Windforce GTX-780 with 2 x Molex and 2 x 6-Pin?

microDOS

Prominent
Feb 19, 2017
13
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520
So I have purchased a used Windforce GTX-780 which requires 2 8-Pin connectors, but my Thermaltake Toughpower 750W Power Supply is old and did not come with any 8-Pin connectors. It has 2 6-Pin PCI-E connectors instead.

I was wondering if I could use a 2 x 6-Pin to 8-Pin adapter and a 2 x Molex to 8-Pin connector for each of the 8-Pin slots on my GPU, and whether it would provide enough power, as I am unsure how to calculate this. I have already purchased a 2 x 6-Pin connector and I am waiting for it to be delivered, while I managed to find a Molex connector from another PC.
 
Solution
"It has 2 6-Pin PCI-E connectors instead."

Best option (not ideal) is for you to use two 6-pin to 8-pin adapters. One to supply each of the 8-pin connectors. That way you will have three 12v wires supplying both.

New PSU is your best bet. Though you probably already know that.

Susquehannock

Honorable
"It has 2 6-Pin PCI-E connectors instead."

Best option (not ideal) is for you to use two 6-pin to 8-pin adapters. One to supply each of the 8-pin connectors. That way you will have three 12v wires supplying both.

New PSU is your best bet. Though you probably already know that.
 
Solution