Beep Codes - Acer RL100 Service Manual

Beep Codes

Beep codes are used by the BIOS to indicate a serious or fatal error to the end user. Beep codes are used
when an error occurs before the system video has been initialized. Beep codes will be generated by the
system board speaker, commonly referred to as the PC speaker.
AMIBIOS displays the checkpoints in the bottom right corner of the screen during POST. This display method
is limited, since it only displays checkpoints that occur after the video card has been activated.
Not all computers using AMIBIOS enable this feature. In most cases, a checkpoint card is the best tool for
viewing AMIBIOS checkpoints.
Beep Symptom
One short beep
Continuous one long beep
One long beep and two short beeps
then repeat.
One long beep then one short beep
Two short beeps
52
Cause and Description
System is OK.
Something is wrong with the memory installed.
Note that there could also be something wrong with just accessing
the memory (ie the motherboard has a problem).
The motherboard is not able to access the video card for some
reasons. Either the video card is not working, its memory is not
accessible, or its BIOS may be corrupt. This error code could also
mean something is wrong with the motherboard.
BIOS damaged.
Processor jump to BootBlock to execute the default procedure.
CMOS checksum error.
Chapter 4