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4 Error Messages and Blink Codes
4.1 Front-panel Power LED Blink Codes
Whenever a recoverable error occurs during POST, the BIOS causes the kit’s front panel power
LED to blink an error message describing the problem (see Table 233).
Table 23. Front-panel Power LED Blink Codes
Solid on primary color. Indicates S0 state.
Default to On; can be disabled
via BIOS Setup
Blink primary color .25 seconds on, .25 seconds off,
indefinitely. Indicates S3 state.
changed via BIOS Setup
changed via BIOS Setup
BIOS update in progress Off when the update begins, then primary color on for
0.5 seconds, then off for 0.5 seconds. The pattern
repeats until the BIOS update is complete.
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.
Blink primary color .25 seconds on, .25 seconds off, .25
seconds on, .25 seconds off. This will result in a total of
16 blinks (blink for 8 seconds).
4.2 BIOS Error Messages
Table 244 lists the error messages and provides a brief description of each.
Table 24. BIOS Error Messages
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 has decreased since the last boot. If no memory was
removed, then memory may be bad.
System did not find a device to boot.
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