Question Corsair AX1000 PSU with 4070 Super ?

Dec 11, 2024
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My last new build was a while ago 2018: i7 8700, 1080 GTX

I prematurely upgraded from a Corsair RM650X to the Corsair AX1000 late 2020 during the pre release hype of the 3080 but after release I couldn't justify the price/performance.

I've just started working on a parts list for a full new system based around Ryzen 7 9800X3D and NVidia 4070 Super. Not much is in stock so taking my time, but have already ordered the 4070 and planned to swap it into my current system for an interim upgrade.

As is typical I'm quite out of the loop on hardware and just getting up to speed, and just found there might be issues with older PSUs and 40 series cards.

First question: I know the Corsair AX1000 is decent quality (made by Seasonic, as I recall), but as it is ATX12V v2.4 I would just like to double check whether it should be ok with the 4070? Presumably the card comes with an appropriate adaptor cable that would suffice?

Second question: Assuming that they can work together, are there any reasons not to bring the AX1000 across to my next full build?
 
I prematurely upgraded from a Corsair RM650X to the Corsair AX1000 late 2020 during the pre release hype of the 3080 but after release I couldn't justify the price/performance.
Is this the unit you're referring to;
https://www.corsair.com/us/en/p/psu...2pYNw62hr9iL6TC-ktN_toj7EL0CYBXq#tab-overview
?
You're going to be fine. If your GPU needs a 12VHPWR connector/cable/harness, you can look at these options;
https://www.corsair.com/us/en/p/pc-...5-0-12v-2x6-type-4-psu-power-cable-cp-8920284
Further reading;
 
Thanks for the reply. That's my exact PSU, yes.

The 4070 I've ordered includes a "16 pin two 8-pin power adaptor" which I am guessing can connect to 2 separate PCIe cables, which would effectively be the (less neat) equivalent of the one you've linked?

And if I understand my PSU correctly, they plug anywhere into the block on the right side as labelled (i.e. the cable determines the function PCIe vs CPU, not the socket?)

(I don't recall any such confusion when assembling this before - perhaps because I only had 1 of each cable to worry about.)
AX1000_05.webp
 
Yeah. The adapter is a good thing. I was referring to having a native harness stemming from the PSU and terminating at the the GPU. Just make sure the connector on the GPU side is fully seated with or without the adapter.

Yes. So long as you plug the harness into the right key+use the right cables, then you're fine.