Table of Contents
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Contents
About this manual . . . . . . . . . . . . iii
Chapter 1. Safety information . . . . . . 1
General safety . . . . . . . . . . . . . . . . 1
Electrical safety . . . . . . . . . . . . . . . . 1
Safety inspection guide . . . . . . . . . . . . . 3
discharge . . . . . . . . . . . . . . . . . . 3
Grounding requirements . . . . . . . . . . . . 4
Safety notices (multilingual translations) . . . . . . 4
information . . . . . . . . . . . . . . . 19
Strategy for replacing FRUs . . . . . . . . . .
How to use error message . . . . . . . . .
and standard models. . . . . . . . . . . . .
Product definition . . . . . . . . . . . .
FRU identification . . . . . . . . . . . .
Chapter 3. General checkout . . . . . 21
What to do first . . . . . . . . . . . . . . .
Checkout guide . . . . . . . . . . . . . . .
Diagnosing problems . . . . . . . . . . .
Quick test programs . . . . . . . . . . .
UEFI diagnostic program . . . . . . . . .
Bootable diagnostic programs . . . . . . .
Power system checkout . . . . . . . . . . .
Checking the ac power adapter . . . . . . .
charging . . . . . . . . . . . . . . . .
Checking the coin-cell battery . . . . . . .
information . . . . . . . . . . . . . . . 27
Reset or restore Windows . . . . . . . . . . .
Use Lenovo recovery options. . . . . . . .
Use Window recovery options . . . . . . .
Passwords. . . . . . . . . . . . . . . . .
Power-on password . . . . . . . . . . .
NVMe passwords . . . . . . . . . . . .
Supervisor password . . . . . . . . . . .
System management password. . . . . . .
How to remove the NVMe password . . . . .
password . . . . . . . . . . . . . . .
© Copyright Lenovo 2024
Power management . . . . . . . . . . . . .
Sleep mode . . . . . . . . . . . . . .
Hibernation mode . . . . . . . . . . . .
Symptom-to-FRU index . . . . . . . . . . .
Numeric error codes . . . . . . . . . . .
Error messages . . . . . . . . . . . . .
No-beep symptoms . . . . . . . . . . .
LCD-related symptoms . . . . . . . . . .
Intermittent problems . . . . . . . . . . .
Chapter 5. Special keys . . . . . . . . 39
19
19
Chapter 6. Locations . . . . . . . . . 41
20
Front . . . . . . . . . . . . . . . . .
20
Left and right . . . . . . . . . . . . . .
20
Bottom . . . . . . . . . . . . . . . .
20
Locating FRUs and CRUs . . . . . . . . . . .
Major FRUs and CRUs . . . . . . . . . .
LCD FRUs and CRUs . . . . . . . . . . .
21
Miscellaneous parts . . . . . . . . . . .
22
Connector and cable guide . . . . . . . .
22
Looking up FRU information . . . . . . . . . .
23
23
24
notices . . . . . . . . . . . . . . . . . 53
24
Service tool kit . . . . . . . . . . . . . . .
25
Screw notices . . . . . . . . . . . . . . .
Retaining serial numbers . . . . . . . . . . .
25
26
unit . . . . . . . . . . . . . . . . . .
Retaining the UUID. . . . . . . . . . . .
27
27
FRU. . . . . . . . . . . . . . . . . . . 57
27
General guidelines. . . . . . . . . . . . . .
27
Before servicing the computer . . . . . . . . .
27
Disabling the built-in battery . . . . . . . .
27
28
card tray . . . . . . . . . . . . . . . .
28
29
29
models) . . . . . . . . . . . . . . . . . .
29
Type 1. . . . . . . . . . . . . . . . .
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30
30
31
31
32
33
33
35
36
37
37
41
41
42
43
44
45
47
49
49
52
53
53
54
54
55
56
57
57
57
58
58
59
60
61
i
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