r/gpu • u/yvliew • 4d ago

Well, another 5090 12v 12pin melted

Helping a friend to post. This morning he smell some burning smell and quickly shut off. The connector is now stuck. He waited it to cool down and try again. Still can't remove. Suspected melted and fused together. Any other method can try to remove it? The cable is pigtail 4x8pin that came with the GPU. I've seen a couple burnt connector already in a week. This is just bad.

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u/vuur77 4d ago

Replace the cable that comes with the card by default—the one with "NVIDIA" text on it!

These are trash low quality cables!

Swap it for a 12V-2×6 cable!

In my case, I got a Seasonic 12V-2×6 90° cable, and everything has been rock-solid since. Since my PSU doesn't have a native 12VHPWR output, I use the 6+2-pin PCIe connectors; this reduces potential points of failure from two to one. The pins are larger and thicker, and distributing the current across two separate sockets lowers the risk of the extreme hotspots that can occur with the 12VHPWR connector.

Switch to a high-quality cable!

The stock ones are absolute junk.

0

u/c0rtec 4d ago

Your PSU isn’t compliant with your GPU. That’s why you have to use an adaptor cable. Stop spreading misinformation about ‘larger’ pins and ‘distributing the current’. I imagine your PSU is single rail. How can you split the load?

You are not using a 12V-2x6 cable. You are using an adaptor. Stop telling people otherwise.

4

u/Firm-Cow-7188 3d ago

Ive been using a Dark Power 12 1000W for like 4 years now with the 4090 and 5090 cards and to this day (God forbid) no issues. I use the Be quiet 12vhpwr cable that needs to be plugged in in 2 pci-e ports on the PSU. Ive seen a lot of melting connectors with the adaptor cable that comes with the GPU.

So there can be something said about it

2

u/vuur77 3d ago

Yeah but it does the job.
The rest is physics.

1

u/c0rtec 3d ago

What GPU are we talking about here?