8042 - Gate A20 Failure; Fatal Errors; Processor Error; Beep Codes - American Megatrends Enterprise-III User Manual

Beep Codes

Fatal errors, listed below, are communicated through a series of audible beeps. All errors except
Beep Code 8 are fatal. Fatal errors halt the boot process.
In most cases, displayed errors allow the system to continue. AMIBIOS displayed errors are
described on page 81.
Chapter 4 AMIBIOS POST
80
Beeps Error message
1 Refresh Failure
2 Parity Error
3 Base 64 KB Memory
Failure
4 Timer Not Operational
5

Processor error

6

8042 - Gate A20 Failure

7 Processor Exception
Interrupt Error
8 Display Memory
Read/Write Error
9 ROM Checksum Error
10 CMOS Shutdown
Register Read/Write
Error
11 Cache memory bad —
do not enable cache
Description
The memory refresh circuitry on the motherboard
is faulty.
A parity error was detected in the base memory
(the first 64 KB block) of memory.
Memory failure in first 64 KB.
A memory failure occurred within the first 64 KB
of memory. Or Timer 1 on the motherboard is not
functioning.
The CPU generated an error.
Gate A20 on the keyboard controller (8042)
allows the CPU to operate in protected mode. The
BIOS is not able to switch the CPU to protected
mode.
The CPU generated an exception interrupt.
The system video adapter is either missing or its
memory is faulty. This is not a fatal error.
The ROM checksum does not match the value
encoded in the BIOS.
The shutdown register for CMOS RAM failed.
The cache memory test failed. Cache memory is
disabled.