Handful of users claim new Nvidia GPUs are melting power cables again
Handful of users claim new Nvidia GPUs are melting power cables again
At this point, it’s unclear whether the issues are one-offs or systemic.
The person on reddit used a third party cable instead of the one supplied with the device.
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.
What I've learned from this whole fiasco after owning a problem-free 4090 for over 2 years:
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.
Strolls nervously through room with RX 580...
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.
Use the 12VHPR cable that came with your PSU
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.
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.
It's poor design on Nvidias part. There is no load balancing.
Well...I mean...that's kind of bound to happen when you draw 600W into a device that size I suppose. I feel like they've had this issue with every *090 card, whether it be cables or otherwise.
God damn... 600w?!
Is this thing supposed to double as space heater?
What do people do in the summer. That's got to cost monthly cash to run it and cool it. 20 bucks.?
Running 600W for 12 hours a day at $0.10 per kWh costs $0.72 a day or $21.60 a month. Heat pumps can move 3 times as much heat as the electricity they consume, so roughly another $7.20 for cooling.
All electronics double as space heaters, there’s only a minuscule amount of electricity that’s not converted to heat.
Yup. Pretty dumb.
My +10 year old GTX780 would pull 300W at full tilt, and it has only a ridiculous fraction of the compute power. The radeon 6990 would pull +400W... high end GPUs have been fairly power hungry for literally more than a decade.
Yeah pulling nearly 600w through a connector designed for 600w maximum just seems like a terrible idea. Where’s the margin for error?
Yeah my 3090 K|ngP|n pulls over 500w easily, but that's over 3 8 pin PCIe cables, all dedicated. Power delivery was something I took seriously when getting that card installed, as well as cooling. Made sure my 1300w PSU had plenty of dedicated PCIe ports.
I really appreciate the specificity of the headline, rather than the clickbait it could have been.
Better would have been:
Handful of users complain about 3rd Party Cables Melting Their 5090FE.
Well, only a handful of users exist.
Alternate title:
Nvidia SLAMMED as 5090 GPUs start caching on FIRE
I can really recommend both der8auers video and Buildzoids video on this. Der8auer has good thermal imaging of imbalanced current between the wires between two 12V HPWR plugs, and Buildzoid has the explanation why the current can't be balanced with the current setup on 5090s.
And it burns, burns, burns
The gpu of fire
The gpu of fire
I never get the newest thing, people who buy brand new stuff are just beta testers for the product imo
What did it sayyyyyyy
All that cost and this is what you get…
A handful? Wow that's gotta be like 50% of the 50 series out there!
Are people improperly connecting them again?
The problem seems to be load balancing, or lack thereof. A German guy on YouTube noticed that his cable got up to 150°C at the PSU end, due to one wire delivering 20 or 22 amps, while the others were getting a lot less pumped through them. 22 Ampere is pretty much half the power draw of the card, through one wire instead of three if the load was properly balanced between them. That's why it ran so hot and melted to shit.
If you've ever worked on your car's 12 V electrics system, you'll know how thick the wires (and corresponding connector sizes) are for things like window defrosters that will run through a 20 or 30 amp fuse.
A German guy on YouTube
You probably mean der8auer?
22 Ampere is pretty much half the power draw of the card, through one wire instead of three if the load was properly balanced between them.
Apparently the reference design only has one current shunt, so they can't even measure the imbalance. Madness.
Every picture I've seen has been an outside pin. So my theory is it's the cable getting tugged for cable management and even though it's clipped in, it's not making as good of contact.
That or just a bad cable design. I've bought a few cables from cablemod and I'm not happy with the wiring they used. Their website says "Crafted with 16AWG wiring" but they also brag about the flexibility of their cables so I assume they're using stranded wires instead of a solid core so you lose a decent chunk of ampacity (and heat sinking).
1080ti days were just simpler times!
Strange, a second nickel just appeared in my hand.
I got a dime. Also, the monkey's paw just curled another finger, but that's not important.