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How to connect PSU to GPU

Tags:
  • Power Supplies
  • Cable
  • Be Quiet!
  • Connection
  • Components
  • GPUs
  • PCI Express
  • Radeon
Last response: in Components
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February 7, 2014 4:20:02 AM

I bought Radeon R9-270X and I have be quiet PSU (http://www.bequiet.com/en/powersupply/249).
The 270X has 2x PCIe 6 pin to be powered, and my PSU has 2x PCI-E 6+2 pin for GPU.
The problem is that I don't know how to connect these two.
http://imgur.com/j4DgqYj
This is the PSU that has 2x PCIe 8 pin.
When I searched for the cable, I only found the one with male end + female end, not the male end + male end. So I am really confused right now.
How do I connect the GPU and the PSU???

More about : connect psu gpu

February 7, 2014 4:29:58 AM

There's nothing wrong with your PSU or nothing that you should do to modify it. It has, well, exactly, 2x 6 pin PCI-E and +2 pin for each connector. So it really has 6 + 2 pin, but those 2 are separated from the other 6, which means that if you don't need them, you just leave them unplugged. You are good to go :) 
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a c 99 ) Power supply
February 7, 2014 4:30:13 AM

The PCI-E power cable should have one end that fits the power supply connector, and on the other end should have a split plug with 6 + 2 pins. In this case you just use the 6-pin part of the connector and leave the extra 2 hanging.
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February 7, 2014 4:35:19 AM

responses above are all correct. just leave the other 2 pin unplugged. just plug the 6 pin to the gpu then youre good to go..
please give us update on what you have done.
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February 7, 2014 4:38:11 AM

No I know it's Ok to use 6 pin plug into 8 pin socket. My problem is that both my PSU and GPU have a female socket of PCIe, and I cannot find a cable that has PCIe male plug at the both ends.
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a c 99 ) Power supply
February 7, 2014 4:55:48 AM

LLSW said:
No I know it's Ok to use 6 pin plug into 8 pin socket. My problem is that both my PSU and GPU have a female socket of PCIe, and I cannot find a cable that has PCIe male plug at the both ends.


I don't think the power supply connector will be a PCI-E power connector exactly.
There should be two provided cables with an 8-pin plug on one end for the power supply and the 6+2 pin plug on the other end.
If not, perhaps you are missing cables.
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February 7, 2014 4:59:58 AM

http://imgur.com/j4DgqYj
This is the picture of PSU with female PCIe sockets. Isn't this PCI-E power connector?
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Best solution

a c 99 ) Power supply
February 7, 2014 5:10:59 AM

LLSW said:
http://imgur.com/j4DgqYj
This is the picture of PSU with female PCIe sockets. Isn't this PCI-E power connector?


This is where you connect the modular PCI-E power cables.
These sockets are likely not PCI-E connectors.
They do have 8 pins, but you'll find some of the plastic sockets around the pins are different, and even the pin layout can be different to PCI-E.
Power supply manufacturers do this so that you have to use their modular cables.
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February 7, 2014 5:28:51 AM

I don't have the modular PCI-E cables. So do I have to buy "their" cables? Is that the only way?
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a c 99 ) Power supply
February 7, 2014 6:05:01 AM

That's my guess. It's certainly the safest option.
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February 7, 2014 8:24:36 AM

Thanks, Ill contact them.
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