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
The GPU recognized the 8 pin and works fine.
APRILIA KINANTHY
October 13, 2019 — 4:06 pm
how can i get it?
Filip Hruška
October 19, 2019 — 2:52 pm
Hi, what do you mean?
maman
October 15, 2020 — 11:40 pm
I have read your writings and I have read articles on this topic in several articles from other sources. I got a lot of information from your writing, is there any other suggestions you can convey regarding the theme of your writing? so that I can get more and more complete information. I certainly thank you for writing this article well, hopefully it will become a reference in journals or other scientific writings and can help many people. thanks.
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?
Filip Hruška
April 29, 2020 — 9:35 am
If you look at the connector on the GPU from the front, with the tab/latch being down (see the last picture in the article for reference), it should be the two rightmost pins.
Chris
May 11, 2020 — 5:14 pm
Will this work on an AMD card where the two pins are in between the two 6 pin connectors?
Filip Hruška
May 11, 2020 — 6:56 pm
I suppose there’s no reason why it shouldn’t work on an AMD card. The PCIe power connectors are standardized.
GroanUpGamer
May 15, 2020 — 5:11 pm
What are the dangers of doing this long term?
Filip Hruška
May 16, 2020 — 9:44 pm
As long as you do this properly (connector will be seated correctly) and your power supply can handle the load, there should be none.
David Crowley
July 14, 2020 — 2:54 am
Will this work for just a one 8 pin like me hooking a 6pin into it and the jumper thing
David Crowley
July 14, 2020 — 4:54 am
Its a msi rx 470 4gb
Filip Hruška
July 14, 2020 — 10:39 am
Assuming you wire it correctly, I don’t see why not, this has to work with any GPU since it’s a standard that all manufacturers have to follow.
David Crowley
July 14, 2020 — 5:18 pm
Thanks ill tell u if it works saturday
Bk
May 12, 2021 — 12:38 pm
So good it work
Kampus Terbaik Lampung
January 5, 2022 — 7:47 am
Will this work for just a one 8 pin like me hooking a 6pin into it and the jumper thing
1
October 5, 2022 — 5:44 am
Would it makes the graphic card using 1 less ground input(only 2 ground wires is used for power) while handling 3x12V input?
Should the pin 8 be connected to pin 6 too?
Filip Hruška
October 8, 2022 — 1:48 pm
Preferably it should be connected, however on a less power hungry GPU (like the GTX980 I have done the mod on) it doesn’t really matter. I would perhaps not do the mod in this fashion on something like a RTX3080
JAMES
April 9, 2023 — 2:31 am
YOU JUST SHORTED THE 12V TO GROUND!
Filip Hruška
April 12, 2023 — 12:51 pm
That’s not actually correct, the sense pin should be grounded and not carry 12V. The purpose of it is not to carry any current, but rather allow the GPU to detect that the plug is indeed connected
Gabriel
September 14, 2023 — 7:06 am
Hi there, would this work with a RTX 6600
asdf
September 25, 2023 — 12:27 am
It seems there is even an adapter for this that presumably does exactly what you did: https://www.rm-computertechnik.de/Shop/7826_PCI_Express_6_PIN_Kupplung_auf_8_PIN_Stecker_Adapter.html
But I’d rather make my own thanks to your suggestion. Good thinking! Thanks!
Informatika
February 9, 2024 — 1:03 pm
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Jacob L
August 19, 2024 — 6:31 pm
Thank you!!! You helped me revive an old computer with a high-end graphic card!