The boot time is long, the BMS programs are awkward (but maybe I'm not familiar with server-style BMS programs), and I can't get the DDR4 clock as high as it should be for my DRAM. There's a chance my UDIMM doesn't support the speed I want to run, but it hasn't been a big enough deal for me to look into.

Yea, SuperMicro are not boot time optimized boards at all. In the style of systems I've always built them in we were talking systems that might only be rebooted once or twice a year.

Though with CPU/firmware exploits commonly getting patched it does seem like there are a lot of reasons to reboot server style systems these days.

Ah ok, I reboot infrequently so it's not really an issue.

How much total memory are we talking and what speed were you able to run it at?

I have 4x16GB of 3200MT/s DDR4, but can't get the clock above 1055 MHz (which would be 2110MT/s). There's a chance that the cheaper/consumer grade G.skill memory isn't compatible with those speeds, but it hasn't been a blocker lately.

I built the machine to be more basic for now but be able to upgrade over time into a powerful computer to run electromagnetic simulations.