Mouse/Keyboard don't work past bios

Kacha

Honorable
Dec 22, 2013
3
0
10,510
Old motherboard fried, I just finished putting together a mostly new system - new mobo, cpu, gpu, memory. Old - SSD with windows 7, 1TB storage drive, PSU, case. I forgot/didn't remember that I should do a fresh windows install with a new motherboard (hadn't built a computer in 4-5 years lol). Sooo I just booted everything up once I connected stuff, it actually booted fine into the existing Windows install, EXCEPT my USB mouse and keyboard will not work as soon as I leave Bios. As in, lights go out, nobody home. I've googled this pretty thoroughly already and tried everything I could find, including: try different USB ports, do not use USB 3.0 ports (I'm not), I do not have a PS/2 mouse to try, try different mouse/keyboard, make sure current mouse/keyboard work on different system, unplug all power wait a bit then reboot (several times), some weird num lock trick that made no sense, holding power button down while flipping on the PSU on switch, boot in safe mode (still no mouse/keyboard function), boot to windows install/repair USB (gets to install screen fine, no keyboard/mouse) (I even gave the install screen nearly 45min in case it was epically slow to find drivers), resetting Bios to default settings..... I'm about out of things to try. Help?

Mobo - ASRock AB350M-HDV AM4
CPU - Ryzen 3 1200
Memory - 4gbx2 DDR4 Ballistix
GPU - Zotac GTX 1050 ti
PSU - 500w Antec
SSD - Kingston something or other
HD - WD 1TB
 

Kacha

Honorable
Dec 22, 2013
3
0
10,510
In case someone ends up reading this looking for answers - turns out I missed one key detail.... the new AM4 motherboards do not play well with Windows 7! Came across this article and went Ahh-Haa!!

https://www.asrock.com/microsite/Win7Install/index.html

The workaround didn't end up working afterall, so I just got Windows 10 instead and new computer is working splendidly =D