Acer EL1210 Service Guide - Page 63

Beep Codes

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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. Symptom 1 short beep Continuous 1 long beep 1 long beep then 2 short beeps and repeat. 1 long beep then 1 short beep 2 short beeps Description System is ready. System is OK. Memory not installed or memory error. VGA not installed or VGA error. BIOS damaged. CMOS damaged. CMOS checksum error. Chapter 4 55

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Chapter 4
55
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.
Symptom
Description
1 short beep
System is ready.
System is OK.
Continuous 1 long beep
Memory not installed or memory error.
1 long beep then 2 short beeps and
repeat.
VGA not installed or VGA error.
1 long beep then 1 short beep
BIOS damaged.
2 short beeps
CMOS damaged.
CMOS checksum error.