Recently I bought GTA IV to play on my brand new PC. When the installation finished, I of course started the game. Looked great...for a while, until, out of nowhere my screen is filled by green pixels in a weird looking formation, something close to "..'.." with the apostrophe representing a pixel, and this little formation is replicated all over my screen randomly. Then, all keyboard and mouse functionality stop, and then The sound starts to lagggg but still plays. Nothing else really happens, but I'm forced to power off my computer.
Until this happens, the game is awesome, for the couple minutes it lasts. I thought it might just be the disc/game, but i installed Bioshock, and the same thing happened after a few minutes into the game, i also tried in windowed mode, same thing happened, except the colors changed blue, orange, etc.
Now comes the part where I give you my system specs.
Intel Core 2 Extreme X6800 @ 2.93GHz
2GB DDR2 RAM
512MB Nvidia GeForce 8800 GT Alpha Dog Extreme Edition
nForce 650i Ultra Motherboard
Windows XP SP3
Plus, my case is huge enough and I have 6 fans, not including CPU, GPU, and PSU, to pretty much rule out that the problem lies with it overheating.
Also, please note that I have a VGA output Monitor but a DVI-I output GPU, with an adpater to solve this. Although its trivial, I thought I might add it anyways.
YES, I do have the latest drivers for my GPU, monitor, etc. No, the cause cannot be something due to dust, age, defective parts as I can play my other game FarCry 2 just fine. Which is weird, because I cranked up the setting for FarCry 2, and no lag resulted as of it. While GTA IV is still lower than the recommended settings because even if I don't go into the gameplay of GTA IV, the game will freeze in the main menu. Yeah. That depresses me.
Note: I had outdated drivers for my Creative AudioPCI sound card, but im updating right now, to see if it might somehow be the problem.
My temps for GPU are around high 50's, to low 60's, and CPU is 60's as well
Are those temperatures at idle or load? It sounds like the card is overheating and causing these artifacts.
Run Furmark and Rivatuner simultaneously, to stress the GPU and monitor the temperatures and fan speeds.
One common cure is to downclock the card.
definately sounds like your videocard is overheating.
60 degrees wouldnt do it. +1 coozie. are you sure those arent the idle temps?
as for downclocking your card, its a terrible option. i had a 8800gts with a dying fan, overheating constantly, i literally glued a fan onto the outside. sure it takes up 3 slots, but it runs cooler than it ever did. better overclocks than ever on it.
Seems wierd, i started playing Crysis Warhead, and it ran fine, for about 15-20 minutes, then i decided to just exit, i tested bioshock, it played longer than usual, i guess because i switched to omega drivers, but after a while it still crashed. i cant seem to find the answer, i might have to underclock