Seasonic Focus 850w, need another 8pin CPU cable, what is the least jank way to do this?

toasty99 · December 7, 2022

The situation is that I have a 7980xe and a Rtx 2080ti running off a 800w non modular Apervia power supply and it's just not cutting it. System shuts down under load occasionally, the power supply is a lower tier one and I'm running too close to the limit I think.

I've got various modular or semi-modular 750w power supplies. An Antec EAG Pro 750w (this is the semi modular), EVGA 750gr, Gigabyte 750gm. I also have a Dell 1000w out of an Alienware R10 the cables are too short to use in a standard case. I also have a topower 800G that is brand new in box (crossfire and SLI badges to warn you how old it is) and would probably start a fire if used that I could steal cables from too.

I also have the really fun blow stuff up cables. A dual-molex to 6 pin adapter. A 6 pin to 8 pin CPU power. A 6 pin to dual 6+2. Dual 6 pins to an 8 pin.

Now, the best PSU I have is the Seasonic Focus 850w. Problem is, it only has the 24 motherboard cable, one 8pin CPU connector, 2x 6+2 cables (a daisy chain), 2 molex, and 2 sata. I don't have the other cables for it. I need to have 2x 8pin CPU power, 4 sata powers, and preferably I would like more pci-e outs in case I ever get a GPU that needs more. So, I need to either find modular cables from one of the other PSUs that will work and/or or try to do the adapter mess in a way that will work without blowing stuff up or starting a fire.

Anyone got advice and the pinouts for these psus to see what'll work? It's really hard to find this data for other than Seasonic lol.