If you can't narrow this down to driver issue, my first thought would be power supply going south. I've seen similar issues when the power supply isn't providing quite enough power to the system. Video card could be iffy or even mainboard. As for video stress test I still use a quake3 demo loop although I'm sure there are much better tests available.
lopaka ________________________________ From: Anthony Q. Martin <[email protected]> To: [email protected] Sent: Mon, March 15, 2010 6:35:17 AM Subject: [H] Testing Graphic Card Stability Ok.... I had a HIS ATI Radeon HD 5770 in this system. Tried all drivers available, using driver cleaner to remove previous drivers, etc, yet the same result persisted: Crashing.. Yesterday, my PC reboot several times during the day. On some days, it doesn't do that. I just loaded in A Sapphire Radeon HD 5770 in thsi system. While these cards are basically the same, performance wise, they boards are different as this one has to DVI ports on it while the other other only had one. Thus, the layouts of the boards are very different (I didn't want to risk getting the exact same board for fear of some fundamental problem in the board design from HIS or ATI). So far, and not much time has gone by since I just installed this board a couple of hours ago, things seem to be working. WEI works as done some program I got called Performance Test. My question is what software can I use the drive this video card in a loop to see if it really works or not? Or, am I going to have to see here and wait for a crash? Thanks.
