I saw this picture while looking at overclocking guides and I wondered if I may have my power setup incorrectly. My GPU is currently connected exactly like the don't do this diagram.
this post was submitted on 27 Aug 2024
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12hpwr/6+6 will do 600 watts using a lot less copper than what you'll find in 4 8 pin pcie cables.
The ATX standard allows for a 5% voltage drop. This shitty 2.1 star rated extension cable uses 18 gauge wire which is typically the worst you'll see in a cable. Using this calculator 30 amps on an 18 gauge 3 foot cable leaves you with 0.1v of drop which is within spec. And there's 3 +12v wires in every 8 pin cable. You'll be fine.
Yes, this is the way. I've had to do the maths manually without one of those calculators before, but people still wouldn't believe me.
Best advice is to always do what your PSU maker recommends. If they put the connector on there it probably means they want you to use it.