To be clear, I bought a Quanta S210-X12RS - the 1u version.
Arrived yesterday, powers on, I flashed BMC to reset main password.
I have the fan problems. I installed Proxmox for testing but the fans don't go down. (I am trying with esxi also)
Whoever managed to get the fans on lower speeds, what os did you use? I do not like the idea to swap the fans.
Also, my server has a kind of dual fan per rail. so 6x~6000rpm+6x~8000rpm. this is insane
Mini sas ports - looks like 2 out of 3 are working. I might be good here. L.E. I got a response from Quanta - very nice and very fast - informing me that for my motherboard, sata ports 0-3, sata6-1 and sata6-1, and sas 0 to 3 are working, but sas4-7 are not usable. So a total of 10 ports available for drives. Nice!
I did not test yet the gpu on the pcie. L.E. Got the quadro p400 into the slot, passed it through to my vm, everything checks ok!
For posterity:
Quanta s210-x12rs BMC is the same as quanta s210-x22rq.