Congrats!!! How are the temps? If anything I'm more interested in undervolting which should be supported in the future releases of BIOS... Now if only my B&H 5900x ever came.... I'm scared to ask them for an update.
It was supposed to be on Dec 21 (as per previuos email), and they told me it could Jan-March few weeks ago via chat. I wish they were sending customer update emails every few weeks.
Temps are a bit cooler than the 3900XT, about 32C at idle and 70C with a moderate load (IBT).
Good luck with getting your 5900X. I was watching Falcodrin on Youtube and he announced a drop on Newegg before it showed up on the bot scanner.
Newegg was combos only but I think that helped getting one, the scalpers don't seem to be looking at combos.
I've heard of a few people getting CPUs from B&H but not many. Looks like mainly Newegg, Amazon, and Best Buy. Also a few from Antonline.