Datasheet

69
4 Error Messages and Beep Codes
4.1 Speaker
The board-mounted speaker provides audible error code (beep code) information
during POST.
For information about Refer to
The location of the onboard speaker Figure 1, page 11
4.2 BIOS Beep Codes
Whenever a recoverable error occurs during POST, the BIOS causes the board’s
speaker to beep an error message describing the problem (see Table 36).
Table 36. BIOS Beep Codes
Type Pattern Frequency
Processor initialization
complete
One 0.5 second beep when the CPU initialization
process completes.
3270 Hz
POST complete One 0.5 second beep when POST completes. 3270 Hz
BIOS update in progress None
Video error On-off (0.5 seconds each) two times, then
3.0 second pause (off), entire pattern repeats
(beeps and pause) until the system is powered
off.
3270 Hz
When no VGA option ROM is
found.
Memory error On-off (0.5 seconds each) three times, then
3.0 second pause (off), entire pattern repeats
(beeps and pause) until the system is powered
off.
1280 Hz
Thermal trip warning On-off (0.5 seconds each) four times, then
3.0 second pause (off), entire pattern repeats
(beeps and pause) until the sixteenth beep, then
ends.
1280 Hz