If somebody has those uniqe server MB, yes you are %100 right.
However I am talking about old generation MB which has maximum 4- PCIE slots.
and with power supplies of 500w.
If you can find 8-10 PCIE MB that is %100 fine.
What I mean is number of rigs is important as more rigs takes more time usually. Also CPU and system consumes energy therefore minimum 8 GPU is better.
Your reading comprehension must be slow. The z400's came with 4 PCIE slots and like a 450W PSU. He's been using like 40 of them perfectly fine. In fact, he's even got more than 4 cards running in them thanks to PCIE 4 in 1 splitters.
The system energy is minimal and all CPUs are mining as well. Another thing to point out is that when an 8 GPU rig goes down, you have much more hashpower out of the game.
Also, with HIVEOS, system updates are effortless. Literally, even for a ton of boxes.
And honestly, Sundownz should be running a proxy because then literally all your boxes point at one, and then you make changes on the ONE, and EVERYTHING points to whatever you changed it to...
Please, this thread now has multiple combined years of testing these theories with the various people doing it.