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The PC-building/hardware knowledge thread

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Dimmukane:
Yeah, usually it's just the fan, but like he said, it's easier to get a new power supply than open that one up to replace the fan.

dennis:
Yeah. If you want to replace the fan, you have to take the PSU out of the case anyway, so you might as well get a new PSU while you're at it. Replacing the fan will probably void any warranty still active on it.

If it's an expensive, nice power supply, it might be worth it to RMA it, but if it came with your case/computer, definitely just get a new one.

Nodaisho:
Dennis, you ought to be able to run CoD4 at higher than that with a 7900GT, I can run at 1280x1024 with a 7900 GS.

These estimates for the cost of a computer capable of gaming seem kind of high, I made a mistake getting mine and got one that I ended up having to replace almost everything (the processor, RAM, and HD are all that is left, and I had to get a new HD because it was only 40gigs), but I only spent $510 or so on mine so far, it would be 560USD if I had had to buy the hard drive rather than taking it from a dead computer I had lying around. It would have been cheaper if I hadn't gotten the Dell which was incompatible with just about everything.

dennis:
It gets a little too choppy for me at 1280x960, but I think that's because I'm CPU limited rather than GPU limited on that machine.

bicostp:
Completely remove the power supply, take it outside, and blow it out with either an air compressor or canned air. The fan might just be clogged up with dust and pet hair, and this fix is the easiest and cheapest, so it wouldn't hurt to try. (Air compressors are great; you can get a cheap one at the hardware store, or order an air tank from a place like Harbor Freight Tools and fill it up with the air pumps at the gas station. In the long run it's cheaper, but for a one-time job like this it's easier to just use a couple air cans. You can get them at Wal-Mart.)

If that doesn't solve the problem and you don't care about the warranty, replace the fan. Get one with its own thermal controller; most of the time it will run quieter than the stock fan but will still push just as much air if necessary. (You may have to know how to solder to do this, depending on how your PSU was made.) I know from experience; the power supply fan in a PC I built shattered about a week after the warranty ran out. The way I figured it, fans are cheaper than power supplies and there was nothing else wrong with the unit, so why not?

If neither of those fixes the problem, put a single layer of electrical tape on the chassis anywhere the sides touch it. Sounds crazy, I know, but it was enough to keep the panels on my case from rattling around. (That buzzing sound a loose case panel makes drives you crazy after a while. :lol:)

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