If you are going to be looking for an AMD socket TR4 motherboard for AMD Ryzen Threadripper processors next month you'll want to keep the ASUS Republic of Gamers (ROG) Zenith Extreme X399 on the short list. This board appears to be the flagship model for ASUS ROG series and is ready for Threadrippers 16 cores and 32 threads that are based on the new Zen microarchitecture. The upcoming ROG Zenith Extreme was first shown at Computex 2017, but ASUS has redesigned the power solution since then. Originally the Rampage VI Extreme and Zenith Extreme X399 boards shared the same power solution as the Rampage VI Extreme based on Intel's X299 platform for Skylake-X, but it appears to have been a VRM overheating issue on some of those X299 boards. ASUS made some changes and added active cooling to the high-current 8-phase VRM design to keep temperatures at bay.