ASRock BIOS Upgrade Instruction

»BIOS Update Utility
BIOSfilename.x0.EXE: The Flash Memory Writer utility is included in the WinZip format of BIOS file. It updates the BIOS by uploading a new BIOS file to the programmable flash ROM chip on the motherboard. To determine the BIOS version of your motherboard, press [F2] to enter the BIOS setup utility during bootup, and check the BIOS version from the Main menu. Larger numbers represent a newer BIOS file. This utility works only in DOS mode. (How do I check the BIOS version?)
The Flash Memory Writer utility can not be suitable for all ASRock motherboards. Please use the Flash utility which is included in each BIOS file to update its BIOS. Also ASRock motherboard MUST use ASRock's Flash utility to update BIOS, those uncertified BIOS flashing tools will cause motherboard damage.
»Updating BIOS Procedures
  1. Create a bootable system USB pen drive.
  2. Download an updated ASRock BIOS file (WinZip format with .zip file extension) from the web site, unzip the BIOS file and save all files to the drive you created in step 1.
  3. Boot from the disk you created in step 2.
  4. At the "A:\" prompt, type BIOSfile.exe, then press [Enter]. For example: A:\P55DX_1.60.exe [Enter] then you will see a message "Please wait for BIOS loading ROM".
  5. After 30 seconds, you will see the message "Program ended normally", then you have finished upgrading the BIOS.
  6. After finishing upgrading the BIOS, restart your system and press [F2] to enter the BIOS setup utility during boot up.
  7. In Exit menu, please select "Load Default Settings" and press [Enter] to continue.
  8. Select "Exit Saving Changes" and press [Enter] to exit the BIOS setup utility.
  9. Now, system is booting up with new BIOS.
»How do I check the BIOS version?
1. The BIOS version can be found during system boot up.
2. The BIOS version can be found in BIOS setup utility.

If you encounter problems while updating the new BIOS, DO NOT turn off your system since this corrupt BIOS might cause your system failed to boot up. Just repeat the process, and if the problem still persists, update the original BIOS file. If the Flash Memory Writer utility was not able to successfully update a complete BIOS file, your system may not be able to boot up. If this happens, your system will need service.