Ami Bios Beep Codes - Panasonic JS-960 Series Service Manual

12. AMI BIOS Beep Codes

Beeps
1 short . DRAM refresh failure
2 short . . Memory parity error
3 short . . . Base 64K memory failure
4 short . . . . System timer failure
5 short . . . . . Processor error
6 short . . . . . . Gate A20 failure
7 short . . . . . . . Virtual mode processor exception error
8 short . . . . . . . . Display memory read/write error
9 short . . . . . . . . . ROM checksum error
10 short . . . . . . . . . . CMOS shutdown register read/write error
11 short . . . . . . . . . . . Cache error
1 long, 2 short - . . Failure in video system
1 long, 3 short - . . . Memory test failure
1 long, 8 short - . . . . . . . . . Display test failure
2 long - - POST Failure
1 long - POST has passed all tests
Error Message
The programmable interrupt timer or programmable interrupt controller has probably failed
A memory parity error has occurred in the first 64K of RAM. The RAM IC is probably bad
A memory failure has occurred in the first 64K of RAM. The RAM IC is probably bad
The system clock/timer IC has failed or there is a memory error in the first bank of memory
The system CPU has failed
The keyboard controller IC has failed, which is not allowing Gate A20 to switch the processor to protected mode. Replace the keyboard controller
The CPU has generated an exception error because of a fault in the CPU or motherboard circuitry
The system video adapter is missing or defective
The contents of the system BIOS ROM does not match the expected checksum value. The BIOS ROM is probably defective and should be
replaced
The shutdown for the CMOS has failed
The L2 cache is faulty
An error was encountered in the video BIOS ROM, or a horizontal retrace failure has been encountered
A fault has been detected in memory above 64KB
The video adapter is either missing or defective
One of the hardware test have failed
Description
12-1
Suspicion
Main PCB (U2)
Memory
Memory
Main PCB (U2) or Memory
CPU
Main PCB (U35)
CPU or Main PCB
CPU
Main PCB (U3)
Main PCB (U2)
CPU
Main PCB (U3)
Memory
CPU