W I seem to have everyone here beat with skyrocketing temps. First about my system (the relevant portions)-- Intel Pentium 4 3.2Ghz Intel D865Perl Motherboard 400 watt power supply with built in fan CPU fan and heatsink with paste Extra case fan Fresh air duct from side of case directly to CPU Two SATA hard drives one IDE. Two DVD drives Radeon 9700 Pro video card I dont typically run games and the system is not overclocked. I do run several office type programs at once. The computer is located under my desk but the front of the desk is wide open. There is a UPS and cable modem nearby. All measurement taken today were with the side cover off. The ambient room temperature ranged from 73-80 degrees F. I turned on the AC when the room started to get hot. I removed the side panel and blew out all the dust I could find. I downloaded and used SPEEDFAN. It measured the CPU at 63-76C, the three hard drives all at 44 and 55-56C the internal temp (whatever that is) at 38-39 and the remote temp (again, whatever that is) at 42-43. Also it said (i believe incorrectly) that one of my fans was turning at 29rpm and the other at 2700. I physically checked the fans and all are turning at what appears to be normal speed. Speed fan is indicating my CPU temp is in the Red zone. Later (the two programs will not run simultaneously), I downloaded and used Intels Desktop control center and got different values: CPU zone 64C, Zone A 36c Zone B 39C. One fan registered at 2700 rpm. Intel has the CPU temp in the yellow-red zone. I got still different (much higher) values when I checked temperatures using the BIOS CPU 93C, System 46 and 52C....checked another time and got CPU 89C, System 41 and 49C. The reason I started checking temps was my computer kept crashing but I have since determined that was a problem with CA EZ antivirus and not the hardware. Memtest86 showed no problems with memory and the computer ran 15 hours straight without crashing. While using CA EZ antivirus it was crashing every 2-4 hours and I could get it to crash if I had CA EX antivirus running and at the same time ran EVEREST (100% of the time) although EVEREST will run fine if the antivirus is turned off. My questions for all you gurus out there are: 1) Why do the different programs come up with different readings (aside from the obvious error of running them at different times) 2) What else can I do to cool things down short of an expensive water cooled system? 3) Are these temps normal or abnormal and are they way beyond the safe range (as indicated by looking at other peoples posts). Thanks for any input you can provide.