MSI Mag B550 Tomahawk equipped with the newest BIOS on a Ryzen 7 5800X RD processor.
MSI Mag B550 Tomahawk equipped with the newest BIOS on a Ryzen 7 5800X RD processor.
I consider this a win. Just secure the voltage levels and keep the multiplier disabled, letting anyone use an EVC2 to run higher voltages while others stay at 1.35V. Multiplier tweaks are still possible without needing more BCLK, and normal overclocking is fine.
You're facing some unexpected issues with your B550 mortar. It seems the new BIOS might not be compatible, which could explain the crashes. Make sure to double-check the compatibility before proceeding.
If the board doesn't support rollback, you might use a BIOS flashback or work with the SPI header via a programmer such as the CH341A. The issue is about why the multiplier is locked instead of just setting voltage to its maximum 1.35V. As for operating systems, rolling back your BIOS to an earlier version you were using could resolve the problem.
Sure, I understand—it can get quite complex sometimes. I was just highlighting that updating without a real need carries risks. Yeah, they likely wanted to stay safe, but for me, overclocking makes more sense since undervolting often delivers better outcomes and uses less power. What bothers me is the lack of PBO settings in BIOS; it's interesting how the original BIOS included PBO, yet it didn't work on my 5800x3D.