What i really want to know is how can i improve the air flaw inside the case?? And what fan is bset for P4 2.4c??? Cause my friend's Athlon XP 2500+ oc to 3200+ with stock fan has cpu temp of only 36C-Idle and 44C-Load. my Ram Timing is now(2-3-2-5) and if i get to 2-2-2-5 i can't load into WinXP. the default cpu voltage is 1.5, and i incrase it to 1.6. Is it necessary to do that??