Sounds like you were right! with the temperature too high. It's a little case for Mini-ITX.. i just removed the top and now, after 1 hour, it works like a charm.. i will wait just to be sure
Stupid IDE Cable..
EDIT: NOT!.. damnit.. i got the same problem after 2 hours.. I will change both of my IDE cables and run the hardware outside the case. Stay tuned!
EDIT2: Done, after 7 hours, i got no problem. I think one of my cables was "flaky" and i know why
Thank you Mr. smbell.