14 DAY TRIAL // MSI has made available a new BIOS package targeted at its B85M-P33 motherboard, namely version 4.5, which improves the memory compatibility and updates the CPU micro code.
However, if your system works fine and no problems are encountered, applying a newer BIOS version isn’t recommended. The BIOS must be updated only when the version you are about to install fixes a specific problem that bothered you in the past.
Therefore, if you consider installing version 4.5, then get and extract the downloadable archive, copy the created folder onto a formatted USB device (make sure it’s bootable), and boot the system from the USB stick.
At the DOS prompt make sure you execute the “C:\7817v45>E7817IMS.450” sequence, reboot the system when needed, and make sure you check the installed version to ensure that the process has been successful. Moreover, while in BIOS setup, you might also load the default settings.
That being said, download BIOS 4.5 for MSI B85M-P33, take into account all the mentioned aspects, and only if you know what you are doing, apply the new version to the motherboard. In addition to that, you can also download MSI B85M-P33 drivers to ensure that you have an up to date device.