It appears to be like like AMD’s newest AGESA ComboAM5PI 1.0.0.4 firmware has achieved extra hurt than good. As tipped by {hardware} leaker chi11eddog (opens in new tab), the firmware reportedly disables some cores on the Ryzen 5 7600X, prompting numerous motherboard distributors to tug the replace from their web sites.
The flawed firmware would not have an effect on all Ryzen 5 7600X, probably the greatest CPUs. It solely impacts the samples that leverage a dual-CCD design. Given the Ryzen 5 7600X’s hexa-core, 12-thread configuration, a single CCD is greater than adequate. Nevertheless, some Ryzen 5 7600X processors arrive with two CCDs underneath the hood. Clearly, AMD fused off the extra CCD, so you possibly can’t simply magically unlock extra cores.
Chipmakers reminiscent of AMD, Intel, or Nvidia purpose to maximise silicon manufacturing and habitually recycle dies that do not meet the necessities for particular fashions into their lower-tier merchandise. That is how twin CCDs discovered their means into the Ryzen 5 7600X. Looking back, AMD utilized the identical technique for earlier Ryzen 7 5800X and Ryzen 5 5600X processors.
It might appear that the AGESA ComboAM5PI 1.0.0.4 firmware has difficulties distinguishing the single-CCD Ryzen 5 7600X samples from the dual-CCD ones. It is believable that it would not appropriately acknowledge the CCD and, in consequence, disables one of many processor’s cores. In accordance with the chi11eddog, the firmware locks down Core0.
MSI and ASRock have eliminated the firmware from their X670 and B650 motherboard product pages. Then again, Gigabyte nonetheless has the firmware up for obtain on a few of the model’s 600-series motherboard assist pages, however it is best to keep away from it in any respect prices.
Should you just lately upgraded your motherboard’s firmware and have observed an evident efficiency loss in your Ryzen 5 7600X, it is best to roll again to the earlier firmware. A repair is reportedly on the way in which, and the brand new firmware ought to arrive within the subsequent couple of weeks.
