Lenovo IdeaCentre A300 - Manual (Page 23)

Chapter 6. Symptom-to-FRU Index
21
Error FRU/Action
The boot sector on the start-up
drive is corrupted. The drive must be formatted do the
following:
1. Attempt to back-up the data on
the failing hard disk drive.
2. Using the operating systems
programs format the hard disk
drive.
The drive is defective. Replace the hard disk drive.
POST error codes
Each time you power-on the system, it performs a series of tests that
check the operation of the system and some options. This series of tests is
called the Power-On Self-Test, or POST. POST does the following operations.
• Checks some basic system-board operations
• Checks the memory operation
• Starts the video operation
• Verifies that the boot drive is working
If the POST detects a problem, an error message appears on the screen.
A single problem can cause several error messages to appear. When you
correct the cause of the first error message, the other error messages
probably will not appear on the screen the next time you turn on the
system.
POST Error Message Description/Action
CMOS Date/Time Not Set The CMOS Date and/or Time are
invalid. This error can be resolved by
readjusting the system time in the
Setup Utility program.
CMOS Battery Low
CMOS Settings Wrong The CMOS battery is no longer
functional. Replace the battery.
CMOS Checksum Bad Checksum of CMOS is incorrect.
The computer loads the default
configuration settings. This error
might indicate that CMOS has
become corrupt due to a weak
CMOS battery.