can i use 4+4 molex pin to power a 6 molex pin extension?

Aug 9, 2018
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Hi, i don't have enough PSU 4+4 CPU pin cable to power up the 8 CPU pin mother board, but i have an extension that came with the PSU, a 8 CPU pin to 6 CPU pin so i thought i could use the 4+4 CPU pin to power the 6 CPU pin extension like in the pic's below:


imgur.com/a/sSXwfnK

can i do that?

my PSU is a seasonic s12ii 520w


ps: for some reason when i add the full link i don't get any images here.

Thank you.
 


You have to use the Picture button and add the image link to add images in the forum.

Molex is a specific 4-pin connector used for peripherals (not 4-pin CPU connector), so you would be incorrect to add the term "molex" to 6-pin or 8-pin or even 4-pin CPU connector.

Just use the single 4-pin CPU connector, it will work without the second connector.

*EDIT: Actually, I'm not sure what you're asking. What is it you are trying to power? Please list full specs.
 


Why would you be using a 6-pin extension? You cannot use a 6-pin connection to power the CPU. You have to use the specific CPU/EPS connector, which is either 4-pin or 4+4-pin.
 
Hi

For picture of common psu connectors se
http://www.playtool.com/pages/psuconnectors/connectors.html

I presume the psu is modular

Pci-e. Connectors for graphics cards have 6 or 8 pins
Some have 6+2. Which can be used as 6 or 8 pin pci-e

Motherboards have a 4 or 8 pin 12v connector which is plugged in near the cpu
Frequently the 8 pin plug is actually 4+4 clipped together
This cpu 8 pin plug is wired differently from the pci-e 8 pin gpu plug

Molex or auxillary plugs (4 pin 5v & 12v) are not used much nowdays and using a converter to a pci-e 6 or 8 pin plug is a bad idea

Using a converter from 4 pin molex for a cpu 12v 4 or 8 pin plug is a very bad idea

Regards
Mike Barnes

 


If your CPU power cable doesn't reach, you should re-arrange some things so that it does.

If you absolutely cannot make it reach, then they do make CPU/EPS extension cables like this https://www.amazon.com/StarTech-com-8-Inch-8-Pin-Extension-EPS8EXT/dp/B000M802RG/ref=sr_1_3?ie=UTF8&qid=1533842389&sr=8-3&keywords=cpu+8+pin+extension

or this https://www.amazon.com/Motherboard-Power-Supply-Female-Extension/dp/B073RF5NM2/ref=sr_1_4?ie=UTF8&qid=1533842389&sr=8-4&keywords=cpu+8+pin+extension

It is different than a PCIe cable in that the wires are in a different arrangement. So do not connect it to a PCIe connector.

Do be aware that third-party extensions and adapters can use thinner-gauged wire than what should be used, which can result in melted wires and possibly some damage. This is why I would encourage you to avoid an extension and make the cables reach.
 
Is saving $5-15 on an extension cable worth the risk of frying your PC?

If you are deadest on this, then instead of hacking up your psu cable to adapt to a 6 pin cable to then try to adapt to an 8 pin connector, just solder on extra wire to the proper 8 pin connector. At least this way you reduce the probability of mixing a wire and frying your board or cpu.
 
Hi all, i managed to connect the 4+4 CPU pin's in the slot :), im typing from the new PC right now. Is there anyway to test everything?

ps: windows can't detect my GPU (gtx 1060) i tried a lot of things, but i will create a topic for this problem

thank you all.
 


Is your monitor connected to the GPU and do you have a picture?
IF yes then your gpu is running fine and you only need to instal the Nvidia driver throught their website :)