I have a asus p5glmx motherboard,2.66 Ghz and 256 ram. But my cpu temeperature is arbetween 70C to 80C which is extremely high. I have put a chasis fan and also applied gel but still temperature wouldn't come sown.what do i do???

The first thing I would do is to clean up the dust bunnies on the heatsink and fan. If that does not bring down the temperature, then make sure the fan works and the heatsink is properly installed. Then the next thing I'd would do is to reapply a new thin layer of arctic silver 5 to see if that helps. As far as CPU temperature goes, what software are you using to determine the temperature? Is that temperature 70-80C reading from the BIOS? Is the heatsink hot to touch when the software/bios shows 70-80C? TMP-Man Asus P5P800 PAT P4 506 @ 4009Mhz 1.3v Thermaltake CLP0024 w/ 1700RPM 92MM + AS5 2GB OCZ 2-3-2-5 DDR400 120GB/300GB 7200RPM HD Leadtek 7600GT AGP 590/1600 VF700 ALCU AS5

i have reapplied a new thin layer of arctic silver 5,cleared dust and done everything possible but still the temperature doesnt come down. temperature 70-80C reading is from the BIOS. what can be done to reduce the tmp..is something wrong with my processor??

When applying paste on an Intel dual core CPU, it's very important that it's done correctly. The paste should be applied in a thin straight line over the rectangular core & it should NOT be spread out. Since the core is covered by a heatspreader, it's possible that the paste can be applied 90 degrees off, so make absolutely sure you've done it right. Arctic Silver has detailed instructions with pics: http://www.arcticsilver.com/pdf/app... Other than that, check the Asus website to see if there's a BIOS update available for your board. If there is, see if it fixes temp reading errors. One other thing...do yourself a favor & upgrade your RAM amount to at least 1GB.