I just upgraded my Inspiron 530 from a e2180 to a e8400 (SLB9J). I know my bios is the latest version and I know my mobo is compatiable. Dell sales the exact same cpu for my system as an option. I reused the same heatsink/fan that was on my e2180 which is the same one Dell uses for both cpu's. I cleaned off the old thermal lube and applied Artic Freeze 5 exactly as directed. I have "speed fan" on my pc since I can't find a place to check on temp's in Dell's bios (Dell Bios 1.0.16 12/12/2008). I checked my old cpu and recorded the temps; Temp1 36C,Temp2 43C,Core0 27C,Core1 29C. After changing my cpu; Temp1 **85C**,Temp2 37C,Core0 37C,Core1 36C. The cpu's are both 65watt. I figure I didn't screw my heatsink/fan down tight enough so I checked it. Same readings. I took it out thinking mabey too much thermal grease, cleaned it off and reenstalled with a little less artic5. Same readings! I've upgraded everything possible on this 10 month old pc in the last week so I don't want to burn anything up. HELP!!!