Help crap performance issue

[ziku999]

Hey hey, well i'm new here.. i have a problem. a mayor one.

currently running a

M2n-mx se plus mobo with Amd x2 6000(stock)
1 gig of ram
600w Thermaltake toughpower PSU
ATI hd 3870 512 vid


But it runs like hmm crap.. works find for bout 15sec in any game then i lose all fps. Eg. Wow 75fp then 1fps with no graphics runnin?

Tried millions of different things wondering if someone has a idea on whats wrong?

 

[randomizer]

This shouldn't be in this section.