I have the ANTEC Sonata II case, that comes with a 450W Smartpower power supply. Although it's supposed to be very quiet, it's much louder than my old computer, to the point where I'm pretty sure something is wrong. The exhaust fan on the back(there are two ps fans) almost never runs, so I think something is wrong with the front fan. It's a hassle to send back, since I bought it off the internet and would have to ship it, is there anything I can do to figure out exactly what's wrong/fix it on my own?? Is there any way to control power supply fan speeds?? Thanks for any help you can give me.