I found it. An mitx sized AM3+ motherboard. : r/Amd
Am3+ For Amd 970m Micro-atx M5a97m Motherboard For Asus M5a97 Evo_dp/cm1855/dp_mb Sata3 Usb3.0 Sata3 Desktop Motherboard - Motherboards - AliExpress
Used - Like New: ASUS M5A78L-M PLUS/USB3 AM3+ Micro ATX Motherboards - AMD - Newegg.com
Asus Readies Mini-ITX Board for AMD Users.
ASUS M4A88T-I Deluxe AM3 Mini ITX AMD Motherboard - Newegg.com
Original Used Asus M4A88T I Deluxe Desktop Motherboard 880G Socket AM3 DDR3 USB2.0 Mini ITX 100% Fully Test|desktop motherboard|am3 ddr3socket am3 - AliExpress
Asus M4A88T-I Deluxe Mini ITX AM3 Motherboard (M4A88T-I Deluxe) - PCPartPicker
MicroATX Socket AM3 Computer Motherboards for sale | eBay