4090 power

[KingBennon]

Hello everyone,

I bought a Zotac 4090 gaming amp extreme AIRO, and it came with a 12pin to 4xPCIE connector. 

I don't have a 12pin on my PSU (RM1000i).

So I bought a Corsair 12VHPWR, it has 2xPCIE to 12pin on it.

Would it be ok to use this?

 

I'll be also using a EKWB waterblock, so I won't need the fans or anything running on it. 

 

Thank you in advance for the help!!

[GuiltySpark_]

Yes, that's what it's designed for. 

[KingBennon]

3 minutes ago, GuiltySpark_ said:

Yes, that's what it's designed for. 

Thank you! I thought so but just wanted to make sure. 

Hope you have a great day

[Agall]

7 minutes ago, KingBennon said:

Thank you! I thought so but just wanted to make sure. 

Hope you have a great day

As long as you've validated that your precise model of RM1000i is a 'type 4' power supply, then the cable should work. If its not, then I wouldn't recommend trying it.

 

LEGACY PSU CABLE COMPATIBILITY (corsair.com)

 

Example being the RM1000x I had wasn't a type 4, so I couldn't use this first party internally adapted cable. Mine was the model before it unfortunately. Its an unfortunate thing Corsair seems to do where they'll make multiple massive changes without releasing a new model to properly designate what's supported, leaving it up to the consumer to figure it out themselves.

 

Worst case, use Corsair's live chat feature on their website and ask them if your specific model of power supply supports the cable. I'd find that either from the retailer you purchased it from in your purchase history or just by looking at the sticker on the PSU.

[Blai5e]

@Agall - Corsair TYPE 3 & TYPE 4 PSU cables are electrically identical barring the 24-pin cable so your TYPE 3 Corsair PSU can absolutely be used with the Corsair TYPE 4 12VHPWR to 2 x PCIE cable.

[Agall]

15 minutes ago, Blai5e said:

@Agall - Corsair TYPE 3 & TYPE 4 PSU cables are electrically identical barring the 24-pin cable so your TYPE 3 Corsair PSU can absolutely be used with the Corsair TYPE 4 12VHPWR to 2 x PCIE cable.

I was told "no" specifically by Corsair's technical support based on the model I had. Unless they've changed that since, Type 3 were not supported by the 2x8pin to 12VHPWR cable.

[Blai5e]

@Agall - Corsair's documentation begs to differ, from Corsair's Legacy PSU Compatibility page

Quote

Disclaimer: The only difference between Type 3 and Type 4 cables is the pinout of the 24-pin ATX cable; all other cables (SATA, PCIe, etc) are the same.

 

My understanding is the actual connectors on the PSU side differ slightly between TYPE 3 and TYPE 4. I have a few sets of Cablemod Pro full replacement cable kits (all C-Series Type 3) that I use between three different PSU's, HX1200i, AX1200i & AX1600i. The only change I have between these PSU's is the 24-pin I ordered specifically to use with my AX1600i.

[Agall]

25 minutes ago, Blai5e said:

@Agall - Corsair's documentation begs to differ, from Corsair's Legacy PSU Compatibility page

 

My understanding is the actual connectors on the PSU side differ slightly between TYPE 3 and TYPE 4. I have a few sets of Cablemod Pro full replacement cable kits (all C-Series Type 3) that I use between three different PSU's, HX1200i, AX1200i & AX1600i. The only change I have between these PSU's is the 24-pin I ordered specifically to use with my AX1600i.

Premium Individually Sleeved 12+4pin PCIe Gen 5 12VHPWR 600W cable, Type 4, BLACK (corsair.com)

 

If you can find a first party Corsair cable marked with Type-3 PSU support, feel free to educate me.

 

Personally I started with a Cablemod 4x8pin to 12VHPWR cable that was defective, confirmed to be the right model by Cablemod but would crash the system under load after a couple of minutes, which was refunded. That's when I went to Thermaltake 1600W, which would overheat in a Fractal Design Torrent which I returned, then to my Seasonic Vertex 1200W, which I've had not for like 6 months or so now.

[Blai5e]

@Agall - I too use the CableMod 4 x PCIE to 12VHPWR cable for my ASUS TUF 4090 OC (got the cable before I bought the 4090 during its first release week) and it has worked flawlessly so far. Sorry yours didn't work out as expected. As an aside, don't try to use the Cablemod 180° adapter when you have an EK block on the card. Yes, it'll fit but my Dominator RAM was too high and interfered with adapter with the card mounted vertically. To get it off, I had to remove the backplate of the card just to get to the release tab! EK has since put a warning about incompatibility (not for my reason) but rather they are concerned that the cable cannot be fully seated (which I didn't experience).  

 

Seems strange that Corsair would state that their Premium PCIE GEN 5 12VHPWR 600W TYPE 4 cable wouldn't work with your TYPE 3 PSU. Seems to contradict the disclaimer on their Legacy PSU Cable Compatibility page. Wonder what magic they performed to prevent backward compatibility with TYPE 3 PSU's or the person on the other end of Corsair's Live Chat was misinforming you?

[Agall]

14 hours ago, Blai5e said:

@Agall - I too use the CableMod 4 x PCIE to 12VHPWR cable for my ASUS TUF 4090 OC (got the cable before I bought the 4090 during its first release week) and it has worked flawlessly so far. Sorry yours didn't work out as expected. As an aside, don't try to use the Cablemod 180° adapter when you have an EK block on the card. Yes, it'll fit but my Dominator RAM was too high and interfered with adapter with the card mounted vertically. To get it off, I had to remove the backplate of the card just to get to the release tab! EK has since put a warning about incompatibility (not for my reason) but rather they are concerned that the cable cannot be fully seated (which I didn't experience).  

 

Seems strange that Corsair would state that their Premium PCIE GEN 5 12VHPWR 600W TYPE 4 cable wouldn't work with your TYPE 3 PSU. Seems to contradict the disclaimer on their Legacy PSU Cable Compatibility page. Wonder what magic they performed to prevent backward compatibility with TYPE 3 PSU's or the person on the other end of Corsair's Live Chat was misinforming you?

If I remember correctly, I put in a support ticket for it and it wasn't through their live chat. Its an RM1000x purchased back in 2021 which I validated the model number with Corsair to not support their 2x8pin to 12VHPWR cable.

 

Its likely that it would work since I can confirm that PSU could handle an overclocked RTX 4090 on just two cables daisy chained for weeks, but I didn't want to risk it with their cable.

[Timme]

Just make sure you pair it up with 13900k.