Question RTX 5090 cable temps ?

[kalern123]

So basically after all the news about cable melts it got me a bit worried. So I tried a "load" test. Not an official one, but I tried Indiana Jones on max settings for around an hour and it drew 560 Watts stable and the GPU temp reached 75c.


The highest I was able to measure on the connector was 78-80c while the temps on the cable itself were around 72. It wasn't easy to measure each individual cable, but it was no more than 7 c between the hottest and coldeset cable.

Is 80c a worrying temperature you think or is this alright for an hour on pretty much max load?

EDIT: It's not the RTX 5090 FE by the way. It's the MSI RTX 5090 Trio OC

 

[COLGeek]

What PSU are you using? Did it come with the proper cable or did you have to use an adapter?

 

[kalern123]

What PSU are you using? Did it come with the proper cable or did you have to use an adapter?

No adapter. Proper cable and it’s the nzxt 1200C 1200W PSU

 

[USAFRet]

Is 80c a worrying temperature you think or is this alright for an hour on pretty much max load?

80C is 176F
To me....that is FAR too high.

 

[kalern123]

80C is 176F
To me....that is FAR too high.

Yeah I don't know. It's exactly in the "crack" where the cable connects with the GPU. I expect the temp to be at it's highest in that area.

 

[XxDarkMario20xX]

Cant you use MSI afterburner to control GPU fans and is the high temps in gaming or in idle?

Yeah and with 5090 and melting cables yeah its worrying news but hopefully you dont experience it

 

[COLGeek]

80C is 176F
To me....that is FAR too high.

Agreed. this seems rather warm. Have you contacted NZXT about this?

 

[kalern123]

Cant you use MSI afterburner to control GPU fans and is the high temps in gaming or in idle?

Yeah and with 5090 and melting cables yeah its worrying news but hopefully you dont experience it

Max load for 1 hour

 

[kalern123]

Agreed. this seems rather warm. Have you contacted NZXT about this?

Yeah, idk. I do expect it to get hot with 560W, but I have so little references to go after. I have not contacted them. I would say it's on average around 70-73, it was just at one certain point it reached 80 at a very certain point. I think it might be heat coming from the GPU aswell heating the pins.


When I measure less than an inch away the cables are all 64-68.
Not too easy measuring the temps with a pizza digital thermometer lol

 

[COLGeek]

If NZXT answers in a timely fashion, I'll share the response. Lots of other traffic on this general topic, as I am sure you are aware.

For example: https://forums.tomshardware.com/threads/nvidias-rtx-5090-power-cables-may-be-doomed-to-burn.3873375/

 

[XxDarkMario20xX]

Max load for 1 hour

Yeah, idk. I do expect it to get hot with 560W, but I have so little references to go after. I have not contacted them. I would say it's on average around 70-73, it was just at one certain point it reached 80 at a very certain point. I think it might be heat coming from the GPU aswell heating the pins.


When I measure less than an inch away the cables are all 64-68.
Not too easy measuring the temps with a pizza digital thermometer lol

I would contact them more people report these issues then they have to do something. This melting cable thing should not be happening!

 

[COLGeek]

I am not impressed with NZXT's answer:

When using the 12V-2x6 cable, the cable temperature should remain within safe operating ranges during normal use. While some warmth is normal, the cable shouldn't get hot to the touch. Our C1200 Gold ATX 3.1 power supply and cables are designed to meet ATX 3.1 specifications and include thermal protection features to ensure safe operation. If you notice the cable becoming unusually hot, please ensure: - The cable is properly seated at both the PSU and GPU connections - There are no bends or pinch points in the cable - Adequate airflow around the cable and GPU area Thank you!

 

[magbarn]

I am not impressed with NZXT's answer:

When using the 12V-2x6 cable, the cable temperature should remain within safe operating ranges during normal use. While some warmth is normal, the cable shouldn't get hot to the touch. Our C1200 Gold ATX 3.1 power supply and cables are designed to meet ATX 3.1 specifications and include thermal protection features to ensure safe operation. If you notice the cable becoming unusually hot, please ensure: - The cable is properly seated at both the PSU and GPU connections - There are no bends or pinch points in the cable - Adequate airflow around the cable and GPU area Thank you!

That’s a canned CYA answer.

 

[kalern123]

I am not impressed with NZXT's answer:

When using the 12V-2x6 cable, the cable temperature should remain within safe operating ranges during normal use. While some warmth is normal, the cable shouldn't get hot to the touch. Our C1200 Gold ATX 3.1 power supply and cables are designed to meet ATX 3.1 specifications and include thermal protection features to ensure safe operation. If you notice the cable becoming unusually hot, please ensure: - The cable is properly seated at both the PSU and GPU connections - There are no bends or pinch points in the cable - Adequate airflow around the cable and GPU area Thank you!

Thanks you for helping me out with this.

The response from NZXT is so basic. All of the things mentioned are obvious in my opinion.