Hello, im new here and require the assistance of pc experts on my problem as I have searched and searched for a solution but to no avail. Basically my pc will shut down quite randomly, most of the time when im playing games. It has only started recently and is not due to overheating because I have checked the temperatures and they are fine. Sometimes when it shuts down it can accompany a BSOD such as KERNEL_STACK_INPAGE_ERROR 0X0000007A or MACHINE_CHECK_EXCEPTION or KERNAL_DATA_ERROR. Also a few days ago it wouldn't recgonise the HDD and wouldn't allow me to log onto windows until I gave it some time. If not in a game, pc wont shut down for maybe 2 hours. In a game, Im lucky if I get 30 mins to play before shutdown.
I have Windows XP Home SP1
AMD athlon 64 3200+ 2.0ghz
Geforce fx5500 256mb
1gb ddr400 ram
Asrock 939A8X-M mobo
Thanks in advance.