Material analysis
Let’s take the good adapter, use the 300x magnification and laser through the surface directly down into the spring contact. The result is as always: a layer of tin around 1.5 µm thick lies on a layer of nickel around 2 µm thick and inside we have pure electrolytic copper. This is well known and is fine.
But what can we expect with the new, non-locking adapter? Same position, same measurement, same result? No, not at all. And we can also see why the plug jams when connecting: the coating over the copper is far too thick! There is also far too much nickel on the copper. It looks as if the contacts have been galvanized twice by mistake. And the flourine particle has no place there either, please.
Summary and conclusion
The fact is that the adapter tested today is not only dangerous due to the lack of locking, but also performs far too poorly in terms of quality. This cannot and must not be used as an end customer, but it requires a real sensitization of the users, so that even a layman can recognize such things and protect himself from potential damage. That’s why I’ll summarize the whole thing once again in bullet points:
- The connector must always engage in the header of the graphics card so that it can be felt and above all heard, regardless of whether it is an adapter piece or a native power supply cable.
- If it jams as much as I did when plugging it in, then it’s better not to use blind force. It’s best to make two or three more attempts without tilting it sideways. If it still doesn’t click into place, then further attempts will only damage the pins of the header on the graphics card. A replacement must therefore be used urgently or the product must be returned.
I emphasize once again: There is no need to panic, but there is a need for healthy caution. So when plugging it in, always make sure that it really clicks and cannot be pulled out so easily afterwards. That’s actually all there is to it.
Finally, I’ll show you how to do it properly. Here is the clean (and completely virgin) connector of a 90° angle adapter from a major power supply provider with an exclamation mark in its name, whose spring contact sits exactly where it belongs.
And then a contact that has already been used after a total of 5 plugging attempts. You can see that it is only slightly bent open, but still grips almost perfectly. And there are no major signs of abrasion. It fits much better and also locks perfectly. Especially as you don’t have to use as much force as with the NVIDIA adapter
With this in mind, I wish everyone a happy plugging in, it will click 🙂
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