I didn’t really want to believe it at first, but after receiving feedback in the double digits, I combined what was pleasant for the customer with what was interesting for me. I analyze and repair the card at my risk, so that the buyer gets a working card back in any case and I am at least smarter in the end. The 30 Kelvin delta between GPU temperature and hotspot temperature just triggered me too much. Once a defective card or two, ok, that can happen. But when it comes to many very identical cases, I feel (challenged).
And without spoiling it big and wide: PowerColor definitely has a (home-made) problem. Even with the quality management (QM). But if I have to be honest, it’s annoying, because I don’t really want to have to report about the failure of the manufacturer every day. But it seems that I’m quite suitable as a grief box for bruised buyers, because the mails with product complaints pile up more and more. Always I can not make such time-consuming analyses, but now and then it goes already once.
Since I always record such things, also for legal reasons, as a video and in critical cases also call in witnesses, it has become primarily a YouTube video. So this time I’m going the other way around and writing an article based on a video. That’s why some of the images are also taken from the clip, although I only use the greenwall differently and have adapted the background of the website. The rest is identical.
In the meantime, PowerColor has contacted me and sent me a suitable statement:
Inventory
No sooner said than done, so I unpacked the card and first did my own temperature test as an inventory. I used a savegame from Borderlands 3 with rBAR enabled in Ultra-HD and the maximum graphics settings. The PowerColor RX 7900XTX has a TBP of 375 watts in the standard BIOS, which it also used to 100%. And yes, I was able to recreate the problem exactly, as the card ran at 80 °C GPU temperature when installed in the test case, and up to slightly over 110 °C at GPU hotspot. Then, however, the fans howl like hungry wolves in a Siberian full moon night and it gets loud and above all slower. This is called throttling, but the customer rather thinks of something like vomit limit.
A full 30 Kelvin temperature difference (delta) between the two temperatures is nothing to bring tears of joy to your face. On the contrary, that’s simply way too much. While the MBA card (AMD reference) of the RX 7900XTX shines with 18 to 19 Kelvin and the Sapphire Nitro+ Vapor-X is only just behind with 22 Kelvin (<20 Kelvin after repaste), here PowerColor has a very obvious problem. Because reaching the limit of 110 °C is not an isolated case, if I can believe all the feedback.
Below the GPU package we still have a whopping 77 °C, which matches the measured values of 80 °C for the graphics chip. The chipsets of the memory controller are a bit cooler, but it’s not pretty.
So the only thing left to do is to disassemble the card, so that we can find out together why such a potent cooler fails so grandiosely….
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