Intel D2550DC2 Product guide for Intel Desktop Board D2550DC2 - Page 51

A Board Status and Error Messages, BIOS Beep Codes

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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 14. These beep codes can be heard through a speaker attached to the board's line out audio jack (see Figure 2, B on page 16) or the piezoelectric speaker header (see Figure 11, C). Table 14. BIOS Beep Codes Type Video error (Note) Memory error Thermal trip warning Pattern Frequency 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. 932 Hz When no VGA option ROM is found. On-off (1.0 second each) three times, then 932 Hz a 2.5-second 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. High beep 2000 Hz Low beep 1500 Hz Note: Disabled by default BIOS Setup option. 51

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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 14.
These beep codes can be heard through a speaker attached to the board’s
line out audio jack (see Figure 2, B on page 16) or the piezoelectric speaker header
(see Figure 11, C).
Table 14. BIOS Beep Codes
Type
Pattern
Frequency
Video error
(Note)
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.
932 Hz
When no VGA option ROM
is found.
Memory error
On-off (1.0 second each) three times, then
a 2.5-second pause (off); the 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 by default BIOS Setup option.