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-All- games crashing to desktop... Huh?

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Hey everyone, I just got through building my new rig and installed a few games I had lying around. The problem is, after a random amount of time playing, each one of these games exits to the desktop without so much as an error message. Nothing. Just playing, then I'm at the desktop. Very strange. My specs:

CPU: Intel Core 2 Quad Q9450 2.66GHz
Mobo: Asus P5Q3 Deluxe
RAM: 2gb 7-7-7 OCZ DDR3 (waiting for another 2gb from store- they only had one kit in stock, and I forget the specifics, but whatever)
GPUs: 2x ATi Radeon HD4850s
HDD: WD VelociRaptor 300Gig 10k rpm
PSU: 1,000 watt modular PSU, don't remember the brand off the top of my head, but it's more than enough to power it.
OS: Windows XP SP2

The whole thing is in a huge case with more fans than I care to count, with a gigantic aftermarket active cooler on the CPU. Both HD4850s are running at around 80° C under load, which from some limited research seems to be perfectly normal, and the CPU never even goes above 45° C. This seems to rule out the possibility of an overheating problem...

The games that have crashed for me so far are Quake 4, Doom 3 and FEAR. None of these are super recent, and I'm running them all at maxed settings with 4x AA. Quake 4 and Doom 3 use the same engine, so I thought it might be specific to the software, but FEAR has also now begun exhibiting the same behavior. For a while before this happened I got VPU recover errors (basically telling me CCC had restarted my GPU because it had frozen) which no longer occur, so it -looks- like a video card problem. What it might be though, I do not know.

I've just tried updating my direct X to the latest from M$, the version I was using was from the installer from FEAR, which is a little old. I'll let you know how this goes, and if it helps at all. Video drivers are the latest (Well, the ONLY ones available for this card.. you can't even download them from ATi's site yet -_-.)

I'm hoping that, if it's not the DX issue I'm currently testing, it's just the fact that these cards are only about a week into their release, and ATi will come out with some sort of stability fix sometime soon. I'd appreciate it if anyone here (I know you guys know more about this stuff than I do, come on!) had any ideas, that they made them heard.



EDIT: Oh, and if this is more appropriate in another forum, such as hardware, let me know. Thanks!

EDIT2: WOW, okay. I was just browsing in Firefox, and it closed randomly the same way the games have been doing. Now I'm kinda freaked out >_<. I'm going to repost this somewhere else, as it's no longer only related to gaming.. >_<.

Edited by D3_Kamikaze, 24 June 2008 - 10:10 PM.

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make sure your motherboard bios is the most recent version, if not then you will need to update it. Also update your ati video drivers. I know they have released beta drivers since your original post. Although I don't see them on amd's site, I would recommend looking around for them.

You could also try only running one video card at a time to see if it's a crossfire issue.
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Well, I finally got it fixed. Turned out it was a memory issue, the store replaced it and all is well now. Thanks!
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