I decided (5 years later) to install Windows 10 1903 on this motherboard with the A10-8850B APU, 32 GB or RAM. I was very impressed at the current performance, but need to share some standing issues:
1. Updating from a beta BIOS to the most current: Using the BIOS EZ Flash nor using a USB device and taking a tech's advice of using MS-DOS (as the website recommends) did not work. Absolutely DID NOT WORK! I want to reemphasized that since IT is my thing....and has been for more than 25 years. I felt as if this is beyond a major failure and whomever is even running quality assurance should review this.
Solution: I had to download the AMI Aptio Version 4 tool and the UEFItool to not only make (modify) the correct size of the bios files, but force flash to the most current. You cannot update from a beta bios to a qualified bios. The website's listed bios files sizes are too large to install on the motherboard nor the original bios files were missing. Do not ever use any of ASRock's beta bios files and if you do, then you must re-read this solution again.
2. Booting into UEFI when disabling CSM: Pressing F2 or Delete fails when the Compatibility Support Module is disabled and you reboot to try and access the BIOS menu
Partial Solution: In Windows 10, you cannot use the normal shutdown and reboot options, but must Right-Click on the Start Menu and select the Shut Down or Sign Out menu. Click Shutdown, which is the full shutdown of Windows 10. Power on the machine, then press Delete or F2. Sometimes the cursor will show, sometimes you will hear the rocket to get into the UEFI BIOS. If not, then you must clear CMOS Ram.
This motherboard is fully compliant with the current AMD Adrenaline software, but I also recommend using the AM4 Chipset drivers instead of the websites outdated Crimson drivers.
1. Updating from a beta BIOS to the most current: Using the BIOS EZ Flash nor using a USB device and taking a tech's advice of using MS-DOS (as the website recommends) did not work. Absolutely DID NOT WORK! I want to reemphasized that since IT is my thing....and has been for more than 25 years. I felt as if this is beyond a major failure and whomever is even running quality assurance should review this.
Solution: I had to download the AMI Aptio Version 4 tool and the UEFItool to not only make (modify) the correct size of the bios files, but force flash to the most current. You cannot update from a beta bios to a qualified bios. The website's listed bios files sizes are too large to install on the motherboard nor the original bios files were missing. Do not ever use any of ASRock's beta bios files and if you do, then you must re-read this solution again.
2. Booting into UEFI when disabling CSM: Pressing F2 or Delete fails when the Compatibility Support Module is disabled and you reboot to try and access the BIOS menu
Partial Solution: In Windows 10, you cannot use the normal shutdown and reboot options, but must Right-Click on the Start Menu and select the Shut Down or Sign Out menu. Click Shutdown, which is the full shutdown of Windows 10. Power on the machine, then press Delete or F2. Sometimes the cursor will show, sometimes you will hear the rocket to get into the UEFI BIOS. If not, then you must clear CMOS Ram.
This motherboard is fully compliant with the current AMD Adrenaline software, but I also recommend using the AM4 Chipset drivers instead of the websites outdated Crimson drivers.