I have a Dell XPS 430 PC with ATI adeon 4850 512MB graphic card.
Recently I've tried connecting a second monitor to my PC using the second DVI port. After a few minutes the diplays start to distort and shortly thereafter I get a blue screen fault. Multiple reboots are required to restore normal operation. I thought maybe the PC is overheating but ventilation seems fine and the onboard fan is working. The problem occurs even if two DVI cables are connected and monitor 2 is switched off. Both monitors work perfectly well in isolation as primary monitor.
I've tried setting BIOS to PCI and PEG but no difference. Any suggestions?
All drivers updated? If yes, download "speedfan" to monitor the temps. If temps are ok, we need the error / stop code from the blue screen. If you have that, either post it here or past it to google and see what comes up.