this post was submitted on 10 Feb 2025
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295
Handful of users claim new Nvidia GPUs are melting power cables again (arstechnica.com)
submitted 1 week ago by [email protected] to c/[email protected]
50 comments fedilink hide all child comments
 

At this point, it’s unclear whether the issues are one-offs or systemic.

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[–] [email protected] 50 points 1 week ago* (last edited 1 week ago) (4 children)

The person on reddit used a third party cable instead of the one supplied with the device.

https://www.extremetech.com/gaming/psa-dont-use-third-party-power-cables-on-your-2000-nvidia-rtx-5090-gpu

https://www.reddit.com/r/nvidia/comments/1ilhfk0/rtx_5090fe_molten_12vhpwr/

It melted on both sides (PSU and GPU), which indicates it was probably the cable being the issue.

12VHPWR is a fucking mess, so please don't tempt fate with your expensive purchase.

[–] [email protected] 26 points 1 week ago (3 children)

What I've learned from this whole fiasco after owning a problem-free 4090 for over 2 years:

  1. Don't use 3rd party connectors, and don't use the squid adapter in the box. Use the 12VHPR cable that came with your PSU or GPU. If your PSU doesn't have a 12VHPR connection, get one that does.
  2. Don't bend the cable near the connection. Make sure your case is actually big enough to avoid bending.
  3. Make sure it's actually plugged in all the way. If you didn't hear a click, it's not plugged in all the way.
  4. Don't keep disconnecting the cable to check for burns. The connection is weak and designed to fail after only a handful of disconnect/reconnects. If you followed the 3 steps above perfectly, you have nothing to worry about.

That said, I'm skipping this GPU generation (and most likely the next one as well). Hopefully in 2-4 years AMD or Intel will be on more level grounds with nVidia so that I can finally stop giving them money just to have good ray tracing performance.

[–] [email protected] 16 points 1 week ago

Strolls nervously through room with RX 580...

[–] [email protected] 13 points 1 week ago

I got lucky and picked up a 7900 XTX for a reasonable price last gen and it's been a really great card. I've got a couple systems coming up on needing a refresh (1080 Ti and a 2080 Ti) and I'm planning on upgrading both of them to a 9070 XT. I'm staying away from Nvidia until they start pricing their GPUs at prices actual consumers can afford instead of corporations looking to build AI farms.

[–] [email protected] 2 points 1 week ago

Use the 12VHPR cable that came with your PSU

Except those are burning too.

[–] [email protected] 9 points 1 week ago (3 children)

That's bad, but that aside - It might be time to consider alternate power delivery to these cards. The power they need should warrant having a standard c13 plug directly on em or something.

[–] [email protected] 21 points 1 week ago (1 children)

c13 plug

Who would've thought.... 3DFX was apparently ahead of its time...

[–] [email protected] 7 points 1 week ago (1 children)

Is this the fabled Bitchin' Fast 3d?

[–] [email protected] 2 points 1 week ago* (last edited 1 week ago) (1 children)

I love the IDE connector on the front of the card itself.

[–] [email protected] 2 points 1 week ago

That IDE connector was for SLI...

[–] [email protected] 8 points 1 week ago (1 children)

A mini fusion drive, perhaps?

[–] [email protected] 2 points 1 week ago

Power the house with it when not using the PC, but expect brown outs when gaming.

[–] [email protected] 5 points 1 week ago

Four of the standard 8 pin PCIe power connectors would work well.
The new connector really should have used some large blade contacts to handle 50 amps.

[–] [email protected] 3 points 1 week ago* (last edited 1 week ago)

So, when is the first party cable going to be launched? The device only hast an adapter shipped with it, which won't help you connect to the PSU 12VHPWR.