ASRock today announced the release of BIOS version 3.40 for its AM5 series motherboards. Based on user feedback from the previous BIOS update, we identified some memory compatibility and CPU stability cases. We have completed further optimizations and internal validation. This update focuses on optimizing memory compatibility and system stability. All AM5 motherboard users are advised to download and install it for the best experience.
BIOS 3.40 Update Highlights
Memory P-State set to Disabled by default: improves memory compatibility and stability.
Adjust VDDCR_SOC Voltage parameters: enhances CPU operating stability.
Warranty and Technical Support
ASRock provides full warranty coverage for users who update the BIOS.
For BIOS update instructions, please see check ASRock Instant Flash User guide (AMD) or ASRock Flashback Feature User guide.
If you encounter any issues or need technical assistance during the BIOS update, please contact ASRock Technical Support.
The latest BIOS for ASRock AM5 series motherboards can be found at: https://asrock.com/support/index.asp?cat=BIOS
Please select the corresponding file according to your model.
BIOS for the following models is now available; more AM5 series BIOS will be released progressively:
Model | BIOS Version
ASRock X870 Steel Legend WiFi | 3.40
ASRock X870 Pro RS WiFi | 3.40
ASRock X870 Pro RS | 3.40
ASRock B850 Pro RS WiFi | 3.40
ASRock B850 Pro RS | 3.40
ASRock B850 Pro-A WiFi | 3.40
ASRock B850 Pro-A | 3.40
ASRock B850I Lightning WiFi | 3.40
