Intel Desktop Board DH61BE Product Guide
68
Table 16. Front-panel Power LED Blink Codes
Type Pattern Note
F2 Setup/F10 Boot
Menu Prompt
None
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 (no add-
in graphics card
installed)
On-off (1.0 second each) two times, then a
2.5-second pause (off), the entire pattern
repeats (blink and pause) until the system
is powered off.
For processors requiring
an add-in graphics card
Memory error On-off (1.0 second each) three times, then
a 2.5-second pause (off), the 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 results in a total of
16 blinks.
BIOS Error Messages
When a recoverable error occurs during the POST, the BIOS displays an error message
describing the problem. Table 17 gives an explanation of
the BIOS error messages.
Table 17. 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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