i just build a PC with some parts i had lying around it turn it on all is working than it turns off i check all the cable all is well then checked the CPU and it is really hot i think it is overheating when i turn it on the mother broad i a galaxy 650i ultra and the cpu is a p4 2.8 800mhz 512mb 400mhz ram all of the parts are supported i do not no what is worng
have you used good thermal paste on the cpu heatsink ? Is the cpu fan working correctly ? Its also worth checking that the cpu voltage is not set too high in bios settings.
its got good thermal paste on the heat sink the fan is working fine but i does not stay running long enough for me to get into the bios
The CPU won't overheat so quickly you cannot enter the BIOS if it has proper thermal interface and a heatsink/fan that is functioning properly. P4's throttle so well I've seen ones run without a heatsink still function. You can monitor the core temp with any of several utilities or the hardware monitor in the BIOS. Core temp, real temp, speedfan, etc. Is the BIOS delivering the correct vcore for the CPU?