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HP Compaq dc7700 Business Desktop PC - Diagnostic LED and Beep Codes

Environment
HP Compaq dc7700 Business Desktop PC
Questions/Symptoms
Understand the Diagnostic LEDs and Beep Codes
Answer/Solution


The following table describes the dc7700 diagnostic LED and beep codes.

Diagnosis
Code
Power On
Steady Green
Processor thermal protection activated
Blinks red twice
Processor is not installed
Blinks red three times
Failure (power supply is overloaded)
Blinks red four times
Memory error
Blinks red and beeps five times
Pre-video graphics error
Blinks red and beeps six times
PCA (system board) failure, ROM detected failure before video
Blinks red and beeps seven times
Invalid ROM based on bad checksum
Blinks red and beeps eight times
System not fetching code
Blinks red and beeps nine times
Bad option card
Blinks red and beeps ten times
System does not power On
No blinks or beeps


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