As title, I don't think I have seen anywhere that used my way for GTX 580 or HD 5870 2gb working in mac pro. I have used it for 2 years, I felt guilty for not sharing with you folks. Here it is with photo.
It's easy and hassle free (for me at least) as long as you can find a copper wire ( size as shown, not too big not too small like people used to say it ), like making a spring. Plug it in the two holes make it contact both pins inside. That's it. Use your two 6 pins from mac pro. Don't be afraid, if you are not burning your mac pro with battlefield 3 for 24 hours a day. It's safe for you.
I used the card with tessellation benchmark software before, not a problem at all. (don't need to be a copper wire, any wire that can make good contact for the pins will do the same job)
Enjoy it!
It's easy and hassle free (for me at least) as long as you can find a copper wire ( size as shown, not too big not too small like people used to say it ), like making a spring. Plug it in the two holes make it contact both pins inside. That's it. Use your two 6 pins from mac pro. Don't be afraid, if you are not burning your mac pro with battlefield 3 for 24 hours a day. It's safe for you.
I used the card with tessellation benchmark software before, not a problem at all. (don't need to be a copper wire, any wire that can make good contact for the pins will do the same job)
Enjoy it!