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Dell XPS 15 9570 XPS 15 Service Manual - Page 43

Removing the system-board assembly, Prerequisites, Procedure, ﬁngerprint - bios

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25 Removing the system-board 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 Compliance home page at www.dell.com/ regulatory_compliance. 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 NOTE: Remove the SD card before removing the system board to avoid damage to the SD card. 1 Remove the base cover. 2 Remove the battery (half-length) or the battery (full-length). 3 Remove the memory modules. 4 Follow the procedure from step 1 to step 4 in "Removing the hard drive". 5 Remove the solid-state drive (half-length) or the solid-state drive (full-length). 6 Remove the wireless card. 7 Remove the fans. 8 Remove the heat sink. Procedure NOTE: The touch-screen cable is available only on laptop configurations with touch displays. 1 Disconnect the power-adapter port cable and speaker cable from the system-board assembly. 2 Open the latch and disconnect the keyboard-control board cable and touchpad cable from the system-board assembly. 3 Peel the tape to access the fingerprint reader cable. 4 Open the latch and disconnect the fingerprint reader cable (optional) from the system-board assembly. 5 Peel off the tape that secures the touch-screen cable to the system-board assembly if applicable. 6 Peel the tape and then disconnect the touch-screen cable from the system-board assembly if applicable. Removing the system-board assembly 43

Section	Page
XPS 15 Service Manual	3
Before working inside your computer	8
Before you begin	8
Safety instructions	8
Recommended tools	8
Screw list	9
After working inside your computer	11
Removing the base cover	12
Procedure	12
Replacing the base cover	14
Procedure	14
Removing the battery (half-length)	15
Lithium-ion battery precautions	15
Prerequisites	15
Procedure	15
Replacing the battery (half-length)	17
Lithium-ion battery precautions	17
Procedure	17
Post-requisites	17
Removing the battery (full-length)	18
Lithium-ion battery precautions	18
Prerequisites	18
Procedure	18
Replacing the battery (full-length)	20
Lithium-ion battery precautions	20
Procedure	20
Post-requisites	20
Removing the memory modules	21
Prerequisites	21
Procedure	21
Replacing the memory modules	22
Procedure	22
Post-requisites	22
Removing the hard drive	23
Prerequisites	23
Procedure	23
Replacing the hard drive	26
Procedure	26
Post-requisites	26
Removing the solid-state drive (half-length)	27
Prerequisites	27
Procedure	27
Replacing the solid-state drive (half-length)	29
Procedure	29
Post-requisites	29
Removing the solid-state drive (full-length)	30
Prerequisites	30
Procedure	30
Replacing the solid-state drive (full-length)	32
Procedure	32
Post-requisites	32
Removing the speakers	33
Prerequisites	33
Procedure	33
Replacing the speakers	34
Procedure	34
Post-requisites	34
Removing the wireless card	35
Prerequisites	35
Procedure	35
Replacing the wireless card	36
Procedure	36
Post-requisites	37
Removing the fans	38
Prerequisites	38
Procedure	38
Replacing the fans	40
Procedure	40
Post-requisites	40
Removing the heat sink	41
Prerequisites	41
Procedure	41
Replacing the heat sink	42
Procedure	42
Post-requisites	42
Removing the system-board assembly	43
Prerequisites	43
Procedure	43
Replacing the system-board assembly	46
Procedure	46
Post-requisites	46
Removing the audio daughter-board	47
Prerequisites	47
Procedure	47
Replacing the audio daughter-board	49
Procedure	49
Post-requisites	49
Removing the coin-cell battery	50
Prerequisites	50
Procedure	50
Replacing the coin-cell battery	52
Procedure	52
Post-requisites	52
Removing the keyboard	53
Prerequisites	53
Procedure	53
Replacing the keyboard	55
Procedure	55
Post-requisites	55
Removing the power-button module	56
Prerequisites	56
Procedure	56
Replacing the power-button module	57
Procedure	57
Post-requisites	57
Removing the fingerprint reader daughter-board (optional)	58
Prerequisites	58
Procedure	58
Replacing the fingerprint reader daughter board (optional)	60
Procedure	60
Post-requisites	60
Removing the display assembly	61
Prerequisites	61
Procedure	61
Replacing the display assembly	64
Procedure	64
Post-requisites	64
Removing the power-adapter port	65
Prerequisites	65
Procedure	65
Replacing the power-adapter port	66
Procedure	66
Post-requisites	66
Removing the antenna cover	67
Prerequisites	67
Procedure	67
Replacing the antenna cover	69
Procedure	69
Post-requisites	69
Removing the antenna module	70
Prerequisites	70
Procedure	70
Replacing the antenna module	72
Procedure	72
Post-requisites	72
Removing the palm-rest assembly	73
Prerequisites	73
Procedure	73
Replacing the palm-rest assembly	75
Procedure	75
Post-requisites	75
Downloading drivers	76
Downloading the audio driver	76
Downloading the graphics driver	76
Downloading the chipset driver	77
Downloading the USB driver	78
Downloading the chipset driver	78
Downloading the network driver	79
Downloading the fingerprint reader driver	80
System setup	81
Boot Sequence	81
Navigation keys	81
System setup	81
Entering BIOS setup program	82
Enabling or disabling the USB in BIOS setup program	82
Identifying the hard drive in BIOS setup program	82
Checking the system memory in BIOS setup program	82
System setup options	82
System and setup password	88
Assigning a system setup password	88
Deleting or changing an existing system setup password	88
Clearing BIOS (System Setup) and System passwords	89
Clearing CMOS settings	89
Real Time Clock (RTC) battery reset	89
Flashing BIOS (USB key)	89
Troubleshooting	90
Flashing the BIOS	90
Reinstall Windows using a USB recovery drive	90
Fixing a no-boot issue caused by USB-boot support	90
Enhanced Pre-Boot System Assessment (ePSA) diagnostics	91
Running the ePSA Diagnostics	91
Diagnostics	92
Flea power release	93
Wi-Fi power cycle	93
Getting help and contacting Dell	94
Self-help resources	94

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Removing the system-board 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 Compliance home page at

www.dell.com/

regulatory_compliance

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

NOTE:

Remove the SD card before removing the system board to avoid damage to the SD card.

Remove the

base cover

Remove the

battery (half-length)

or the

battery (full-length)

Remove the

memory modules

Follow the procedure from step 1 to step 4 in “

Removing the hard drive

”.

Remove the

solid-state drive (half-length)

or the

solid-state drive (full-length)

Remove the

wireless card

Remove the

fans

Remove the

heat sink

Procedure

NOTE:

The touch-screen cable is available only on laptop

conﬁgurations

with touch displays.

Disconnect the power-adapter port cable and speaker cable from the system-board assembly.

Open the latch and disconnect the keyboard-control board cable and touchpad cable from the system-board assembly.

Peel the tape to access the

ﬁngerprint

reader cable.

Open the latch and disconnect the

ﬁngerprint

reader cable (optional) from the system-board assembly.

Peel

oﬀ

the tape that secures the touch-screen cable to the system-board assembly if applicable.

Peel the tape and then disconnect the touch-screen cable from the system-board assembly if applicable.

Removing the system-board assembly