When I turn my computer on sometimes it will make this audible whiring noise, that goes away after a while also it tends to fade in and out as it goes away, it is not my power supply fan but could be my cooling fan for the proccesser. My computer seems to be running fine otherwise, not sure if its over heating or not. Is there any way to check on the health of the processer fan?

Moderator Edit: Moved topic to more appropriate forum. ~ Animal

Open the case and try to identify the location of the noise. While the case is open, it's a good time to give your computer a clean, which may solce the problem.

Cleaning the Interior of your PC

ok it is the processor fan and blowing it out didnt help, but the good thing is its still running, but I suppose I need to replace it now, whats the rough cost for a simple one? Also the temp according to Speed fan averaves about 44C with one degree fluctuaions up and down. sounds like it going to die pretty soon though.

It depends on the processor but 44C doesn't sound too bad - I would start to worry if it approaches 60C, but some can tolerate up to 90C. I think you can get a fan for about 15USD.

Do you have any case fans? If not, getting 1 or 2 will help a lot in keeping the CPU cool....

ok I bought a new processor cooling fan and installed a case fan, thankfully the noise it gone now. According to "SpeedFan" the ambient temp is about 10 degrees cooler now but the remote 1 seems to fluctuate between 45C and 60C and a little flame pops up becide it. LMAO and remote 2 is -128C and doesent move.

ok as I said before about the whiring noise, well it has returned. I have brand new fans so I know its not that, so I am out of ideas as to what could be makeing the noise.

I suggest cracking open the side of the case and seeing if you can spot the source of the whirring (don't touch anything since it'll still be "live" with electricity). The most likely cause is a fan, but the hard drive runs a close second to that.