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A Board Status and Error Messages
This appendix describes status and error messages generated by the Desktop Board’s
BIOS. The BIOS indicates these error messages with front-panel Power LED blink
codes, speaker beep codes, and by displaying text on the video monitor.
BIOS Beep Codes
The BIOS uses audible beep codes to signal status messages and error messages
indicating recoverable errors that occur during the POST. The beep codes are listed in
Table 17. These beep codes can be heard through a speaker attached to the board’s
line out audio jack (see Figure 3, B on page 17) or the piezoelectric speaker header
(see Figure 12, D).
Table 17. BIOS Beep Codes
Type Pattern Frequency
progress
On-off (1.0 second each) two times, then a
2.5-second pause (off); the entire pattern
repeats (beeps and pause) once and the
BIOS will continue to boot.
When no VGA option ROM
is found.
On-off (1.0 second each) three times, then
a 2.5-sec
ond pause (off); the entire pattern
repeats (beeps and pause) until the system
is powered off.
Alternate high and low beeps (1.0 second
each) for eight beeps, followed by system
shut down.
Low beep 1500 Hz
Note: Disabled by default BIOS Setup option.
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