Table of Contents
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Contents
About this manual. . . . . . . . . . .
Chapter 1. Safety information . . . . .
General safety . . . . . . . . . . . . . . .
Electrical safety . . . . . . . . . . . . . .
Safety inspection guide . . . . . . . . . . .
discharge. . . . . . . . . . . . . . . . .
Grounding requirements . . . . . . . . . . .
information . . . . . . . . . . . . . . 19
Strategy for replacing FRUs . . . . . . . . .
board . . . . . . . . . . . . . . . .
How to use error message . . . . . . . .
and standard models . . . . . . . . . . . .
Product definition . . . . . . . . . . . .
FRU identification. . . . . . . . . . . .
Chapter 3. General checkout . . . . . 23
What to do first . . . . . . . . . . . . . .
Checkout guide . . . . . . . . . . . . . .
Lenovo Solution Center . . . . . . . . .
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
product Recovery Disc Set . . . . . . . . . .
system . . . . . . . . . . . . . . . . . .
Resetting your computer . . . . . . . . .
Using advanced startup options . . . . . .
10 fails to start . . . . . . . . . . . . .
Passwords . . . . . . . . . . . . . . . .
Power-on password . . . . . . . . . . .
© Copyright Lenovo 2016
iii
Hard disk password . . . . . . . . . . .
Supervisor password . . . . . . . . . .
1
1
1
2
Sleep mode . . . . . . . . . . . . . .
3
Symptom-to-FRU index . . . . . . . . . . .
4
4
Error messages . . . . . . . . . . . .
Beep errors . . . . . . . . . . . . . .
Beep symptoms . . . . . . . . . . . .
No-beep symptoms . . . . . . . . . . .
19
LCD-related symptoms . . . . . . . . .
19
Intermittent problems . . . . . . . . . .
Undetermined problems . . . . . . . . .
20
20
Chapter 5. Function keys . . . . . . . 41
20
Chapter 6. Locations . . . . . . . . . 43
20
20
indicators. . . . . . . . . . . . . . . . .
Front view. . . . . . . . . . . . . . .
Left-side view . . . . . . . . . . . . .
23
Bottom view . . . . . . . . . . . . . .
24
Locating FRUs and CRUs . . . . . . . . . .
24
Major CRUs and FRUs. . . . . . . . . .
24
25
Connector and cable guide . . . . . . . .
25
Looking up FRU information . . . . . . . . .
26
26
notices . . . . . . . . . . . . . . . . 55
27
27
Screw notices . . . . . . . . . . . . . . .
Retaining serial numbers. . . . . . . . . . .
unit . . . . . . . . . . . . . . . . .
Retaining the UUID . . . . . . . . . . .
29
30
30
FRU . . . . . . . . . . . . . . . . . . 59
30
General guidelines . . . . . . . . . . . . .
30
Before servicing the computer . . . . . . . .
31
Disabling the built-in battery . . . . . . .
31
Removing a major FRU . . . . . . . . . . .
31
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32
32
33
33
33
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34
35
36
36
37
37
37
38
38
43
43
45
46
46
47
49
51
54
55
55
56
56
57
58
59
60
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60
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