Hello,
Atom-15 has been working great for me in terms of the text display during POST as well as inside the bios config utility. When Windows 10 shows the Windows boot logo, I lose sync and the screen is a distorted mess. Then when windows loads, the CRT-Emu drivers make everything good again. I'm using the MSI Radeon 6450 hooked to an Electrohome G07.
I just wanted to confirm that Atom-15 will completely suppress any 31khz and up modes, such that even though my monitor is having trouble syncing during the Windows boot logo, its not actually going to be doing any harm. (Not sure what Vesa mode Windows 10 uses for the boot logo).
Thank you!