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Will i be able to add another hd6950 1gb?

Last response: in Components
September 25, 2011 10:21:51 AM

this is what i currently have running:

asrock z68 extreme4 gen3
intel i5 2500k
corsair vengeance 4gb
Sapphire hd 6950 1gb
Seagate 1TB
seasonic m12II 620 watts
DVD writer

is it remotely possible to crossfire with another hd 6950 1gb? or am i going to fry my system...

More about : add hd6950 1gb

September 25, 2011 10:29:40 AM

Sorry i doubt you can run it on a 620 it said on new eggs calculator you need a 800w PSU.

Sorry for the bad news :( 
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September 25, 2011 10:41:08 AM

thanks for the input :)  i guess i wont be able to crossfire then hehe...
September 25, 2011 11:07:23 AM

of course add the 2nd graphics card but make sure your psu can handle both
a b ) Power supply
September 25, 2011 11:15:52 AM

you can go xfire 6950 with upgrade from 620W to upgrade to hx/ax corsair 750W or above
September 25, 2011 11:25:59 AM

take it my suggestion is wrong :/ 
a c 87 ) Power supply
September 25, 2011 6:02:22 PM

Both the systems used in the reviews below were Nehalems, so more power hungry than the i5 you have.
They show maximum power consumption between 479-509W. The Legit numbers were taken from the wall, this is likely true for the Anandtech review as well, but I haven't seen it explicitly stated anywhere.
If they are taken from the wall then 10-20% can be taken off to get their actual system power draw and I think that is good number to use as a worst case for you.
A 460W load would only stress a 620W PSU to 75%. So it is within the capabilities of a 620W PSU to power a build with two 6950s. However no 620W unit I know has four PCIe connectors, so you would have to use adapters.