Question What's the safest way to use a Corsair HX1200 with an RTX 4090?

K1llrzzZ

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Oct 27, 2013
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Hi! I have a Corsair HX1200 which I'm planning to use in my new build that has an Asus RTX 4090 TUF OC. The adapter bundled with the card has 4 8 pin PCIe power connectors, they recommend using 4 dedicated cables and not use pigtails.
I watched this video and from what I'm getting here he's saying the HX1500i which is even more powerful then my PSU he says "I would think they would have 4" he doesn't finish the sentence but from that I assume it doesn't which probably means mine doesn't either. Currently I have an MSI SuprimX 3080 Ti that has 3 8 pins and I'm running a 9900K in a Rog Strix Z390-H Gaming board and I bought the Strix Z790-F gaming board with an 13900KF which will also need 8 pins that go into the motherboard from what I understand.

What's the safest setup for this system? Can I use 4 separate cables with this PSU? Should I only use 3? Also should I use the PSU in single or multi rail mode?

Thanks!

 

K1llrzzZ

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Oct 27, 2013
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Safest setup is to not use the provided adapter, instead get PCIe 5.0 cable directly from Corsair.
I tried that, it's out of stock everywhere. People also recommended the Cablemod adapter, but using a third party cable might void the warranty. I'm not sure about Corsairs cable, I mean I'm using the 8 pin cables that came with the PSU anyways so I think that might not be an issue but like I said, sadly I can't seem to get that cable anywhere.
 

DRagor

Illustrious
Well, the current development is that you definitely don't want to use adapter provided with card. They are made in such way that any bending of the wires creates very high risk of melting the connector. If you can't get proper Corsair or Cablemod cable then you should not use 4090.
 

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