Help with a fan.

[Infinity]

Well the back of my fan just completely stopped working before it flickered every now and than, but now it just stopped. It has never been changed before so im guessing it's probably a shortage and time for a new fan. Although how do I go about choosing is there certain types I must be looking for? Right now I have an antec fan on there, but its not any help because it doesn't work. Im just fearing it could damage my cpu if it gets too hot. The internal fan does work so I am using a small house hold fan with the case off for now. Anyways i'm not sure of the size.. its about 4 inches across so it's a fairly big fig. Is there anyway to tell what size it needs to be without pulling out a ruler? I think its 120mm but im not sure. So if any of you could help me by recommending a GOOD bang for the buck fan? (The cheaper the better.) Thanks


Oh and forgot to ask... would a single big fan be better or two smaller dual fans be better.

[Infinity]

Oh and on top of that my sound isn't working anymore. All of a sudden out of no where like my headset had no sound. So it could be anything wrong with it. I've tried all 4 of my usb ports and nothign works at all. It's like it doesn't recognize it anymore.. The microphone works because i tested it in sound recorder but I cant hear anything so something is wrong. Anyone got a solution to t his also?

[JAGeBoyle]

Check your sound card drivers in your system and see if there is a ! on any of them. As far as the fan go's google the fan you currently have in there and its size and just replace with one of the same size.