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 . . . . . . . . . . . . . 2
discharge . . . . . . . . . . . . . . . . . . 3
Grounding requirements . . . . . . . . . . . . 4
Safety notices (multilingual translations) . . . . . . 4
information . . . . . . . . . . . . . . . 19
Strategy for replacing FRUs . . . . . . . . . .
drive . . . . . . . . . . . . . . . . .
board . . . . . . . . . . . . . . . . .
How to use error message . . . . . . . . .
and standard models. . . . . . . . . . . . .
Product definition . . . . . . . . . . . .
FRU identification . . . . . . . . . . . .
Chapter 3. General checkout . . . . . 23
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 . . . . . . . . . . . . . . . 29
Reset or restore Windows . . . . . . . . . . .
Passwords. . . . . . . . . . . . . . . . .
Power-on password . . . . . . . . . . .
NVMe password. . . . . . . . . . . . .
Supervisor password . . . . . . . . . . .
System management password. . . . . . .
How to remove the NVMe password . . . . .
password . . . . . . . . . . . . . . .
© Copyright Lenovo 2023
Power management . . . . . . . . . . . . .
Sleep mode . . . . . . . . . . . . . .
Hibernation mode . . . . . . . . . . . .
Symptom-to-FRU index . . . . . . . . . . .
Numeric error codes . . . . . . . . . . .
Error messages . . . . . . . . . . . . .
Beep errors. . . . . . . . . . . . . . .
No-beep symptoms . . . . . . . . . . .
LCD-related symptoms . . . . . . . . . .
Intermittent problems . . . . . . . . . . .
19
shortcuts . . . . . . . . . . . . . . . . 41
19
Chapter 6. Locations . . . . . . . . . 43
20
Front view . . . . . . . . . . . . . . .
20
Side view . . . . . . . . . . . . . . .
Bottom view . . . . . . . . . . . . . .
20
Locating FRUs and CRUs . . . . . . . . . . .
20
20
Miscellaneous parts and other FRUs . . . . .
Connector and cable guide . . . . . . . .
23
Looking up FRU information . . . . . . . . . .
24
24
notices . . . . . . . . . . . . . . . . . 55
25
Service tool kit . . . . . . . . . . . . . . .
25
Screw notices . . . . . . . . . . . . . . .
26
Retaining serial numbers . . . . . . . . . . .
26
27
unit . . . . . . . . . . . . . . . . . .
Retaining the UUID. . . . . . . . . . . .
27
27
FRU. . . . . . . . . . . . . . . . . . . 59
General guidelines. . . . . . . . . . . . . .
29
Before servicing the computer . . . . . . . . .
29
Disabling the built-in battery . . . . . . . .
29
Removing the SD card . . . . . . . . . .
29
Removing a major FRU . . . . . . . . . . . .
30
30
30
models) . . . . . . . . . . . . . . . .
31
models) . . . . . . . . . . . . . . . .
31
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32
32
33
33
34
35
35
37
37
38
38
43
43
45
46
46
48
50
50
54
55
55
56
56
57
58
59
60
60
60
60
61
62
62
i
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