Acer Aspire X3400G Acer Aspire X3400, X3400G Desktop Service Guide - Page 67

Troubleshooting POST BIOS Beep Codes Number of Beeps Description 1,3 Reseat the memory, or replace with known good modules. 6,7 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 beep codes are generated when all other expansion cards are absent, consult your system manufacturer's technical support.  If 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 card. 8 If 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. Chapter 4 59