
Troubleshooting BIOS Beep Codes
Pin-out for NIC four pin headers J53 & J55
1, 2 or 3 Reseat the memory, or replace with known good
modules.
4-7, 9-11 Fatal error indicating a serious problem with the
system. Consult your system manufacturer. Before
declaring the motherboard beyond all hope,
eliminate the possibility of interference by a
malfunctioning add-in card. Remove all expansion
cards except the video adapter.
• If the beep codes are generated even when all
other expansion cards are absent, the
motherboard has a serious problem. Consult your
system manufacturer.
• If the beep codes are not generated when all
other expansion cards are absent, one of the add-
in cards is causing the malfunction. Insert the
cards back into the system one at a time until the
problem happens again. This will reveal the
malfunctioning add-in card.
8If the system video adapter is an add-in card,
replace or reseat the video adapter. If the video
adapter is an integrated part of the system board,
the board may be faulty.
NIC four pin Header ‘Pin Out’ J53 & J55
Pin 1 = Link <> Yellow +
Pin 2 = Link <> Yellow -
Pin3 = Speed <> Green +
Pin4 = Speed <> Green -