According to multiple sources reddit, twitter, TechPowerUp reports that AMD has significantly improved DDR5 memory support on the AM5 platform with a new microcode update known as AGESA 220.127.116.11b. This update allows DDR5 frequencies up to 8000MHz without issue on some boards and the optimal 1:1 (UCLK:MEMCLK) ratio up to 6400MHz. Gigabyte and ASRock have already published stability runs with their new BIOS updates, showing that 8000MHz and 7200MHz work flawlessly. Aorus X670E Master and X670E Taichi.
At the moment only a few AM5 motherboards have the new microcode update. Still, we suspect that updates will become more readily available in the coming weeks, depending on each motherboard manufacturer’s launch schedule.
Ryzen 7000. Runs DDR5-8000. On an 8-layer daisy chain motherboard under $300. This new BIOS is completely insane. DDR5-8000 may be stable on Ryzen before it’s stable on Intel lol. pic.twitter.com/96K334sUniJuly 19, 2023
An ASRock engineer shared on Reddit many of the changes AMD made in the 18.104.22.168b microcode update that significantly increase memory support. One of the biggest settings is a new setting called DDR5 Nitro Mode that modifies some of the timing parameters within the memory controller of Ryzen 7000 CPUs to enable higher frequencies. Memory training has also undergone some significant changes, allowing users to run the initial memory training algorithm for longer if desired, a potential hood for problematic DDR5 memory kits running on AM5 motherboards. can be improved.
According to engineers, the new update should allow most Ryzen 7000 CPUs to run comfortably at 6400MHz without failing at 1:1 ratios, and when running at higher ratios, some motherboards and CPUs are silicon It will be possible to reach 7600-7800MHz depending on the lottery. This is a big change from the past when he could not foresee anything above 6000MHz from a reliability standpoint.
Of course, these changes were brought in specifically by ASRock engineers, so I wonder if some of these changes are board-specific, or if all these changes are from the AGESA microcode update itself I don’t know. In any case, the new update fixes many of the memory issues that AMD’s new AM5 platform has been grappling with since its inception, as well as blazing fast memory kits in the 7000-8000MHz range (whether stock or manually overclocked). It seems to improve support. ).