American Megatrends 28 series, User Manual

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AMI EZ-Flex Base Board User's Guide
51
POST Errors
Errors can occur during POST (Power On Self Test),
performed every time the system is powered on.
Fatal errors (see below) are usually communicated through
a series of audible beeps. All errors except Beep Code 8 are
fatal errors. Fatal errors do not allow the system to continue
the boot process.
Displayed errors usually allow the system to continue the
boot process. They are described beginning on page 52.
AMI BIOS Beep Codes
Except for Beep Code 8, these codes are always fatal.
Beep Code Error message Description
1 beep Refresh Failure The memory refresh circuitry on the Base
Board is faulty.
2 beeps Parity Error A parity error was detected in the base
memory (the first 64 KB block) of memory.
3 beeps Base 64 KB Memory
Failure Memory failure in first 64 KB.
4 beeps Timer Not Operational A memory failure occurred within the first
64 KB of memory, or Timer 1 on the Base
Board is not functioning.
5 beeps Processor error The CPU (Central Processing Unit) on the
Base Board generated an error.
6 beeps 8042 - Gate A20 Failure 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.
7 beeps Processor Exception
Interrupt Error The CPU on the CPU Card generated an
exception interrupt.
8 beeps Display Memory
Read/Write Error The system video adapter is either missing
or its memory is faulty. This is not a fatal
error.
9 beeps ROM Checksum Error The ROM checksum value does not match
the value encoded in the BIOS.
10 beeps CMOS Shutdown Register The shutdown register for CMOS RAM