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Questions installing R9 270x to PCU

Tags:
  • GPUs
  • Connection
  • Corsair
  • Graphics
Last response: in Graphics & Displays
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September 25, 2014 5:03:42 PM

I recently purchased an MSI R9 270x and am a little puzzled at how I should install it to my Corsair CX 430M. The GPU itself has two 6 pin slots on it, and came with two 6 pin to 4 pin(Has 3 metal rods in it but room for 4) adapters, of which I assume I connect to my PSU through another adapter. My Corsair came with one cord that can connect to three of those four adapters. My question is should I get a cord that can connect to four adapters or am I good with just those three?

My apologies if I am a bit vague. This is my first PC build and of course am really excited. Thank you for helping!

More about : questions installing 270x pcu

September 25, 2014 5:09:42 PM

Let me quote ko888 from this post: http://www.tomshardware.com/answers/id-1908563/amd-270x...

Quote:
"1 x 8 pin to 2 x 6 pin Y splitter results in the same maximum power draw capacity.

8-pin PCI-E connector - 150 Watts maximum

6-pin PCI-E - 75 Watts maximum so two of these is 150 Watts maximum.

For a system using a single AMD Reference Design Radeon R9 270X graphics card AMD specifies a minimum of a 500 Watt or greater system power supply. The power supply should also have a maximum combined +12 Volt continuous current rating of 30 Amps or greater and have at least two 6-pin PCI Express supplementary power connectors."

Not to ruin your excitement, but your PSU may not be adequate for the GPU. What is your complete build?

On the top of that, your PSU does have 1 PCIe power connector so you would need to use an Molex to 6pin PCIe adapter for the other one.
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September 25, 2014 5:29:36 PM

Dazinek said:
Let me quote ko888 from this post: http://www.tomshardware.com/answers/id-1908563/amd-270x...

Quote:
"1 x 8 pin to 2 x 6 pin Y splitter results in the same maximum power draw capacity.

8-pin PCI-E connector - 150 Watts maximum

6-pin PCI-E - 75 Watts maximum so two of these is 150 Watts maximum.

For a system using a single AMD Reference Design Radeon R9 270X graphics card AMD specifies a minimum of a 500 Watt or greater system power supply. The power supply should also have a maximum combined +12 Volt continuous current rating of 30 Amps or greater and have at least two 6-pin PCI Express supplementary power connectors."

Not to ruin your excitement, but your PSU may not be adequate for the GPU. What is your complete build?

On the top of that, your PSU does have 1 PCIe power connector so you would need to use an Molex to 6pin PCIe adapter for the other one.


My full build is:
A78M-E35 Motherboard
CX 430 M Modular ATX power
AMD 760k CPU
4 Gig AMD memory RAM

I've heard of perfect compatibility between CX430M and an R9 270x but I just don't know if I need an additional female molex for my PSU or if just three of them connected should do.
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September 25, 2014 5:40:41 PM

Plug the one PCIe into the your GPU, you then described you had the three prongs but had rooms for 4. That is a Molex cable, plug that into your PSU and plug that into your GPU.

Best of luck
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!