TYAN S4980G2NR Thunder n3600QE Quad 1207(F) NVIDIA nForce Professional 3600 Extended ATX Four AMD Opteron (Rev.F) 8000 series Server Motherboard - Newegg.com
Motherboard G34 Socket X89 Ddr3 32g Memory Sata Ii Usb 3.0 For G34 Computer Mainboard Amd Opteron 6386 Se 6176 6128 6230 He - Motherboards - AliExpress
TYAN Launches New Opteron Supportive Server Platform, Upgrades Current Platforms | TechPowerUp
X89L G34 Chipset Motherboard Kit with AMD Opteron 6276 16-Core Processor and 2*16GB=32GB DDR3 1600mhz ECC REG Memory USB 3.0 Set - AliExpress
Just recreated the ASUS Opteron Socket G34-based KGMH-D16/QDR blade server motherboard (under 1.5 hours 3 days ago), and B650 Steel Legend WiFi (took me three hours) in Minecraft 1.12.2 with MCEdit 0.1.7.1. :
Amazon.com: Supermicro A+ H8SGL AMD Motherboard ATX Form Factor Single Opteron 6000 series 1944-pin Socket G34 up to 256GB DDR3 RAMS 2 Dual-port GbE Lan 6 SATA2 ports via SP5100 RAID 0,1,10
X89L G34 Chipset Motherboard Kit with AMD Opteron 6276 16-Core Processor and 2*16GB=32GB and CPU FAN DDR3 1600mhz ECC REG Memory