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Can I deliver more power to the GPU with a 8 pin to 6 pin cable adapter?

Tags:
  • GPUs
  • Cable
  • Power
  • Graphics
Last response: in Graphics & Displays
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December 17, 2013 1:00:29 PM

I have a Sapphire HD7950 3GB BOOST, which has 6+6 pin power connectors. However, I have seen other HD7950s with 6+8 or 8+8 pin connectors, and my PSU (FSP Raider 550) has two 6+2 pin PCIE power cables. So I searched around and found this:

http://www.cwc-group.com/8pin6pin.html

If I use 2 of these to convert my 6+2 pin connectors to 6 pins and connect it to the 6+6 connectors on the GPU, will the GPU get more power than with the 2x regular 6 pins? It would be good for stability and optimizing overclock.

More about : deliver power gpu pin pin cable adapter

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December 17, 2013 1:07:48 PM

It doesn't work like that. If it did, it would probably melt the ports from excess power from what is allowed.
But if you read the adapter specs, it states 225/300w to 150w. Which is good, you do not want 200w+ going into 6pin ports. You'd probably kill the card as well, as the manufacturer would have added an 8 pin, but made the card around the 6 pins. So it probably wouldn't support the extra power-and also overheat, if not fry immediately. 300w is plenty for a 250w tdp GPU. (1 6pin=150w)

Edit:
As you see here:
http://www.antec.com/PSU/index.php
A PCIe provides 75w, and efficient 6pin should provide 200w, so theoretically 1 6pin is enough.
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