ASRock AB350M Pro4 UEFI 4.90 release - no PS/2 Emulation support in BIOS?

VirtualLarry

No Lifer
Aug 25, 2001
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I can't seem to find this item anymore? Has it been removed? It's basically necessary to install Windows 7 on a Ryzen 1000-series CPU. I was trying to test a bootable USB, to find out which version of Windows 7 is on there, and it won't let me get past the first screen, no keyboard / mouse support.

I tried disabling XHCI, but that didn't seem to work, either.

I remember having to enable PS/2 port emulation in the ASRock UEFI, on my Z170 Pro4 ATX boards, but I don't think that I ever tried installing Win7 64-bit onto these AB350M Pro4 boards.