Question 1

I have an early 2009 mac pro that I want to upgrade my graphics card to a GTX 6600.  Will this power cable work to provide power to this graphics card?

Accepted Answer

This is just a PCIe extension cable. If you dont have a PCIe plug on your psu wiring you will need a 4 pin molex to PCIe adapter cable.

Question 2

I need another two cables to reach from my modular power supply to my second graphics card. will this accomplish that?

Accepted Answer

Yes it will, as long as your card uses 6 pin connectors. (PCI Express slots provide 75W of power, 6 pin connectors each add an additional 75W of power while 8 pin connectors add 150W.)

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