Question 2vs 3 PCie cables on an Aorus 3080 Extreme

SteelScorpionX

Prominent
Dec 5, 2019
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Hey guys i just installed my psu into the case its rm850x, now i have 3080 Aorus extreme that have triple 8 pin slots.
Now i connected all of my 3 PCIe cable to the power supply and i have noticed that each PCIe cable has another 6+2 pin in addition tp the 8 pin.
So i thought to myself if its possible to connect only 2 PCIe cables so it would be 4 times 8 pins. And then i will use 3 and leave one dangling.
Is it possible or that i should just connect the whole 3 from the PSU so it will have all the power or something

Here is a photo of 1 cable from the PSU https://ibb.co/KF36pV4
 

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