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The Exiled · 29.10.2022., 14:35

Citiraj:

This is how the 12VHPWR is done correctly: Crimping instead of soldering and how to supply the GeForce RTX 4090 with power properly

Citiraj:

First there were bent cables, then annoyed buyers of the at least 2000 euro expensive nVidia GeForce RTX 4090, no matter which model or manufacturer. The manufacturer of the 4-pin adapter from 12VHPWR to 4x 8-pin for older power supplies was also careless. And, of course, we learned something once again in the course of our investigations. Since I’m using my brand new cables for the not-yet-released Dark Power Pro 13 from be quiet! i didn’t want to destroy them as well, so I’ll show you what the inner workings of the Dark Power Pro 12 cable look like and what you should still pay attention to, based on the frequently requested 12VHPWR cables. Let’s see today’s article simply as a practical test of how to do it better and right as a manufacturer AND user. The cable from be quiet! is of course representative for all other cables tested here, e.g. from Corsair. Unfortunately, my resources are also limited and the market is virtually empty. Therefore, today I take as an example the cable, of which I own several copies and can thus also easily get over the total loss due to the special operation for demystification.

Crimping (also flanging, braiding or folding) is an alternative to other (electrical) connections such as soldering or welding. Such crimp connections are often found in the production of large series when single strands have to be processed on the assembly line. The connecting element is usually a plug (as in the 12VHPWR, see picture below) or a socket or you connect several wires to one (and then cover that with heat shrink tubing) as in the picture above. The picture shows us again very well how these crimped contacts look like when they are pulled out of the 12VHPWR by force. And you can also see a kind of barb at the lower end of the contact surface, which secures the inserted contact against simply slipping out. It should be clear to everyone that these are not heavy-duty hooks. And that’s why we’re now coming to the second part of making things better, where it’s primarily the user who is called upon.

Izvor: igor'sLAB

Rambling about the 12VHPWR failures

Testing Burning nVidia 12VHPWR Adapter Cable Theories (RTX 4090)