Dell Vostro 5470 User manual

Precision 5470
Service Manual
Regulatory Model: P154G
Regulatory Type: P154G001, P154G002
April 2022
Rev. A00

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.
© 2022 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other
trademarks may be trademarks of their respective owners.

Chapter 1: Working inside your computer...................................................................................... 6
Safety instructions.............................................................................................................................................................. 6
Before working inside your computer....................................................................................................................... 6
Safety precautions.........................................................................................................................................................7
Electrostatic discharge—ESD protection................................................................................................................7
ESD field service kit ..................................................................................................................................................... 8
Transporting sensitive components.......................................................................................................................... 9
After working inside your computer..........................................................................................................................9
BitLocker..........................................................................................................................................................................9
Chapter 2: Removing and installing components.......................................................................... 10
Recommended tools..........................................................................................................................................................10
Screw list............................................................................................................................................................................. 10
Major components of Precision 5470............................................................................................................................ 11
Base cover........................................................................................................................................................................... 13
Removing the base cover...........................................................................................................................................13
Installing the base cover.............................................................................................................................................15
M.2 solid-state drive......................................................................................................................................................... 16
Removing the M.2 2230 solid state drive.............................................................................................................. 16
Installing the M.2 2230 solid state drive.................................................................................................................17
Removing the M.2 2280 solid state drive.............................................................................................................. 19
Installing the M.2 2280 solid state drive................................................................................................................20
Battery.................................................................................................................................................................................. 21
Lithium-ion battery precautions............................................................................................................................... 21
Removing the battery.................................................................................................................................................22
Installing the battery...................................................................................................................................................23
Left fan................................................................................................................................................................................ 25
Removing the left fan.................................................................................................................................................25
Installing the left fan...................................................................................................................................................26
Right fan.............................................................................................................................................................................. 27
Removing the right fan.............................................................................................................................................. 27
Installing the right fan................................................................................................................................................ 29
Heat sink..............................................................................................................................................................................30
Removing the heat-sink for Integrated graphics.................................................................................................30
Installing the heat-sink for integrated graphics.................................................................................................... 31
Removing the heat-sink for discrete graphics...................................................................................................... 31
Installing the heat-sink for discrete graphics....................................................................................................... 32
Audio jack............................................................................................................................................................................ 33
Removing the audio jack............................................................................................................................................33
Installing the audio jack.............................................................................................................................................. 34
Speakers.............................................................................................................................................................................. 36
Removing the speaker................................................................................................................................................36
Installing the speaker.................................................................................................................................................. 37
Smart-card reader.............................................................................................................................................................38
Contents
Contents 3

Removing the smart-card reader............................................................................................................................ 38
Installing the smart-card reader...............................................................................................................................39
Display assembly.................................................................................................................................................................41
Removing the display assembly................................................................................................................................ 41
Installing the display assembly..................................................................................................................................43
System board......................................................................................................................................................................47
Removing the system board..................................................................................................................................... 47
Installing the system board....................................................................................................................................... 52
Power button with fingerprint reader.......................................................................................................................... 56
Removing the power button board with fingerprint reader..............................................................................56
Installing the power button board assembly with fingerprint reader.............................................................. 57
USH board...........................................................................................................................................................................58
Removing the USH board..........................................................................................................................................58
Installing the USH board............................................................................................................................................59
WLAN antennas.................................................................................................................................................................60
Removing the WLAN antennas................................................................................................................................ 60
Installing the WLAN antennas................................................................................................................................... 61
Palm-rest and keyboard assembly................................................................................................................................ 63
Removing the palm-rest and keyboard assembly................................................................................................ 63
Installing the palm-rest and keyboard assembly.................................................................................................. 63
Chapter 3: Drivers and downloads............................................................................................... 65
Chapter 4: BIOS setup.................................................................................................................66
BIOS overview................................................................................................................................................................... 66
Entering BIOS setup program........................................................................................................................................ 66
Navigation keys..................................................................................................................................................................66
One time boot menu......................................................................................................................................................... 67
BIOS setup options........................................................................................................................................................... 67
Updating the BIOS............................................................................................................................................................ 78
Updating the BIOS in Windows................................................................................................................................ 78
Updating the BIOS in Linux and Ubuntu................................................................................................................ 79
Updating the BIOS using the USB drive in Windows..........................................................................................79
Updating the BIOS from the F12 One-Time boot menu.....................................................................................79
System and setup password...........................................................................................................................................80
Assigning a system setup password....................................................................................................................... 80
Deleting or changing an existing system setup password..................................................................................81
Clearing BIOS (System Setup) and System passwords........................................................................................... 81
Chapter 5: Troubleshooting.........................................................................................................82
Handling swollen Lithium-ion batteries........................................................................................................................ 82
Dell SupportAssist Pre-boot System Performance Check diagnostics................................................................82
Running the SupportAssist Pre-Boot System Performance Check................................................................83
Built-in self-test (BIST)................................................................................................................................................... 83
M-BIST...........................................................................................................................................................................83
LCD Power rail test (L-BIST)................................................................................................................................... 84
LCD Built-in Self Test (BIST)................................................................................................................................... 84
System-diagnostic lights................................................................................................................................................. 84
Recovering the operating system................................................................................................................................. 86
4Contents

Backup media and recovery options.............................................................................................................................86
WiFi power cycle............................................................................................................................................................... 86
Drain residual flea power (perform hard reset)......................................................................................................... 87
Chapter 6: Getting help and contacting Dell................................................................................ 88
Contents 5