75
4
Board Status and Error Messages
4.1
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 38. These beep codes can be heard through a speaker attached to the board’s
line out audio jack (see Figure 5, B on page 27).
Table 39. BIOS Beep Codes
Type
Pattern
Frequency
BIOS update in progress None
Video error
(Note)
On-off (1.0 second each) two times, then
2.5-second pause (off), entire pattern repeats
(beeps and pause) once and the BIOS will
continue to boot.
932 Hz
When no VGA option ROM is
found.
Memory error
On-off (1.0 second each) three times, then
2.5-second pause (off), entire pattern repeats
(beeps and pause) until the system is powered
off.
932 Hz
Thermal trip warning
Alternate high and low beeps (1.0 second each)
for eight beeps, followed by system shut down.
High beep 2000 Hz
Low beep 1500 Hz
Note: Disabled per default BIOS setup option.
Summary of Contents for Desktop Board D2700MUD
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