Corrupt display, video card?

unholy414

Member
Jun 25, 2005
110
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0
Today while playing battleield2, my monitor's display went corrupt. It was just blocks of colors all moving around, like the card was trying to render the game, but instead went insane. It has happened 5 times in the time space of 30 minutes.

Other displays of corruption was a white screen with green dots all equally spaced apart, one with purple dots this time, another was vertical lines with a huge block moving around which was now my mouse pointer and then upon rebooting my BIOS spash screen was partially corrupt with some sort of "scrolling" corruption this time, like the Matrix and Neo did a roundhouse to my video card. I also got a corrupt display while typing this (omfg).

I'm suspecting that my video card is now fried, malfunctioning memory is probably the culprit as this was happening before. I took the heatsink off, removed the wax junk from it and the GPU and used arctic silver instead (month ago). Things were cool for about a month, and now today. I have also done a reformat when this was happening at the time I applied arctic silver to my card.


One more thing. Usually when the display is about to become corrupt, my CPU (not GPU) fan starts to rev up and rev down. It'll rev up for a good solid one second, then go back down to normal and just repeat until ****** happens. Like it's trying to find some sort of balance. I also have my CPU fan to adjust its fan speed to the cpu temp...but my case has like 4 fans on it, can't be overheating. Fans are 1 frontal intake, 1 blowing on card and 2 in rear as exhaust.


What are the causes of this behavior?

Windows XP Home SP2
AMD Athlon XP 2700+ (not OCed)
1GB kingston hyperX
Geforce FX 5950 Ultra
Soundblaster 2 Audigy Gamer
ASUS A7V8X motherboard
Antec 420watt powersupply 28A 40A 18a


-edit-
Wait a sec.....the cpu speed monitor judges how hard the fan works depending on how much juice the CPU is currently using, and the fan is reving up and down, could it be a faulty power supply?


-edit-
Does it in safe mode also with display drivers uninstalled. Problem not resolved even after driver reload. Ran driver cleaner.


-edit-
My 3.3v rail appears to be unstable. I swapped out my suspicious geforce FX 5950 ultra and put in a geforce 4 TI 4200 so I can actually get to desktop. ASUS probe says my 3.3v is unstable, fluctuating in the 2.9v'ish areas. After searching through google, I am about 90% sure it's the power supply. Looks like swapping cards took a bit of stress off the power supply.

-edit-
The reving of the CPU fan and the corrupt display screen, I've narrowed it to the power supply. The 3.3v current is not stable, the cpu fan and the agp slot run off of the 3.3v and they're not getting a stable current. Problem solved.
 

unholy414

Member
Jun 25, 2005
110
0
0
Found the answer to my problem. If anyone else if having/had this problem, check your voltages.