Dual gpu on macpro

[Supranutz]

Hello guys !
I'm currently running Octane for C4D using a 2010 series macpro with a single GTX 680, I was thinking of adding something like a GTX 980 ti on the second gpu slot but saddly the computer doesn't give enough juice to power a second card..
Would it be possible to power it using an external PSU ?

Thanks,
F.P.

[bepeg4d]

Hi,
yes, one solution is to use an external PSU with the paper clip trick, here is a video from Corsair:

Another more elegant solution is to find a PSU that fits inside the optional DVD bay, but is not so easy to find them
ciao beppe

[Supranutz]

Thanks for the quick answer !
Pardon my ignorance, but what exactly is the purpose of this paper clip trick besides checking that the psu is properly powering the devices ?
Would I be able to just simply connect the 6 and 8 pin connectors to a corsair psu ? I don't mind having an to switch the power on for the external psu before starting up the mac pro..

Thanks,
F.P.

[p3taoctane]

The paper clip enables the PSU to startup without it being connected to a mother board.

Otherwise it will not turn on without it thinking it is connected. the clip tricks it into thinking it is. : > )

Peter