Intel Desktop Board DH61AG Product Guide
54
Table 17. BIOS Speaker Beep Codes
Type Pattern Frequency/Comments
F2 Setup/F10 Boot
Menu Prompt
One 0.5 second beep when the BIOS is
ready to accept keyboard input
932 Hz
BIOS update in
progress
None
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 (beeps and pause) once and the
BIOS will continue to boot.
932 Hz
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 (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
BIOS Error Messages
The BIOS may also display an error message on the PC monitor when certain
recoverable error occurs during POST. Table 18 gives an explanation of the BIOS error
messages.
T
able 18. 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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Weight and Dimensions
