PSU big enough + Overclock?

[Efour]

got a corsair 650TX currently running


1x 2500k turbo clocked to 4.4ghz
1 x 6870
2 x samsung 1tb HDD
1 x 60gb SSD
1 x DVDRom
3 x 120mm fans
1 x 200mm fan

i want to add another 6870 xfire would this be too much?

 

[Surveyor]

Your PSU should be powerful enough. See here.

I believe your power supply only has 2 PCI-E power connectors and for Crossfired HD 6870's you need 4.

You'll need to use molex to PCI-E power adapters for the other 2 connectors. These are usually supplied with the graphics card.