athlon x2 245 crashes while playing

sourodip

Distinguished
hello guys

my pc specs:
asus M2N68AM-PLUS
4gb ddr2 800 mhz ram
athlon x2 245 processor
frontech 450W psu(in build with cabinet)


I am having a problem with my pc,i.e.,whenever i am playing game for about half an hour my pc crashes.I thought it was my mobo and i tested my processor with another system and there also it crashed(here it is important to tell that the system which i have tested also has an inbuilt psu) and on that system i noticed that my processor was getting terribly hot before crashing(maybe it crashes so as to prevent damage to the computer) but since 3 yrs this did not happened;
so it is my processor or my psu?

any suggestions would be very much helpful
Thank you and please reply as quick as u can....
 
Solution
Either would be fine - just clean the HSF and CPU well, and then don't put too much on. Size of a cooked grain of rice - right in the middle, and allow the HSF to spread it out when you put it on.