I've been talking to a friend today and guiding him through the process of replacing his motherboard. When he removed his heat sink i told him he would need new paste (because the original is about a year old), so he went up to the local computer shop to buy some. The shop assistant told him he wouldn't need paste since his processor is only 2.4ghz, so he went to the local DSE and was also told the same thing (as long as his cpu is under 3ghz). He picked up some generic white thermal paste while he was there. Is it just me or is there something wrong with this? I've always been under the impression that thermal paste should always be used, unless your cpu is under 100mhz or something. Am i crazy or are these shops mad giving out this advice. His cpu is a p4 2.4ghz non-overclocked.