To get better BIOS Images in MSI Boards , the steps are the Same as in Gigabyte Boards.
You need a USB Flash disk formatted in FAT32 to capture and Save the BIOS screens you are viewing AUTOMATICALLY on that FAT32 Disk space.
Your 16GB macOS USB Installer Flash disk has FAT32 formatting in its EFI Partition.
The EFI partition in the macOS USB Installer is ~ 200MB
Some Space is taken up by the EFI Folder containing CLOVER FileTree.
There is PLENTY of Free Blank Space in the EFI Partition to save all the Screen shots you can take from the BIOS
Enter BIOS setup with Hotkey on reboot, with FAT32 Formatted USB Flash drive in the USB port
View each screen
Press F12 key to get the FAT32 Formatted USB Disk to get ready
A few seconds later, you will get a Screen Prompt "OK"
Press ENTER key to Capture and Save that screen
Move on to Next Screen and repeat the same F-12 >ENTER routine until you Capture and Save all the screens you have viewed and wanted to save
The Image format is BMP
Our Forum accepts JPG and PNG
You have to convert the image captured to PNG/JPG
The Images Captured have no real Name; only Numbers that are not useful
You have to take the macOS USB Installer Disk to a Mac /hack and mount its EFI as the EFI Partition of your macOS USB Disk is hidden ; if you use a regular USB Disk formatted in FAT32, you can view the images without having to mount the EFI
To 'mount' the hidden EFI Partition to view saved images use bulleted steps-> #4
Open the image in Preview and then click File>Export..
In the next screen type in the File Name: to a unique name instead of default number; and change Format from BMP to PNG or JPG
Save the Edited photo on Desktop (or Folder of your choice) .