I have put together a computer based around an ASUS P6T motherboard. The computer runs Vista 64. Other potentially useful information -- it is running a pentium i7 core and a GeForce GTX 260, which are probably the main power draws. It's also got a 1 gig HD, 2 DVD drives, an ultra case with 3 fans, etc... I don't think I'm running an insane level of power draw, but I yield to experience. I can share anything else if there's something I'm overlooking here.
Also no doubt important here is that I am using an Ultra LSP 750W power supply. It came with the package I bought containing the CPU, mobo, and case.
Now, I have had occasional difficulties which have grown more frequent with 2 major issues: a continuous-beep error code (AMI bios) on startup occasionally, which can usually be remedied by turning off and back on; the computer will boot while making the noise, but it seems like a poor idea to use it while it is making that noise
-- and also the computer will restart (no warning) or lock up (making a static-y noise from the speakers -- thought it might be a driver issue but updated drivers and switched audio cards to test), usually while playing a game -- Mass Effect makes it cry, and that's not precisely a brand-new game.
Fix attempt 1:
Because the mobo was making the beeps, I contacted ASUS, who were very friendly and sent me a replacement BIOS chip. I replaced this and the computer came back on, yay. Loaded a game and after playing about an hour it rebooted, boo. Turned it back on and it made the same continuous-beep error code, double boo. Turn off and back on, and here I am posting this. Have not yet contacted ASUS about this; I can if it might be helpful.
A little more research and I'm thinking it might be a PSU issue -- especially because I read a website saying that insufficient power often looks like driver issues to the uninformed (like me). Now, I am using the PSU that came with the kit that I bought, and I was thinking that 750W sounded like a whole bunch (other similar kits had 650 watts), but that's me reading ads, not facts. I suppose the video card and processor might be power-intensive; they seem pretty good to me but they're not ridiculously good or anything. I did some more reading and found that some folks who sound like they know what they are talking about don't like the ultra psu's; haven't found any very good reviews but haven't looked that long. In particular, the dual rail thing sounds like a problem with distributing voltage.
A) see if I can get the psu replaced? should this unit be able to run my machine and maybe I got a bad one? Should still be under warranty.
get a new psu -- stick with the 750w but find a 'better' brand? What is a better brand? Note -- I do not like spending money, but I do not like a half-functional PC.
C) get a new psu that is more than 750w?
Or am I crazy and this is not a PSU issue at all? I appreciate any help that anyone can offer. This is the first time I have tried to build my own system from a kit, and while I love the price and the fun of it, this issue is making me sad on the inside.