Dear All; My PC is switching off automatically after a while without any prior notice. I have checked the BIOS and here is what i have got: CPU Temperature: 81C / 176F; M/B Temperature: 34C / 93F; CPU Fan Speed: N/A Chassis Fan Speed: 1868 RPM It looks to me like the temprature of the CPU is high, can someone please let me know if this is normal? if not, what could be the reason? I have an intel P4 3.00 GHz, 2mb cashe and I am running windows xp professional. Many thanks.