Error Beeps and Message
Beeps
2
3
4
5
6
7
8
9
1 0
1 1
Error can occur during POST (Power On Self Test), which is
performed every time the system is powered on. Fatal errors are
communicated through a series of audible beeps. All errors ex
cept Beep Code 8 are fatal errors. Fatal errors do not allow the
system to continue the boot process. Most displayed errors allow
the system to continue the boot process.
Error message
Description
Refresh Failure
The memory refresh circuitry on the mainboard is
faulty.
Parity Error
Parity error in the first 64KB of memory.
Base 64KB Memory
Memory failure in first 64KB.
Failure
Timer Not Operational
Memory failure in the first 64KB of memory, or
Timer
I
on the main board is not functioning.
Processor error
The CPU on the main board generated an error.
8042 - Gate A20 Failure
The keyboard controller (8042) may be bad.
The
BIOS cannot switch to protected mode.
Processor Exception
The CPU generated an exception interrupt.
interrupt Error
Display Memory Read/
The system video adapter is either missing or its
Write Error
memory is fault error.
ROM Checksum Error
The ROM checksum value does not match the value
encoded in the BIOS
CMOS Shutdown
The shutdown register for CMOS
RAM
failed.
Register Read/Write
Error
Cache Error/External
The external cache is faulty.
Cache Bad
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56 User's Manual
