[SOLVED] 8 pin cpu or gpu outlet used for 8 pin pci-e cable to power gpu?

[Ether herder]

Hi

I have a phanteks 1200 watt platinium PSU and the 8 pin outlets are marked for cpu and pci-e. They look exactly the same regarding pins and I wonder if i could attach another GPU to my mobo using the 8 pin connector marked as CPU? There are three of those marked cpu and four for pci

 

[ohio_buckeye]

I wouldn’t. I would recommend to use them for what they are labeled. They might be wired slightly differently, you don’t want to give power to the wrong part of your graphics card for example and potentially fry a card, especially with gpu prices today.

 

[dotas1]

It's almost certain they are wired differently. You should not use the cpu cables to power GPU. After all a 1200w PSU should have more than enough pcie cables to power a second GPU.

Edit: you mentioned that it has 4 cables for PCIe. Most if not all of them should be with two 6+2pins each on the other end.

 

[Jmi20]

They are different. Was trying to find this for another post but check this out:

kudos to this thread.

 

[Ether herder]

It's almost certain they are wired differently. You should not use the cpu cables to power GPU. After all a 1200w PSU should have more than enough pcie cables to power a second GPU.

Edit: you mentioned that it has 4 cables for PCIe. Most if not all of them should be with two 6+2pins each on the other end.

Oh i think you misunderstood me. Its not the cables that are marked this way its the outlets. I know these cables are different, they go out four by fours as well.

 

[Ether herder]

They are different. Was trying to find this for another post but check this out:

kudos to this thread.

Nice, thanks, but are these the wiring from the psu or is it the cables? I will try to post an immage of the psu outlet

 

[Ether herder]

They are different. Was trying to find this for another post but check this out:

kudos to this thread.

 

[Ether herder]

I mean is it the wiring in the PSU for the outlets? See the image in the link i could not upload an image
Phanteks Revolt X 1000W moduláris tápegység (PH-P1000PS) (aqua.hu)

 

[Jmi20]

I would like to think that the wiring itself is different, but dont know for sure.

the best way to check is to use a multimeter to see which is positive and negative. Those “sense” wires are just negative too.

if the socket itself is different then you can just rearrange the pins of the wire…