i have the specs below ... and today i made some new changes to my cooling system which dropped the temp from 60 on full load to 35 on full load also (45 idle to 25), although i made this i found that 3D mark and some games r Jerky ... meaning : they work fine but every 4 seconds for example the game pauses for an instant and then resumes !, i have 2 266 RAMs and 1 333 and i'm working 266 for all as my MB doesn't support 333, note : the frame rate is not the problem as i have measured it it's very good (30 Fps normally in heavy games and with medium configs).