![]() So i removed the optical drive and made a wiring harness which would tap off the required rails from the optical drive power cable. I don't really use optical drives and when I need to I have external usb versions. Many people believe an external supply is the only solution, however if you are only adding one card then there is a simple solution if you can bare a small compromise. Anyone who understands how the power system operates should have no problem understanding and performing this. WARNING if you don't understand how this is done then don't attempt to do it. ![]() ![]() I spent some time researching and testing solutions before I settled on the following to get the GTX 780 running in both OSX 10.8.4 and Windows 7 64 on a 2010 Mac Pro.Īvoid 6-8 pin adapters these are a bad fix, you might get enough power to start the machine but as soon as you start any serious use of the GPU the power supply will shut off because of the demand for more power than it can safely provide. ![]() It seems the warranty is no longer valid after you do any kind of power modification to Apple hardware, so I am not recommending this merely sharing some knowledge.
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