If you have an AMD Athlon that has Cool & Quiet technology and your motherboard's bios supports it. It rapidly cools down temps when you aren't using the computer, or even if you are.
I heard bad things about it, so never tried it, and you know what my temps were like.
Well, I turned it on, and nothing. No change or anything.
I realised, I had to set Power Management to Minimal, and download this:
AMD Athlon™ 64/FX Processor Driver for Windows XP and Windows Server 2003 Version (x86 and x64 exe) 1.3.2 here (its about half way down the list) - http://www.amd.com/us-en/Processors/...1_9706,00.html
I then restarted the system with Cool & Quiet set to on in BIOS.
Instead of my temperatures being about 45 degrees idle on the CPU, they are now 33 degrees C idle (Room temp: 28 degrees C)
Instead of a load temp of 55 degrees C, load now is about 49 degrees C.
I believe, my motherboard works better with it (ABIT AV8), instead of having it off.
I was very surprised at the temp drop, but it seems to work very well, and doesn't go above the 30's now, unless I'm doing something really intensive,
and it doesn't slow down my PC (at least noticably, and even if it did, when I'm only doing things like Internet and MSN, its really cool and isn't needed). I thought it would, but it doesn't. It just makes sure my systems much cooler, and I don't know why.
Before, I swear my system was running at almost full all the time.
My external USB hard drive doesn't rise temps anymore either like it used to, like the CPU had to work really hard.
I'm really happy now