R9 280/hd 7950 Crossfire

[gameboy9867]

Hi everyone, i own a r9 280 and atm i have a 600w cooler master psu and i am planning on buying a second one so can anybody tell me if 600w is enough or i should buy a 700w? any help appreciated

 

[4745454b]

Which CM PSU?

Odds are it doesn't have enough plugs to run what you want. 650W bronze units don't have enough PCIe plugs to power it all. 650W gold units do, but even then it might be a stretch to do it. In general you want a 750W unit to handle two cards like this, more if you want to OC. I'm guessing you need a new PSU.

 

[gameboy9867]

Which CM PSU?

Odds are it doesn't have enough plugs to run what you want. 650W bronze units don't have enough PCIe plugs to power it all. 650W gold units do, but even then it might be a stretch to do it. In general you want a 750W unit to handle two cards like this, more if you want to OC. I'm guessing you need a new PSU.

ok thanks for the quick respinse i am going to buy a 750w psu now

 

[4745454b]

Just make sure it's a QUALITY unit. If you are buying a 750W PSU and it's going to cost you $20 + shipping, keep looking.