Whats the Deal with 6 pin and 8 pin power connectors? GPU not powering on.

VioDes

Prominent
Jun 19, 2017
38
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530
hi guys,

I know this question has been asked prolly a thousand times before, yet still here I am.
My PSU is a Seasonic G series modular 550 watts. It is semimodular, what sparked my confusion. When I look into the PSU-Slot for the 8-pin pcie cables, I see 8 holes, each populated with some wiring on the inside. So far so good. When I look into the corresponding holes of my GPU (palit gtx 1080) I see nothing surprising, 8 (or 6 on the 6-pin connector) slots with wiring in each.
When I look at my cable however, i see 8 slots but only the 6 have wiring on the inside.
those additional 2 are basically only for decoration. I'm referring to the psu-side of the cable.
Is that intentional or is it simply a bugged out cable?

I sadly dont have any spare parts with which i could check for failures. It is an all new build, that refuses to boot into bios. I limited the issue to either the gpu or the psu, and I'd like to not send back the wrong one.

Hope you can help me

Cheers
 
Solution
Ports in the PSU are shape coded, whatever fits in them is just for that one, you'd need a large hammer to make a cable go into wrong one. On the other side of cables connectors are also shape coded. You can't miss. So, when you plug into PSU all cables available, whatever connector is left empty, that cable is missing. If there's a wire missing in a particular cable that mostly means it's intentional as some, mostly ground are possibly doubled up.
Ports in the PSU are shape coded, whatever fits in them is just for that one, you'd need a large hammer to make a cable go into wrong one. On the other side of cables connectors are also shape coded. You can't miss. So, when you plug into PSU all cables available, whatever connector is left empty, that cable is missing. If there's a wire missing in a particular cable that mostly means it's intentional as some, mostly ground are possibly doubled up.
 
Solution

VioDes

Prominent
Jun 19, 2017
38
0
530
so essentially what you are trying to tell me is, that the psu probably isnt faulty, right?
how often does it happen, that single ports on a psu dont work?