OK guys, can any one give me pointers to my problem. Whenever my Athlon 1.4GHz (Biostar M7VKD, VIA chipset, Radeon 7200) goes above about 44 deg C my PC hangs.... My idle temperature is down at 26deg C but when running full load for any length of time the temperature creeps up to 40's, that's when the trouble starts. If it stays up there for any length of time it freezes (it can stay at 40 - 41 for ages with no trouble but when hitting 42 - 45 deg C :dead: ) I have lots of case fans, I've used thermal compound, I've got a reasonable CPU fan - which means when I take the CPU off full-load the temperature goes back down very quickly. I have changed my cable modem from USB to ethernet, I have changed my graphics from PCI Voodoo 3000 to the AGP ATI Radeon 7200. Could it be a power supply problem, or SDRAM (PC133 CAS3 running on "normal" timing in the bios) or -god forbid - the CPU??? Any ideas?