
Contents
Chapter 1. Important sa ety
in ormation. . . . . . . . . . . . . . . . 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 service
in ormation. . . . . . . . . . . . . . . 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 . . . . . . . . . . 28
Strategy for replacing FRUs for CTO, special-bid,
and standard models. . . . . . . . . . . . . 28
Product definition . . . . . . . . . . . . 28
FRU identification . . . . . . . . . . . . 28
Chapter 3. Product overview . . . . . 29
Front . . . . . . . . . . . . . . . . . . . 29
Rear . . . . . . . . . . . . . . . . . . . 30
Chapter 4. Service checkout 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. Diagnostics . . . . . . . . 39
Basic procedure for resolving computer
problems . . . . . . . . . . . . . . . . . 39
UEFI diagnostic program . . . . . . . . . . . 39
Lenovo diagnostic tools . . . . . . . . . . . 40
Use the Vantage app . . . . . . . . . . . . . 40
Self-help resources . . . . . . . . . . . . . 40
Chapter 6. Hardware removal and
installation . . . . . . . . . . . . . . . 43
Handling static-sensitive devices . . . . . . . . 43
Service tool kit . . . . . . . . . . . . . . . 43
Major FRUs and CRUs . . . . . . . . . . . . 44
System board . . . . . . . . . . . . . . . 48
Internal storage drives . . . . . . . . . . . . 50
Removing and installing hardware . . . . . . . 50
External options . . . . . . . . . . . . . 51
Computer cover . . . . . . . . . . . . . 51
Optical drive . . . . . . . . . . . . . . 52
Front bezel . . . . . . . . . . . . . . . 54
Primary storage drives . . . . . . . . . . 55
3.5-inch primary storage drive cage . . . . . 60
PCI-Express card . . . . . . . . . . . . 60
Graphics card fan . . . . . . . . . . . . 61
Graphics card. . . . . . . . . . . . . . 62
M.2 solid-state drive and heat sink . . . . . 66
M.2 solid-state drive bracket . . . . . . . . 67
Optical drive cage . . . . . . . . . . . . 68
Secondary storage drive . . . . . . . . . 70
Memory module . . . . . . . . . . . . . 71
Coin-cell battery. . . . . . . . . . . . . 73
Power supply assembly . . . . . . . . . . 73
E-lock . . . . . . . . . . . . . . . . . 74
Front fan. . . . . . . . . . . . . . . . 75
Rear fan . . . . . . . . . . . . . . . . 76
Chassis beam. . . . . . . . . . . . . . 77
Heat-sink-and-fan assembly . . . . . . . . 79
Front I/O bracket, power button cable, and
card reader. . . . . . . . . . . . . . . 81
Internal speaker . . . . . . . . . . . . . 83
Wi-Fi card . . . . . . . . . . . . . . . 83
Front Wi-Fi antenna . . . . . . . . . . . 84
Rear Wi-Fi antenna. . . . . . . . . . . . 85
ThinkStation LED . . . . . . . . . . . . 86
Thermal sensor . . . . . . . . . . . . . 87
Cover presence switch cable and bracket . . . 88
Microprocessor . . . . . . . . . . . . . 89
System board. . . . . . . . . . . . . . 90
VRM heat sink . . . . . . . . . . . . . 92
Chapter 7. Notices and
trademarks. . . . . . . . . . . . . . . 95
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