Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

Jasper6120

macrumors newbie
Original poster
Feb 20, 2015
10
0
Hey guys

I’ve got an early 2008 mac pro and I decided I need to upgrade the graphics card. I bought a Nvidia Geforce 660ti and installed it into the mac, but it doesn’t seem to be working. It registers in the ‘about this mac’ section but when I try and play any games the game either crashes or the graphics are really slow and laggy.

I had a radeon 5 series card which used two mini PCIe to normal PCI 6 pin leads, the GTX 660ti uses one. So I just plugged one lead in and the graphics card turns on (fans work). Like I said, the graphics card comes up in the 'about this mac' section as being there, just doesn't seem to be doing anything. I have updated all the drivers, but it just doesn't want to work. Has anyone got any experience with getting one of these cards to talk? I know its been done.

Cheers

Jordan
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.