nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqzmd7a929t8nnp6ty4dz27600hxr7psql8zs3tlmmpp8dnk2g48vs7t455a (nprofile…455a) so far, I've been sticking to pre-built business PCs from the Big 3 (Dell, HP, Lenovo), so by "upgrade" I mean "buying used to replace existing units or expand the flock." because they are made in such volume, it's easy to get parts, and they tend to get more BIOS updates etc.
that said, I occasionally take a look at the Chinese pre-builts, in case something in the DDR4 era might be a good fit.
current fleet of 2 servers consist of my personal virtualization box, a HP Elitedesk Mini 805 G8 with an AMD 5750GE (Zen 3), and my webserver, a Dell Optiplex Micro 3060 with an Intel 8500T (Skylake++). I'm planning to add another soon, and will be posting about that shortly.