Error Messages and Beep Codes
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4.3 BIOS Error Messages
Table 44.
BIOS Error Messages
Error Message
Explanation
Gate A20 Error
Gate A20 on the keyboard controller is not working.
Address Line Short!
Error in the address decoding circuitry on the motherboard.
Cache Memory Bad, Do Not
Enable Cache!
Cache memory is defective. Replace it.
CH-2 Timer Error
There is an error in timer 2.
CMOS Battery State Low
CMOS RAM is powered by a battery. The battery power is low. Replace
the battery.
CMOS Checksum Failure
After CMOS RAM values are saved, a checksum value is generated for
error checking. The previous value is different from the current value. Run
Setup.
CMOS System Options Not
Set
The values stored in CMOS RAM are either corrupt or nonexistent. Run
Setup.
CMOS Display Type
Mismatch
The video type in CMOS RAM does not match the type detected by the
BIOS. Run Setup.
CMOS Memory Size
Mismatch
The amount of memory on the motherboard is different than the amount in
CMOS RAM. Run AMIBIOS Setup.
CMOS Time and Date Not
Set
Run Setup to set the date and time in CMOS RAM.
Diskette Boot Failure
The boot disk in floppy drive A: is corrupt. It cannot be used to boot the
computer. Use another boot disk and follow the screen instructions.
Display Switch Not Proper
The display jumper is not implemented on this product. This error should
not occur.
DMA Error
Error in the DMA controller.
DMA #1 Error
Error in the first DMA channel.
DMA #2 Error
Error in the second DMA channel.
FDD Controller Failure
The BIOS cannot communicate with the floppy disk drive controller. Check
all appropriate connections after the computer is powered down.
HDD Controller Failure
The BIOS cannot communicate with the hard disk drive controller. Check
all appropriate connections after the computer is powered down.
INTR #1 Error
Interrupt channel 1 failed POST.
INTR #2 Error
Interrupt channel 2 failed POST.
Invalid Boot Diskette
The BIOS can read the disk in floppy drive A:, but cannot boot the
computer. Use another boot disk.
Keyboard Is Locked...Unlock
It
The keyboard lock on the computer is engaged. The computer must be
unlocked to continue.
KB/Interface Error
There is an error in the keyboard connector.
On Board Parity Error
Parity error detected in memory.
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