Table of Contents
Advertisement
• For Windows 7: Click the arrow beside the Shutdown icon from the Start menu, and then select Sleep.
To return from sleep mode, press the Fn key.
• For Windows 8: Move the cursor to the bottom-right corner of the screen to display the charms. Then
click Settings ➙ Power ➙ Sleep.
In certain circumstances, the computer goes into sleep mode automatically:
• After a period of inactivity specified in power plan settings
• When the battery power is low
To cause the computer to return from sleep mode and resume operation, do one of the following:
• Press the Fn key.
• Open the LCD cover.
• Turn on the power button.
Hibernation mode
In hibernation mode, the following occurs:
• The system status, RAM, VRAM, and setup data are stored on the hard disk drive or solid-state drive.
• The system is powered off.
If you have defined one of the following actions as the event that causes the system to go into hibernation
mode, perform that action.
• Closing the lid.
• Pressing the power button.
Also, the computer goes into hibernation mode automatically after a period of inactivity specified in power
plan settings.
When the power is turned on, the computer returns from hibernation mode and resumes operation. The
hibernation file in the boot record on the hard disk drive or solid-state drive is read, and system status is
restored from the hard disk drive or solid-state drive.
Symptom-to-FRU index
This section contains following information:
•
"Numeric error codes" on page 36
•
"Error messages" on page 37
•
"Beep symptoms" on page 37
•
"No-beep symptoms" on page 37
•
"LCD-related symptoms" on page 37
•
"Intermittent problems" on page 38
•
"Undetermined problems" on page 38
The symptom-to-FRU index in this section lists symptoms and errors and their possible causes. The most
likely cause is listed first, in boldface type.
Note: Do the FRU replacement or other actions in the sequence shown in the column headed "FRU or
action, in sequence." If replacing a FRU does not solve the problem, put the original part back in the
computer. Do not replace a nondefective FRU.
This index can also help you determine, during regular servicing, what FRUs are likely to need to be
replaced next.
.
Chapter 4
Related service information
35
Advertisement
Table of Contents
