Table 4. Amber LED blinking failures (continued)
Amber LED state White LED state System state Notes
2 2 Bad MB, PSU or cabling Bad MBD, PSU or PSU
cabling - Rows B, C and D of
table 12.4 SIO spec [40]
2 3 Bad MBD, DIMMS, or CPU Bad MBD, DIMMS or CPU -
Rows F and K from table 12.4
of SIO spec [40]
2 4 Bad coin cell Bad coin cell - Row M of table
12.4 in SIO spec [40]
Table 5. States Under Host BIOS Control
Amber LED state White LED state System state Notes
2 5 BIOS state 1 BIOS Post code (Old LED
pattern 0001) Corrupt BIOS.
2 6 BIOS state 2 BIOS Post code (Old LED
pattern 0010) CPU config or
CPU failure.
2 7 BIOS state 3 BIOS Post code (Old LED
pattern 0011) MEM config
in process. Appropriate mem
modules detected but failure
has occurred.
3 1 BIOS state 4 BIOS Post code (Old LED
pattern 0100) Combine PCI
device config or failure with
video sub sytem config or
failure. BIOS to eliminate 0101
video code.
3 2 BIOS state 5 BIOS Post code (Old
LED pattern 0110) Combine
storage and USB config or
failure. BIOS to eliminate 0111
USB code.
3 3 BIOS state 6 BIOS Post code (Old LED
pattern 1000) MEM config, no
memory detected.
3 4 BIOS state 7 BIOS Post code (Old
LED pattern 1001) Fatal
Motherboard error.
3 5 BIOS state 8 BIOS Post code (Old LED
pattern 1010) Mem config,
modules incompatible or
invalid config.
3 6 BIOS state 9 BIOS Post code (Old
LED pattern 1011) combine
"Other pre-video activity and
resource configuration codes.
BIOS to eliminate 1100 code.
3 7 BIOS state 10 BIOS Post code (Old LED
pattern 1110) Other pre-post
activity, routine subsequent to
video init.
74 Troubleshooting
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