Error Messages And Beep Codes; Bios Front-Panel Power Led Codes; Bios Error Messages; Front-Panel Power Led Blink Codes - Intel BLKD945GCPE - LGA775 1066FSB 2DDR2 2GB Audio Video Lan mATX 10Pack Motherboard Technical Product Specification

4

Error Messages and Beep Codes

What This Chapter Contains

4.1 BIOS Front-panel Power LED Codes.................................................... 63

4.2 BIOS Error Messages ....................................................................... 63

4.3 Port 80h POST Codes ....................................................................... 64
4.1 BIOS Front-panel Power LED Codes
The front-panel power LED blinks off and on to display messages. For example, the
power LED is on when the system is powered on, and blinks off for 0.5 second when
processor initialization is complete. In addition, whenever a recoverable error occurs
during POST, the BIOS causes the front-panel power LED to blink an error message
describing the problem (see Table 30).
Table 30. Front-panel Power LED Blink Codes
Type
Processor initialization complete
POST complete
BIOS update in progress
Video error
Memory error
Thermal warning
4.2

BIOS Error Messages

Table 31 lists the error messages and provides a brief description of each.
Table 31. BIOS Error Messages
Error Message
CMOS Battery Low
CMOS Checksum Bad
Memory Size Decreased
No Boot Device Available
Pattern
On when system powers up, then off for 0.5 second.
On when system powers up, then off for 0.5 second.
Off when update begins, then on for 0.5 second, then off for 0.5
second; pattern repeats until BIOS update is complete.
On-off (0.5 second each) two times, then 3.0 second pause (off)
between on-off blink pattern; repeat entire pattern (two on-off
blinks and pause) until system is powered off.
On-off (0.5 second each) three times, then 3.0 second pause (off)
between on-off blink pattern; repeat entire pattern (three on-off
blinks and 3-second pause) until system is powered off.
On-off (0.5 second each) four times, then 3.0 second pause (off)
between on-off blink pattern; repeat entire pattern (four on-off
blinks and 3-second pause) until 16
Explanation
The battery may be losing power. Replace the battery soon.
The CMOS checksum is incorrect. CMOS memory may have been
corrupted. Run Setup to reset values.
Memory size has decreased since the last boot. If no memory was
removed then memory may be bad.
System did not find a device to boot.
th
on blink, then end.
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