Topic: New fiasco Nvidia GeForce RTX 4090 - page 3. (Read 780 times)

AMD already confirmed they are using 8 pins.  There is also a rumor that they are adding their stacked 3d cache on the 7950xt.

https://www.techpowerup.com/300252/radeon-rx-7000-series-wont-use-16-pin-12vhpwr-amd-confirms

it is ridiculous to use that cable on a card with that wattage, I can understand on an 80 series but on a 90 that has out-of-standard consumption they should have inserted at least 2 to avoid such risks. A cable operating under optimum conditions at 95% load that can handle the slightest change (whether it's a badly ventilated case or a PSU that drops the voltage 0.1 from normal) can lead to disastrous results. without considering that by doing so you limit customization, preventing you from buying third-party cables to change the aesthetics. A cinesata would burn the pc in the first session.

Except for the 4 tiny sensing pins it looks just like the old 8 pin connectors but with more pins. The problem is the poorly designed and built
adapter. It's the shitty riser issue all over again but at much higher power levels. It's Nvidia's fault for poor quality control of their outsourced adapter.

Edit: The right angle connector may solve the issue simply by being better built in addition to avoiding the stress of bending.

My opinion is that this connector initially looks like shit. It is better to use several standard 8 pin connectors. Then the owners of power supplies will not need additional adapters and there will be fewer problems. I hope that AMD will not use such a connector.

I’ve melted 6 and 8 pin pcie due to poor cable construction/pins while mining.  Countless breakout boards melting also.  Eventually settled with no more than 75w per 8 pin cable and many more quality cables to stop it.  Sellers literally sell non compliant cables on the daily.  Then EVGA started giving away a right angle adapter with high spec 1080-1080ti’s due to melting twin 8 pin plugs.  They added capacitors inside this adapter to help with surge currents/stress on the pins.  I got lucky due to having smoke detectors hovering over all miners.  Others not so lucky.

Fast forward to this shit show with stupid tdp’s and custom connectors.  People are literally bending the cables at the connectors 90 degrees to stuff it into cases.  Some people have broken their glass sides due to the pressures exerted on the cables/glass.  People flocking to these 4000’s due to the long drought will be granted some smoking  GPU performance, literally.  The pins cannot sustain such punishment and needs to change.  The whole pcie power standard need rethought IMO.  The person who doubled the 6 to 8 pin power maximum by adding 2 additional ground wires needs beaten.  Now this 4000 series stuff being the wave of the future, no thanks.

450W TDP @ 12V is 37.5A RMS, not accounting for peaks/surges.  The whole multiple wire plug, not equal length wires and poor current sharing, low insertion force pins, is not going to cut it at these levels.  EVGA is the best IMO, and didn’t get there by being dumb.  They clearly made the right choice for a multitude of reasons.

This is probably one of the reasons why evga noped out   Also cable mod is coming out with a right angle adapter which should help with a lot of the issues, but we'll see.

https://store.cablemod.com/cablemod-12vhpwr-right-angle-adapter/

This is pretty crazy. It is widespread or just from one brand? This seems a little unbelievable for a company as established as Nvidia. Especially when they know that heat is a big issue with this product. I haven’t seen a whole lot of complaints about these yet, but I also didn’t know they were getting into people’s hands already. What is your advice? Holding off on purchasing for now?

How many of those pins are actually +12V. Just like the PCIe 8 pin connector, there are only 3 +12V and the rest are GND and sensing connectors.

I had once of those dual Radeon 6990 GPUs which was basically 2 of the Radeon 6970 and it only had 2 * 8 pin connectors. That beast can pull 600 Watts if you overclocked it, I think it used like 450Watts in some high intensity games or mining. I assumed the connectors would burn but they never did.

My guess is that its not the GPU but the adapter which is causing the melting. They need to use better female pins.

This is a fiasco, Nvidia. GeForce RTX 4090 continue to melt and burn, and this is a pattern
After the first case of a GeForce RTX 4090 fire was described, there were suggestions that this was not an accident, and everything would not be limited to this. Indeed, other incidents followed. And in all cases, the same weak point is the connector for connecting additional power and / or the branded adapter cable included in the package.


https://gadgettendency.com/this-is-a-fiasco-nvidia-geforce-rtx-4090-continue-to-melt-and-burn-and-this-is-a-pattern/