I have similar situation here, XP 1800+, KX7-333R. The are temperatures 40C system, 50-52C cpu idle, and 43-45C system, 56-57C under load. I have a $40 case that has got more than 60 faverable reviews on newegg, and AX-7 the famous heatsink. I put a 34CFM,29dba panaflo on AX-7, one 20CFM,12 dba...