What simply occurred? Every on occasion, AMD releases a brand new replace to the AGESA firmware that improves efficiency, provides stability, provides further CPU help, and extra for AMD motherboards. Usually, these updates go easily and work flawlessly. Unfortunately, the newest AGESA software program replace is on no account good.
Last week, AMD launched AGESA ComboAM5PI 1.0.0.4, the motherboard producer’s newest software program replace with the standard stability upgrades. Most importantly, it additionally provides help for the not too long ago launched Ryzen non-X CPUs and the upcoming X3D processors, which is able to hit cabinets in February.
Unfortunately for AMD, {hardware} leaker “chi11eddog” has revealed that new software program has by chance disabled one or two cores on sure Ryzen 5 7600X processors. 7600X CPUs with a single-core composite chip (CCD) will not be affected by this bug, however dual-CCD processors will not be so fortunate.
Users with dual-CCD processors who up to date their BIOS inside the transient time it was accessible for obtain both skilled extreme efficiency loss or, worse, the pc merely would not boot.
Some motherboards initialize the boot course of strictly with one core, normally the primary core, known as Core 0. The largest drawback is that Core 0 is a disabled core, which suggests the PC will not boot. No particular numbers on the efficiency hit, however disabling a whole core (or two) would positively end in a noticeable drop.
MSI & ASRock eliminated X670/B650 AGESA 1.0.0.4 (SMU 84.79.204) BIOS from web site.
Rumor has it that some 7600X cores are 2-CCD SKUs, with Core0 disabled, 1.0.0.4 will not boot. AGESA 1003 is sweet.
The new SMU 84.79.210 will repair it. The 1.0.0.4 BIOS continues to be on the Gigabyte web site. pic.twitter.com/N8wnryyXgg— chi11eddog (@g01d3nm4ng0) January 7, 2023
As you possibly can see above, MSI and Asrock rapidly pull any BIOS updates that characteristic the brand new firmware from their respective help pages after receiving reviews. When chi11eddog’s tweet went stay, Gigabyte hadn’t eliminated the BIOS replace obtain for the affected software program. However, these hyperlinks had been now not accessible later that day.
Thankfully, AMD quickly launched a patched model of the AGESA ComboAM5PI 1.0.0.4 firmware that does not inadvertently disable any cores. So far, there have been no destructive reviews concerning the new software program, so hopefully the second time round works like a appeal. At the time of writing, MSI has launched a BIOS replace with mounted firmware. ASRock and Gigabyte have not executed that but, although.
Overall, it is an odd bug from AMD, and it is odd how this bug has labored out by testing and beta BIOS updates that embody firmware. The problem wasn’t found till after the official BIOS launch went stay, however fortunately, the producer was in time to ensure customers would not obtain it and endure any penalties. Thanks AMD for the short patch effort.
