
Contents
Chapter 1. Important safety
information. . . . . . . . . . . . . . . . 1
General safety . . . . . . . . . . . . . . . . 1
Electrical safety . . . . . . . . . . . . . . . . 2
Safety inspection guide . . . . . . . . . . . . . 3
Handling electrostatic discharge-sensitive
devices . . . . . . . . . . . . . . . . . . . 4
Grounding requirements . . . . . . . . . . . . 4
Safety notices (multi-lingual translations) . . . . . . 4
Chapter 2. Important servi e
information. . . . . . . . . . . . . . . 27
Strategy for replacing FRUs . . . . . . . . . . 27
Strategy for replacing a hard disk drive or a
solid-state drive . . . . . . . . . . . . . 27
Important notice for replacing a system
board . . . . . . . . . . . . . . . . . 27
How to use error codes . . . . . . . . . . 27
Strategy for replacing FRUs for CTO, special-bid,
and standard models. . . . . . . . . . . . . 28
Product definition . . . . . . . . . . . . 28
FRU identification . . . . . . . . . . . . 28
Chapter 3. Produ t overview . . . . . 29
Front . . . . . . . . . . . . . . . . . . . 29
Rear . . . . . . . . . . . . . . . . . . . 30
Chapter 4. Servi e he kout and
symptom-to-FRU index . . . . . . . . 31
Service checkout . . . . . . . . . . . . . . 31
Problem determination tips . . . . . . . . 31
Symptom-to-FRU index . . . . . . . . . . . 32
Hard disk drive boot error . . . . . . . . . 32
Power supply problems . . . . . . . . . . 33
Beep symptoms . . . . . . . . . . . . . 33
POST error codes . . . . . . . . . . . . 34
Miscellaneous error conditions . . . . . . . 35
Undetermined problems . . . . . . . . . 37
Chapter 5. Troubleshooting,
diagnosti s, and re overy . . . . . . . 39
Basic procedure for resolving computer
problems . . . . . . . . . . . . . . . . . 39
Troubleshooting . . . . . . . . . . . . . . 39
Startup problems . . . . . . . . . . . . 40
Audio problems . . . . . . . . . . . . . 41
etwork problems . . . . . . . . . . . . 42
Performance problems . . . . . . . . . . 44
Storage drive problems . . . . . . . . . . 45
CD or DVD problems . . . . . . . . . . . 45
Serial connector problems . . . . . . . . . 46
Software problems. . . . . . . . . . . . 46
Recovery . . . . . . . . . . . . . . . . . 46
Restore system files and settings to an earlier
point . . . . . . . . . . . . . . . . . 47
Restore your files from a backup . . . . . . 47
Reset your computer . . . . . . . . . . . 47
Use advanced options . . . . . . . . . . 47
Windows automatic recovery. . . . . . . . 47
Create and use a recovery USB device . . . . 47
Update the device driver . . . . . . . . . 48
Chapter 6. Hardware removal and
installation . . . . . . . . . . . . . . . 49
Handling static-sensitive devices . . . . . . . . 49
Service tool kit . . . . . . . . . . . . . . . 49
Major FRUs and CRUs . . . . . . . . . . . . 50
System board . . . . . . . . . . . . . . . 52
Removing and installing hardware . . . . . . . 52
External options . . . . . . . . . . . . . 53
Power cord. . . . . . . . . . . . . . . 53
Computer cover . . . . . . . . . . . . . 54
Front bezel . . . . . . . . . . . . . . . 56
Front I/O bracket . . . . . . . . . . . . 58
2.5–inch storage drive (for selected models) . . 60
Storage drive bay . . . . . . . . . . . . 61
3.5–inch storage drive . . . . . . . . . . 65
Storage drive rubber . . . . . . . . . . . 66
Storage drive bracket. . . . . . . . . . . 67
M.2 solid-state drive . . . . . . . . . . . 70
Coin-cell battery. . . . . . . . . . . . . 72
Memory module . . . . . . . . . . . . . 74
Card reader . . . . . . . . . . . . . . 77
Thermal sensor . . . . . . . . . . . . . 79
PCI-Express card . . . . . . . . . . . . 79
PCI-Express card holder . . . . . . . . . 82
Wi-Fi card . . . . . . . . . . . . . . . 84
Front Wi-Fi antenna . . . . . . . . . . . 87
Rear Wi-Fi antenna. . . . . . . . . . . . 88
Front fan. . . . . . . . . . . . . . . . 90
Rear fan . . . . . . . . . . . . . . . . 91
Microprocessor heatsink and fan assembly . . 93
Microprocessor . . . . . . . . . . . . . 95
Power supply assembly . . . . . . . . . . 98
System board. . . . . . . . . . . . . . 100
© Copyright Lenovo 2020 i