I bought my new EVGA GTX 460 768mb a few weeks back, and it has been locking up on me sporadically since I installed it. I've gone through three different drivers so far, no change, and it has been happening in multiple games.
So far I've tried it in Fallout New Vegas, where I can play for hours before it does it, or sometimes only a few minutes. Same thing happened in World of Warcraft, though on two occasions my computer didn't actually completely lock up; my monitor simply reported, "No input" for a few seconds, then came back up with WoW still running as if nothing had happened. Whenever it has recovered itself, I check EVGA precision's monitor graphs, which tell me that for a few seconds, everything it's reporting for: GPU temp, fan speed, GPU usage, GPU clock Mem clock, etc are all at 0%, they then jump back to where they were a before the monitor went "no signal".
The first thing I looked for was overheating, which isn't happening at all, it has locked up at anywhere from 40 degrees up to 60, the latter being the highest I've ever seen it go.
When hooking up the GPU first and second time (I've reseatted it once) I had to use the converter that comes with it that turns two molex (four prong power connectors right?) into a single 6pin connecter because the 460 requires two of them. I've since been wondering though, is there a particular way you're supposed to do that? I just grabbed two random molex connector's that weren't going to anything else and plugged them into the converter.
My specs are thus:
windows 7 64-bit
intel core 2 quad cpu q6600 2.4ghz
4 gigs of ram
antec 430W max
+12v1 max = 17a
+12v2 max = 16a
-12v max = 0.8a
I included the power supply details from the sticker because I think it might be at fault, I've been told by a friend that as long as the rails add up to 30a (or something like that) I'd be ok, but given what I'm going through now, I'd like a second opinion. I'm of course willing to buy a new PSU if that is what I need to do, but I'd like to be a little more sure of it before I spend the money on one, and honestly I'm not sure what I should go with if indeed I need a new one.
so here I am, making an appeal to the infinite wisdom of PCGamer and my fellow readers.