”3rd Gen AMD Ryzen Threadripper processors will be using a new socket called sTRX4. While the pin count will be the same as previous-gen Threadripper products at 4094, the mapping of those pins to voltage or data will be different this time ‘round. You cannot install a 3rd Gen Threadripper into an older motherboard, nor an older Threadripper into a new sTRX4 motherboard.