In a recent interview with Gordon Mah Ung of PCWorld, AMD further stated that the vapour chamber coolant is to blame for the heat issues on its Radeon RX 7900 XTX graphics cards.
Scott Herkleman, AMD’s Senior Vice President and General Manager of the Graphics Unit, participated in the interview and confirmed that the Radeon RX 7900 XTX reference graphics cards do, in fact, have a defective vapour chamber on a small batch of cards that wasn’t filled with enough coolant, which is the main cause of the overheating issues that cause GPUs to run at temperatures of up to 110C Junction and cause thermal throttling.
Der8auer presented the same notion on his YouTube channel by dissecting a Radeon RX 7900 XTX reference graphics card in its entirety and drilling into its vapour chamber to suggest that the amount of fluid present inside would be a possible problem. Currently, AMD themselves has essentially verified this. What Scott has to say about it is as follows:
It all comes down to a small batch of vapor chambers actually have an issue, not enough water and it is a very small percentage and we said that’s the root cause.
We have identified this, you spent a lot of money if you bought this XTX made by AMD, we want to fix it for you, we have the fix, we are ready to fix it for you, just call tech support if you bought it from AMD.com or bought it from an AMD AIB Partner. They have units, we know how to identify that they are good the units and make sure that we ship it to you. We want you to have a great product and we want you to be confident in that product.”
The business doesn’t have enough Radeon RX 7900 XTX reference graphics cards for RMA reasons, according to sources based on emails from AMD. It seems that customers may have to wait more than two weeks to get a new machine, as Igors Lab indicated in two emails. This is only assumption at this point, but the emails seemed pretty authentic, so it will be interesting to watch how the RMA procedure plays out over the next several weeks. A few weeks ago, AMD began refusing RMA requests!