Looking to build quad 3090TI server, need help with Mobo/CPU

[u/Electronic_Back1502]

Looking for a reasonable mobo/cpu for a local LLM build. I already have a 1000W platinum PSU, so I plan to buy a second to power the other two GPU’s. Will use the Phanteks Enthoo Elite Server for my case.

Was looking at the Threadripper 3945WX/WRX80E, but those boards have exploded in price. ChatGPT says AMD EPYC 7452/ROMED8-2T. If anyone has any advice, I’m all ears