Troubleshooting System Problems - TYAN THUNDER 2 ATX Manual

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

Troubleshooting System Problems

If the computer beeps...
1, 2, or 3 times...
6 times...
8 times...
9 times...
11 times...
4, 5, 7, or 10 times...
Description
The memory refresh circuitry is faulty.
Parity error in the base memory (the first 64 KB block) of memory.
Memory failure in first 64 KB.
A memory failure in the first 64 KB of memory, or Timer 1 is not
functioning.
The CPU generated an error.
Cannot switch to protected mode.
The CPU on the CPU Card 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 value does not match the value encoded in
AMIBIOS.
The shutdown register for CMOS RAM has failed.
The cache memory test failed. Cache memory is disabled. Do not press
<Ctrl> <Alt> <Shift> <+> to enable cache memory.
then...
reseat the memory SIMMs or DIPs. If
the system still beeps, replace the
memory.
reseat the keyboard controller chip. If
it still beeps, replace the keyboard
controller. If it still beeps, try a
different keyboard, or replace the
keyboard fuse, if there is one.
there is a memory error on the video
adapter. Replace the video adapter, or
the RAM on the video adapter.
the BIOS ROM chip is bad. The
system probably needs a new BIOS
ROM chip.
reseat the cache memory on the
motherboard. If it still beeps, replace
the cache memory.
the motherboard must be replaced.
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