SeaSonic is my brand of choice. Most of the better Corsair power supplies (like the one you mentioned) are made by them. This one would be all you need for your set up.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817151095


I must ask though, is your PC a custom build or is a pre-built (like an HP or Dell)? Your GPU isn't power hungry and it seems odd that your power supply would be shutting off if its a pre-built and the video card came with it. Usually they won't pair up components like that if the power supply they include can't handle it.

I can say from experience that I murdered my Dell shipped PSU with my 8800(which was an expansion from the original build) over time. No excessive power draw it just worked it hard for a long time so if the system is on the older side it is possible the PSU just crapped out(or is on the way to as mine died slowly). Ya know the whole five minutes after your Dell warranty is up crapped out....that kind. Also others above mentioned a few other brands Seasonic and Silverstone and while I have no experience with them they are indeed also well rated PSU brands. I just prefer Corsair that by no means is an assumption that their aren't other brands that are totally capable. 80 Gold and a quality brand with good reviews is all you really need to look for....and in the end it might save you some bucks.

Yeah what do I know,
I'm only an MCSE who's been building gaming PCs since the 1980s...
Don't listen to me.

I think the only thing anyone was disagreeing on was the hardcoe technical reasons why those brands are better. I personally have no clue but what I do know is that we all agree that the same few brands are good. Bottom line and this is from personal experience of me beating the holy hell out of my gaming rigs that Corsair is well worth the money spent....past that I am no expert.

Back to the original problem posted, I had the same issue with Oblivion. Reinstalled it and all of a sudden the PC would shut off during play (but not when I was just using the PC), usually after 15 minutes. Only way to power back on was to unplug PSU and restart. Then it would stay running. Got a PSU tester from work and PSU was the problem. Replaced PSU and everything fine. The 1.5 upgrade was just coincidence.

Dude I can't even run Oblivion on my rig without it freezing......sigh.

It's always a good thing to get compressed air cans and clean everything inside your computer. Specially laptops- the fans can make or break your laptop if they aren't cleaned every few months.

Well Oblivion was always buggy. Extremely buggy. Had Bethesda not given Skyrim a new engine, I wouldn't have even pre-ordered the game.

So terrible even with the unofficial patch just doesn't want to run....my crapola Dell had no problems I think it is the OS....although I tried xp mode sp 2 and no dice either...UAC disabled, admin privileges. I honestly think it is my sound card though as sad as that is.

I use so much compressed air one would think I have a problem with huffing >.< Dustophobic

Have you tried downsampling the sound?

Tried everything short of pulling it and using my onboard.

starting to sound like a broken record in here. but I have to agree. it sounds like its your power supply. I just had one fry on me in december. have a nice black smoke stain on my wall behind my computer now. I got mine a Dynex 520-Watt for $30 at Geeks.com. Personally i'm not a fan of Dynex but wow $30. and my last power supply ran my rig at 400-Watt though that may be the reason it died too. haha!

That's because you obiviously buy cheap and crappy units. Quality units don't fry even when they don't have enough juice. I bet that Dynex or whatever is a peace of crap bomb(price says it all you don't get good 500W< unit that cheap).

Quality 400-450W would be more than enough. I do say QUALITY (Corsair HX/TX, Super Flower etc.). TX650W would an overkill by a far margin. Hell I've been running pretty highend SLI-rig with HX650W over 2 years and it's fine.