Acer Altos G901 - Manual (Page 237)

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BMC beep codes
The table below lists the beep codes generated by the BMC.
Beeps Reason
1-5-1-1 FRB failure (processor failure)
1-5-4-2 Power fault: DC power unexpectedly lost
(power control failures)
1-5-4-3 Chipset control failure
1-5-4-4 Power control fault
BB!H:11!vh!.!FO/cppl!!Qbhf!332!!Gsjebz-!Kbovbsz!28-!3114!!8;24!QN