Possible PSU problem with 290 xfire?

[Orangey]

I am running a 2600K @ 4.7 1.48v and 2 290 pros @ 1200/1500 +150mv offset on a Seasonic X-Series 850W Gold. I can run Firestrike Extreme no prob all day long but Sleeping Dogs bench causes my system to exhibit the following behaviour:

-sounds like light rain hitting window emanating from around GPU/PSU area
-PSU spins up, very warm air exhausting
-PC reboots

Do the 290s really draw that much when OC'd? What should I do?

 

[Orangey]

Drop all of your overclocks and see if it stops doing it.

Forgot to mention I did that, works fine on lower clocks.

 

[Orangey]

Ugh, I just saw the 1000W platinum version of my Seasonic go for the same amount I paid for my 850W on the MM too.

 

[Orangey]

If you dont wanna break the bank too much this Be quiet psu is a good one if buying new

Don't mean to be rude but that PSU is crap compared to a Seasonic 1050W which has better caps and components, is gold and doesn't cost much more.