AMD was set to launch its new Zen 5 processors on July 31st, including the 16-core, 32-thread Ryzen 9 9950X, a chip it’s calling “the world’s most powerful desktop consumer processor.” Instead, it’s now announcing a one- to two-week delay “out of an abundance of caution.” The Ryzen 7 9700X and Ryzen 5 9600X will now launch on August 8th, while the Ryzen 9 9950X and Ryzen 9 9900X will go on sale on August 15th.

This is not because AMD’s found any issues with the actual chips, spokesperson Stacy MacDiarmid tells The Verge. Rather, AMD discovered some of its chips didn’t go through all of the proper testing procedures, and the company wants to make sure they do.

Here’s the full statement from AMD computing and graphics SVP Jack Huynh:

We appreciate the excitement around Ryzen 9000 series processors. During final checks, we found the initial production units that were shipped to our channel partners did not meet our full quality expectations. Out of an abundance of caution and to maintain the highest quality experiences for every Ryzen user, we are working with our channel partners to replace the initial production units with fresh units. As a result, there will be a short delay in retail availability. The Ryzen 7 9700X and Ryzen 5 9600X processors will now go on sale on August 8^th and the Ryzen 9 9950X and Ryzen 9 9900X processors will go on-sale on August 15^th. We pride ourselves in providing a high-quality experience for every Ryzen user, and we look forward to our fans having a great experience with the new Ryzen 9000 series. 

AMD already recalled the chips that needed the additional testing before they could go on sale, and it sounds like that testing is going smoothly; AMD’s engineers are confident the chips won’t be delayed further, according to MacDiarmid.

Tom’s Hardware reports that those crashing Intel chips have been permanently degraded and will need to be returned to Intel; we’ve reached out to Intel with a list of questions about how it’s handling the situation.

AMD is about to launch its Zen 5 laptop chips, too, codenamed Strix Point and formally known as Ryzen AI 9 300. AMD recently revealed a new higher-end chip in that lineup, the Ryzen AI 9 HX 375, with a more powerful 55 TOPS NPU.