i just upgraded my graphics card to the 6870 right now i have the cool master extreme power plus 600w. i heard that is was a bad psu so do i need a knew one or will it be fine
As mentioned previously, that is a bad psu.
You can probably use it for a while, but read
the review linked and make your own judgement.
I would be saving $ for a replacement.
In fact, that's what I did a few month's ago,
replaced a coolermaster psu.http://www.hardwaresecrets.com/article/Cooler-Master-eXtreme-Power-Plus-600-W-Power-Supply-Review/1034/1