AMD AGESA 1.2.0.1 BIOS Firmware Tested on MSI X570 & B550 Motherboards, Fixes L3 Cache Performance & Includes Improvements For Ryzen 5000 CPUs

Hassan Mujtaba
AMD AGESA 1.2.0.1 Patch A BIOS Firmware Starts Rolling Out For X570 & B550 Motherboards

AMD's AGESA 1.2.0.1 BIOS Firmware has been officially introduced and comes with a range of bug fixes and improvements for Ryzen 5000 Desktop CPUs. Board makers will be rolling out the BIOSes for each respective motherboard within their 500-series lineup.

AMD AGESA 1.2.0.1 BIOS Firmware Official - Adds Various Bug Fixes And Improvements For Ryzen 5000 Desktop CPUs, L3 Cache Performance Fix Demonstrated on MSI 500-Series Motherboards

According to AMD themselves, the first public BIOSes for Ryzen 5000 Desktop CPUs are rolling out now. AMD themselves confirm the following general fixes and improvements:

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  • Fix: False SMART errors on Hynix NVMe
  • Fix: Intermittent SSD detection for M.2 SATA devices
  • Improve L3$ bandwidth in AIDA64
  • Improve stability if the user disables cores on 5600X/5800X with AMD Ryzen Master

In addition to the above-mentioned fixes/improvements, the AGESA 1.2.0.1 BIOS Firmware also addresses the L3 cache performance issue that users were facing when updating to 1.2.0.0 BIOS Firmware. For that purpose, a test setup with an AMD Ryzen 9 5950X CPU and an MSI MEG B550 Unify motherboard was used. The comparison was done with both the AGESA 1.2.0.0 and the new AGESA 1.2.0.1 firmware. You can see the comparison in L3 Cache performance below:

AMD Ryzen 9 5950X L3 Cache Performance on AGESA 1.2.0.0 BIOS Firmware:

AMD Ryzen 9 5950X L3 Cache Performance on AGESA 1.2.0.1 BIOS Firmware:

As you can see, the AGESA 1.2.0.1 really does fix the L3 cache performance issues and the numbers are back to normal where they should be. Also, MSI has initially rolled out the AMD AGESA 1.2.0.1 Firmware on the following 500-series motherboards:

If you are running any of these motherboards, make sure to get the latest BIOS from MSI's to unlock the full potential of your AMD Ryzen 500 series desktop processor. We will keep you updated when other manufacturers release their respective BIOS Firmware based on the AMD AGESA 1.2.0.1 version.

Hassan Mujtaba Photo

About the author: A Software Engineer by training and a PC enthusiast by passion, Hassan Mujtaba serves as Wccftech's Senior Editor for hardware section. With years of experience in the industry, he specializes in deep-dive technical analysis of next-generation CPU and GPU architectures, motherboards, and cooling solutions. His work involves not only breaking news on upcoming technologies but also extensive hands-on reviews and benchmarking.

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