I have what may be two separate issues, but I'm pretty confident they're related.
My CPU cooler makes an irritating buzzing noise when performing taxing tasks such as games (otherwise it's fine). This is accompanied by intermittent freezing during games. The freezing (about 10-20 seconds) seems to happen at the same time as the noise kicks up.
So it seems obvious, right? Replace the CPU cooler. The only thing keeping me from ordering one right now is this: I'm not having any heat issues whatsoever. Does this make any sense to anyone? Or am I just delusional, and my freezing issue can't possibly be the CPU cooler?
Intermittent freezing could be caused by a bad hdd too.
You should check that out with an app from Seagate or WDC = they're free from their websites
Personally i'd think about replacing that psu with a modern unit and see if that solves your issues.
A sub-par psu leads to all kinds of issues eventually.
Your psu is an old inefficient design with a weak 12v rail.