Dell OptiPlex GX260 Troubleshooting Guide - Page 3

Solving Problems: Dell OptiPlex GX260 Systems User's Guide 4-2-2 Shutdown failure 4-2-3 Gate A20 failure 4-2-4 Unexpected interrupt in protected mode 4-3-1 4-3-3 Memory failure above address 0FFFFh Timer-chip counter 2 failure 4-3-4 Time-of-day clock stopped 4-4-1 4-4-4 Serial or parallel port test failure Cache test failure Contact Dell for technical assistance. Contact Dell for technical assistance. Contact Dell for technical assistance. Run the Dell Diagnostics. Contact Dell for technical assistance. Contact Dell for technical assistance. Run the Dell Diagnostics. Run the Dell Diagnostics. Card Problems Fill out the Diagnostics Checklist as you complete these checks. CAUTION: Before you perform this procedure, see "CAUTION: Safety Instructions." Check the card seating and cables 1. Turn off the computer and devices, disconnect them from their electrical outlets, wait 10 to 20 seconds, and open the computer cover. 2. Ensure that each card is firmly seated in its connector. Reseat any loose cards. 3. Ensure that all cables are firmly connected to their corresponding connectors on the cards. If any cables appear loose, reconnect them. For instructions on which cables should be attached to specific connectors on a card, see the card's documentation. 4. Close the computer cover, reconnect the computer and devices to electrical outlets, and turn them on. http://support.dell.com/support/edocs/systems/opgx260/en/ug/solvprob.htm (3 of 30) [10/25/2007 1:44:24 PM]