I've come to the concusion its a defective card. I put my old card back in
and everything is running fine I put in a new power supply didnt fix it so I
think its a defective card. So time to RMA it back to newegg sigh how long
does that take anyway?
Just to clarify, your old card used as much power as the
6600, so it's a basis for comparison against the the power
supply inadequacy potential?
Is the new power supply known to be quality, accurately
rated to provide enough power. For example, a Raidmax 450W
wouldn't do the job but an Antec 430W should.
It does seem possible the card is the problem though,
perhaps better to return it while the vendor warranty is
still in effect. Newegg has pretty quick turnaround,
usually they've cleared up returns within 3 days of their
receipt... though usually I don't wait on them if it's a
cash credit I just go ahead and reorder another part... if
you're expecting an exchange then you might need to wait
longer.... call and ask them what your options are, it can't
hurt.