how to install geforce gtx 780 on a mac pro 2010 ?

[jmacfichet]

Hello, I've bought a geforce gtx 780 and I try to install in a mac pro 2010. I removed the old radeon 5770 and put the geforce gtx 780. Nothing appears on the screen. When I open the mac pro, the geforce seems working. However, do I need more power ?
Is there a way or a method to do it properly ?

Many thanks for the help in advance

 

[ashurao]

Hello, I've bought a geforce gtx 780 and I try to install in a mac pro 2010. I removed the old radeon 5770 and put the geforce gtx 780. Nothing appears on the screen. When I open the mac pro, the geforce seems working. However, do I need more power ?
Is there a way or a method to do it properly ?

Many thanks for the help in advance

Hello,
Excuse me if I ask a stupid question, but have you connected a second connector 6 pins or did you just used one of the 5770HD?
the 5770HD just uses a 6-pins, and the GTX 780, a 6-pin and 8-pin connectors. How did you do the extra connection?

 

[DanielCoffey]

At the very least you will need a second Mac-compatible 6-pin power connector (they are not the same as PC cables) for that 8-pin slot but you should be aware that unless modified the 780 is specced for a higher power draw than will be supplied by the Mac Pro.

 

[jmacfichet]

Hello,
Excuse me if I ask a stupid question, but have you connected a second connector 6 pins or did you just used one of the 5770HD?
the 5770HD just uses a 6-pins, and the GTX 780, a 6-pin and 8-pin connectors. How did you do the extra connection?

Yes I have connected only the 6-pin of the 5770HD.

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At the very least you will need a second Mac-compatible 6-pin power connector (they are not the same as PC cables) for that 8-pin slot but you should be aware that unless modified the 780 is specced for a higher power draw than will be supplied by the Mac Pro.

Thanks so much for your reply. DO you have any idea where to order this kind of 6-pin 8-pin cable ? Very difficult to find around Geneva.

 

[Gav Mack]

Yes I have connected only the 6-pin of the 5770HD.

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Thanks so much for your reply. DO you have any idea where to order this kind of 6-pin 8-pin cable ? Very difficult to find around Geneva.

UK but they ship fast:

http://www.ebay.co.uk/itm/290779934...l?_sacat=0&_from=R40&_nkw=290779934656&_rdc=1