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6h ago

ASRock Releases BIOS 3.40 for AM5 800-Series to Improve CPU Stability After Ryzen Burnout Cases

AMD urges firmware updates following findings that non‑compliant BIOS settings contributed to recent processor failures.

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An image about Worried about AMD Ryzen X3D CPU burnout? ASRock has a new BIOS that you'll want to grab

Overview

  • BIOS version 3.40 is now posted for B850 and X870 motherboards with release notes citing improved memory compatibility, greater system stability, and enhanced CPU operating stability.
  • User reports indicate the update sets SoC Load-Line Calibration to Level 3 and fixes VDDCR_SOC at 1.2V, a change intended to limit SoC voltage overshoot.
  • The new firmware follows months of ASRock updates that previously adjusted PBO and other limits, which reduced but did not eliminate reports of Ryzen 9000 and X3D failures.
  • AMD has stated that many recent CPU deaths stemmed from out‑of‑spec motherboard firmware and has advised users to move to the latest BIOS versions.
  • Uniko’s Hardware recommends immediate installation for Ryzen 9000 X3D systems, while some journalists advise a brief wait to watch for unforeseen side effects.