Well then, I think I know what's wrong.. your PSU is fine.

http://www.ngemu.com/forums/showthread.php?p=848454#post848454

 

Damn i think that was really it oO many many thanks cooliscool, I disasembled everything, cleaned up everything and now my temp idles at 45/47º C but it still goes to 70/75 when benchmarking. I disabled the clock throtling but i was carefull with the temps. The results in benchmarks really improved, and games as well. CS Source now runs at 60/90 fps instead of 15/30, and my PCmark CPU score went from 2000 and something to 4148. However its still a little slower then most guys scores in futuremark website like this one
http://service.futuremark.com/compare?pcm04=2854902

, and i was expecting games to run bit faster. NFSU2 still runs at very low speeds, @ 1024*768 NO AA and some options disabled like enhanced contrast, was running at 20/30 fps.

Just one question, does a cpu work faster at lower temperatures? Couse if so then i need better cooling.

Btw here's my scores in PCmark 2004:

 

, and i was expecting games to run bit faster. NFSU2 still runs at very low speeds, @ 1024*768 NO AA and some options disabled like enhanced contrast, was running at 20/30 fps.
[/IMG]

Have you updated NFSU2 to patch 1.2? It increases performance for 6x00 cards. I'm running the game with all options enabled 4xAA/16xAF at 1280x1024 perfectly fine. Never dips below 30 fps at all. Stays mostly in the 50 fps.

 

70-75°C is still too hot I think. If that's the lowest you can get it to hit under load with the stock heatsink, I recommend you buy a new heatsink.