[SOLVED] 6-pin PSU to 8-pin 7800 XT ?

[makkafon]

Hi!
Just bought a 7800 XT with 2 x 8-pin connectors but I'm using an old TX850W Corsair PSU that only has 2x PCI-E cables. Can I use the 6-pins or do I need a new PSU? Thanks!

 

[bill001g]

Corsair site is really strange that they don't have details about the cable connections. From the photos it appears as though the video cables are the fairly standard 6 + 2 cables. You do not really need a 850 watt power supply if you do not have a higher end video card and all those use 8 pin connectors. I would doubt a power supply this new only has 6 pin cables.

So I think your power supply actually does have 8 pin cables they are just split 6,2.

If you look at what those extra 2 pins do they do not actually provide any power. They use the same 3 wires pairs on the 6 pin connector to get the power. What they tell the video card is the wire size being used is large enough that the video card can draw more power. There are adapters that let you cheat and plug actual 6 pin power into 8 pin sockets and trick the video card. Using these adapter though means that you better be sure the actual wires can really provide the power........I strongly suspect though none of this really matters in your case since I think you have 8 pin cables.

 

[makkafon]

Ah yes you're right I just noticed this after, was in a bit of a rush. My bad 😅 problem solved!