priorities
Allows you to enable or disable the
Legacy Option ROM.
Displays the available boot devices.
107
Boot
Boot Option #1
Displays the first boot device.
Default: UEFI: Windows Boot
Manager.
Boot Option #2
Boot Option #3
Displays the second boot device.
Default: Onboard NIC Device.
Displays the third boot device.
Default: Onboard NIC Device.
Save & Exit
Save Changes and Reset
Allows you to exit system setup
and save your changes.
Discard Changes and Reset
Allows you to exit system setup
and load previous values for all
system setup options.
Restore Defaults
Allows you to load default values
for all system setup options.
Discard Changes
Save Changes
Allows you to exit your changes.
Allows you to save your changes.
Clearing forgotten passwords
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Prerequisites
1
2
Follow the procedure from step 1 to step 3 in “Removing the power-
108
4
Wait until the desktop is loaded and then shut down the system and
replace the jumper plug in its original location.
1
jumper plug
Post-requisites
1
2
Follow the procedure from step 9 to step 10 in “Replacing the power-
110
Clearing CMOS settings
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before working inside your computer. After working inside your
computer, follow the instructions in After working inside your
computer. For more safety best practices, see the Regulatory
Prerequisites
1
2
Follow the procedure from step 1 to step 3 in “Removing the power-
Procedure
1
Locate the CMOS reset jumper (CMCLR) on the system board.
NOTE: For more information on the location of the CMOS jumper,
2
3
Remove the power cord.
Remove the jumper plug from the password jumper-pins (PSWD) and
connect it to the CMOS jumper-pins.
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4
Wait for 5 seconds and then replace the jumper plug to the password
jumper-pins (PSWD).
1
jumper plug
2
CMOS jumper-pins
3
password jumper-pins
(PSWD)
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Diagnostics
The computer POST (Power On Self Test) ensures that it meets the basic
computer requirements and the hardware is working appropriately before the
boot process begins. If the computer passes the POST, the computer
continues to start in a normal mode. However, if the computer fails the POST,
the computer emits a series of LED codes during the start-up. The system
LED is integrated on the Power button.
The following table shows different light patterns, what they indicate, and the
suggested solutions.
Number of
LED flashes
Problem description
Suggested solution
1
System board: BIOS and Flash latest BIOS version. If
ROM failure
problem persists, replace the
system board.
2
No memory or RAM
detected
Confirm that the memory
module is installed properly. If
problem persists, replace the
memory module.
3
System board or chipset Replace the system board.
error
4
Memory or RAM failure
CMOS battery failure
Replace the memory module.
Replace the CMOS battery.
5
6
Video card or chip failure Replace the CMOS battery.
7
CPU failure
Replace the system board.
Reimage the computer.
3,6
Recovery image not
found
3,7
Recovery image found
but invalid
Reimage the computer.
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Getting help and contacting
Dell
Self-help resources
You can get information and help on Dell products and services using these
self-help resources:
services
Windows 8.1 and Windows 10
Windows 10
Dell Help & Support app
Get started app
Windows 8.1
Help + Tips app
Accessing help in Windows 8,
Windows 8.1, and Windows 10
In Windows search, type Help and
Support, and press Enter.
Accessing help in Windows 7
Click Start → Help and Support.
Online help for operating system
Troubleshooting information, user
manuals, setup instructions, product
specifications, technical help blogs,
drivers, software updates, and so on.
Learn about your operating system,
See Me and My Dell at
data backup, diagnostics, and so on.
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Contacting Dell
To contact Dell for sales, technical support, or customer service issues, see
NOTE: Availability varies by country and product, and some services may
not be available in your country.
NOTE: If you do not have an active internet connection, you can find
contact information on your purchase invoice, packing slip, bill, or Dell
product catalog.
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