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POST Error Codes, Messages and FRU to Failure Information 107
Table 22. POST Memory Error 3-Beep Codes
Diagnostic LED Decoder
G=Green, R=Red, A=Amber
Beep
Code
Debug port
80h error
indicators
Hi Low
Meanings
FRU/Action
3 00h Off Off Off Off No memory was found in
the system.
1. Check DIMMs
3 01h Off Off Off G Memory mixed type
detected.
1. Check DIMMs
3 02h Off Off G Off EDO is not supported. 1. Check DIMMs
3 03h Off Off G G First row memory test
failure.
1. Check DIMMs
3 04h Off G Off Off Mismatched DIMMs in a
row.
1. Check DIMMs
3 05h Off G Off G Base memory test failure. 1. Check DIMMs
3 06h Off G G Off Failure on decompressing
post module.
1. Check DIMMs
3 07h-0Dh Off
G
G
G
G
G
G
G
Off
Off
Off
Off
G
G
G
Off
Off
G
G
Off
Off
G
Off
G
Off
G
Off
G
Generic memory error. 1. Check DIMMs
3 0Eh G G G Off SMBUS protocol error. 1. Check DIMMs
2. Check Firmware
3 0F-FFh All other combinations Generic memory error. 1. Check DIMMs