Indexing is the Culprit?
Well, looks like MarquisDarquis beat me to it.

The following is my reply to an e-mail I got directly from monkeycb. I figured that I'd post it incase anyone else might need the information. I left out certain parts that I figured didn't need to be made public.

Hey XXXXXXXX,
Wow, I'm flattered by your remarks. Thank you. I'm just a lowly college undergrad trying to get "Dr." in front of my name within the next 7 more years.
Actually, you
want a HIGH cpu idleing percentage under task manager's processes. This is letting you know that you are not using up your cpu elsewhere, and that that percent is how much you are idling.
I have a cpu idle of around 99 percent when I'm not doing anything.
It was pretty dirty in there wasn't it. (heatsink) I'm still curious as to what your temperature is. Have you tried running a
temperature monitor? You can get a really good one here:
http://www.geocities.co.jp/SiliconValley-Oakland/8259/ Click on the link near the top to get the latest version of MobileMeter. It's free, and good. Don't worry about translating the page to english (yes, it's japanese). Let me know what your temperature is.
Now that you've unclogged your heatsink,
is there ever a time where your fans stop spinning? Spin for a period of time, then turn off for a little while, spin again for a while, and so forth? This generally means that you are not overheating. Hopefully this is the case.
Now, a problem that happens a lot with stupid
Windows operating systems is that
Explorer will rob you of your cpu cycles and take all of your flops. You basically have trouble doing anything and your computer runs dirt slow like molasses in the winter. Task manager -> processes will show how much cpu time explorer is using. I think that this is because
explorer is trying to keep track of where all your files are (if you have
indexing on). If you have a lot of files that are fragmented, then this will happen. It sucks.
Defrag often. I leave my indexing on and just defrag regularly. I like indexing on because then I can access things quicker. I'm pretty sure that this is the problem. Look at your hardware lights, does the
hard disk light show activity (blinking?), because if so, then I'm certain this is the problem.
Good luck, and let me know how it goes.
Sincerely,
Denny Metcalf
dennymet@bu.edu
One last thing:
Monkeycb, when you said that you "used new heatsink on the cpu," you meant new thermal compound right? You didn't actually physically get a new heatsink right?
Assuming you changed your
thermal compound, what kind of thermal compound did you use? I live my
Arctic Silver, and now that 5 is out, I have hoarded up a ton of it. (
I clean out my cooling system and re greased my heatsink monthly) Also, how much did you apply? Because I find that using a very thin amount works best.
Let us know about how things go.
Good luck!!