i have a macpro 1,1, yes unbelievable but true. Last time i turned it on was about 2 years ago. When i turned it on it was good and nice and fast but then I realized the graphics. I mean 2 years ago they seemed fine to me but now it just can't do anything, such as it doesn't have support forr a lot of the things today. Anyway I decided to get a GTX 590 since it is possible to upgrade up to the 500 series without installing 10.10 on it. Then when i went to check to see for the PCI E power it only has 2x 6 pins. My question is this. Is it possible to get a 6 pin to 8 pin power connector for the 590? please reply. Thanks.