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Contents
About this manual. . . . . . . . . . .
iii
Using the advanced startup options . . . .
39
Recovering your operating system if Windows
Chapter 1. Safety information . . . . . . 1
8 or Windows 8.1 fails to start . . . . . . .
39
General safety . . . . . . . . . . . . . . . .
1
Creating and using recovery media . . . . .
40
Electrical safety . . . . . . . . . . . . . . .
2
Passwords . . . . . . . . . . . . . . . .
41
Safety inspection guide . . . . . . . . . . . .
3
Power-on password . . . . . . . . . . .
41
Handling devices that are sensitive to electrostatic
Hard disk password . . . . . . . . . . .
41
discharge. . . . . . . . . . . . . . . . . .
3
Supervisor password . . . . . . . . . .
42
Grounding requirements . . . . . . . . . . . .
4
How to remove the power-on password . . .
42
Safety notices (multilingual translations) . . . . . .
4
How to remove the hard disk password . . .
42
Laser compliance statement (multilingual
Power management
. . . . . . . . . . . .
43
translations) . . . . . . . . . . . . . . . .
18
Screen blank mode (for the Windows 7
operating system only) . . . . . . . . . .
43
Chapter 2. Important service
Sleep mode . . . . . . . . . . . . . .
43
information . . . . . . . . . . . . . .
25
Hibernation mode
. . . . . . . . . . .
44
Strategy for replacing FRUs . . . . . . . . .
25
Symptom-to-FRU index . . . . . . . . . . .
44
Strategy for replacing a hard disk drive or a
solid-state drive . . . . . . . . . . . .
25
Numeric error codes
. . . . . . . . . .
45
Important notice for replacing a system
Error messages
. . . . . . . . . . . .
46
board . . . . . . . . . . . . . . . .
26
Beep symptoms . . . . . . . . . . . .
47
How to use error codes . . . . . . . . .
26
No-beep symptoms . . . . . . . . . . .
47
Strategy for replacing FRUs for CTO, special-bid,
LCD-related symptoms . . . . . . . . .
47
and standard models . . . . . . . . . . . .
26
Intermittent problems . . . . . . . . . .
48
Product definition . . . . . . . . . . . .
26
Undetermined problems . . . . . . . . .
48
FRU identification . . . . . . . . . . .
26
Chapter 5. Status indicators . . . . .
49
Chapter 3. General checkout . . . . .
29
What to do first . . . . . . . . . . . . . .
29
Chapter 6. Special keys . . . . . . . .
51
Checkout guide . . . . . . . . . . . . . .
30
Lenovo Solution Center . . . . . . . . .
30
Chapter 7. Locations . . . . . . . . .
53
Quick test programs. . . . . . . . . . .
30
Locating computer controls, connectors, and
indicators. . . . . . . . . . . . . . . . .
53
UEFI diagnostic program . . . . . . . . .
31
Front view. . . . . . . . . . . . . . .
53
Bootable diagnostic programs. . . . . . .
32
Rear view . . . . . . . . . . . . . . .
54
Power system checkout . . . . . . . . . . .
33
Bottom view . . . . . . . . . . . . . .
54
Checking the ac power adapter . . . . . .
33
Locating FRUs and CRUs . . . . . . . . . .
54
Checking operational charging
. . . . . .
33
Major FRUs and CRUs. . . . . . . . . .
56
Checking the battery pack . . . . . . . .
34
LCD FRUs and CRUs . . . . . . . . . .
58
Checking the coin-cell battery . . . . . . .
34
Miscellaneous kits and other FRUs . . . . .
59
Chapter 4. Related service
Looking up FRU information . . . . . . . . .
59
information . . . . . . . . . . . . . .
37
Chapter 8. FRU replacement
Restoring the factory contents by using the
Recovery Disc Set . . . . . . . . . . . . .
37
notices . . . . . . . . . . . . . . . .
61
Recovery overview for the Windows 8 and
Screw notices . . . . . . . . . . . . . . .
61
Windows 8.1 operating systems . . . . . . . .
38
Retaining serial numbers. . . . . . . . . . .
62
Refreshing your computer . . . . . . . .
38
Restoring the serial number of the system
Resetting your computer to the factory default
unit . . . . . . . . . . . . . . . . .
62
settings. . . . . . . . . . . . . . . .
38
Retaining the UUID . . . . . . . . . . .
63
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