Lenovo ThinkPad E555 User Manual
Page 3
Contents
About this manual. . . . . . . . . . .
Chapter 1. Safety information . . . . . . 1
General safety . . . . . . . . . . . . . . . .
Electrical safety . . . . . . . . . . . . . . .
Safety inspection guide . . . . . . . . . . . .
Handling devices that are sensitive to electrostatic
discharge. . . . . . . . . . . . . . . . . .
Grounding requirements . . . . . . . . . . . .
Safety notices (multilingual translations) . . . . . .
Laser compliance statement (multilingual
translations) . . . . . . . . . . . . . . . .
Chapter 2. Important service
information . . . . . . . . . . . . . .
Strategy for replacing FRUs . . . . . . . . .
Strategy for replacing a hard disk drive or a
solid-state drive . . . . . . . . . . . .
Important notice for replacing a system
board . . . . . . . . . . . . . . . .
How to use error codes . . . . . . . . .
Strategy for replacing FRUs for CTO, special-bid,
and standard models . . . . . . . . . . . .
Product definition . . . . . . . . . . . .
FRU identification . . . . . . . . . . .
Chapter 3. General checkout . . . . .
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 . . . . . .
Checking the battery pack . . . . . . . .
Checking the coin-cell battery . . . . . . .
Chapter 4. Related service
information . . . . . . . . . . . . . .
Restoring the factory contents by using the
Recovery Disc Set . . . . . . . . . . . . .
Recovery overview for the Windows 8 and
Windows 8.1 operating systems . . . . . . . .
Refreshing your computer . . . . . . . .
Resetting your computer to the factory default
settings. . . . . . . . . . . . . . . .
Using the advanced startup options . . . .
Recovering your operating system if Windows
8 or Windows 8.1 fails to start . . . . . . .
Creating and using recovery media . . . . .
Passwords . . . . . . . . . . . . . . . .
Power-on password . . . . . . . . . . .
Hard disk password . . . . . . . . . . .
Supervisor password . . . . . . . . . .
How to remove the power-on password . . .
How to remove the hard disk password . . .
Screen blank mode (for the Windows 7
operating system only) . . . . . . . . . .
Sleep mode . . . . . . . . . . . . . .
Symptom-to-FRU index . . . . . . . . . . .
Beep symptoms . . . . . . . . . . . .
No-beep symptoms . . . . . . . . . . .
LCD-related symptoms . . . . . . . . .
Intermittent problems . . . . . . . . . .
Undetermined problems . . . . . . . . .
Chapter 5. Status indicators . . . . .
Chapter 6. Special keys . . . . . . . .
Chapter 7. Locations . . . . . . . . .
Locating computer controls, connectors, and
indicators. . . . . . . . . . . . . . . . .
Front view. . . . . . . . . . . . . . .
Rear view . . . . . . . . . . . . . . .
Bottom view . . . . . . . . . . . . . .
Locating FRUs and CRUs . . . . . . . . . .
Major FRUs and CRUs. . . . . . . . . .
LCD FRUs and CRUs . . . . . . . . . .
Miscellaneous kits and other FRUs . . . . .
Looking up FRU information . . . . . . . . .
Chapter 8. FRU replacement
notices . . . . . . . . . . . . . . . .
Screw notices . . . . . . . . . . . . . . .
Retaining serial numbers. . . . . . . . . . .
Restoring the serial number of the system
unit . . . . . . . . . . . . . . . . .
Retaining the UUID . . . . . . . . . . .
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