Making a GPU with an 8 pin work with a 6 pin power

Recently I had to swap my good old power supply for a spare one. However, I needed an 8 pin GPU power connector and the spare PSU had only a 6 pin. Turns out 6->8 pin conversion is not that hard to do.

Looking at a pinout of both connectors, it occurred to me that a modification should be quite simple.

Power connector pinout

Grounding the “Sense B” pin tells the GPU that an 8 pin had been plugged in. So my thinking was that I could plug in the 6 pin, and then just bridge the remaining two pins.

However, I didn’t want to do any modification to the GPU itself, and I didn’t have any 8 pin connectors. What I did have was this chopped off 6 pin

Spare 6 pin connector

and with a bit of sawing, sanding and soldering, my jumper was born.

2 pin jumper

I dabbed a bit of glue on the side and glued it to the 6 pin connector on the PSU, then plugged it into the GPU and hoped for the best.

DIY 8 pin conversion

DIY 8 pin conversion

The GPU recognized the 8 pin and works fine.

8 Comments

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  1. how can i get it?

  2. Faisal Hawatmeh

    April 29, 2020 — 12:08 am

    Thank you very much for posting this! I am trying to use an older GPU that I have ( a 670 4G) and found that it requires a 6 pin AND an 8 pin (and my PSU only has 2 6 pin connectors). I will try your method in the morning. Meaniwhile, do you know if the ground and sense connectors are always the lest two towards edge of the GPU?

  3. Will this work on an AMD card where the two pins are in between the two 6 pin connectors?

  4. What are the dangers of doing this long term?

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