Intel BOXDC53427HYE specifications Front-panel Power LED Blink Codes, Bios Error Messages

4Error Messages and Blink Codes

4.1Front-panel Power LED Blink Codes

Whenever a recoverable error occurs during POST, the BIOS causes the board’s front panel power LED to blink an error message describing the problem (see Table 26).

Table 26. Front-panel Power LED Blink Codes

Type	Pattern	Note
BIOS update in progress	Off when the update begins, then on for
	0.5 seconds, then off for 0.5 seconds. The
	pattern repeats until the BIOS update is
	complete.
Video error (Note)	On-off (1.0 second each) two times, then	When no VGA option ROM is
	2.5-second pause (off), entire pattern repeats	found.
	(blink and pause) until the system is powered
	off.
Memory error	On-off (1.0 second each) three times, then
	2.5-second pause (off), entire pattern repeats
	(blinks and pause) until the system is powered
	off.
Thermal trip warning	Each beep will be accompanied by the following
	blink pattern: .25 seconds on, .25 seconds off,
	.25 seconds on, .25 seconds off. This will result
	in a total of 16 blinks.

Note: Disabled per default BIOS setup option.

4.2BIOS Error Messages

Table 27 lists the error messages and provides a brief description of each.

Table 27. BIOS Error Messages

Error Message	Explanation
CMOS Battery Low	The battery may be losing power. Replace the battery soon.
CMOS Checksum Bad	The CMOS checksum is incorrect. CMOS memory may have
	been corrupted. Run Setup to reset values.
Memory Size Decreased	Memory size has decreased since the last boot. If no memory
	was removed, then memory may be bad.
No Boot Device Available	System did not find a device to boot.

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