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D.6.1
Troubleshooting BIOS Beep Codes
Number of Beeps
1, 2 or 3
4-7, 9-11
8
5
Processor error
6
Keyboard controller BAT test error.
7
General exception error.
8
Display memory error.
9
ROM checksum error
10
CMOS shutdown register read/write error
11
Cache memory bad
Troubleshooting Action
Reseat the memory, or replace with known good modules.
Fatal error indicating a serious problem with the system. Consult your system
manufacturer.
Before declaring the motherboard beyond all hope, eliminate the possibility of
interference by a malfunctioning add-in card. Remove all expansion cards cards
except the video adapter.
• If the beep codes are generated even when all other expansion cards are absent,
the motherboard has a serious problem. Consult your system manufacturer.
• If the beep codes are not generated when all other expansion cards are absent,
one of the add-in cards is causing the malfunction. Insert the cards back into the
system one at a time until the problem happens again. This will reveal the
malfunctioning add-in card.
If the system video adapter is an add-in card, replace or reseat the video adapter. If
the video adapter is an integrated part of the system board, the board may be
faulty.
D-6
AT8001 User's Guide
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