- Even though the main chassis fan is now fixed in AHCI mode with recent BIOS versions, there is still an annoying PSU fan that's tiny and high frequency. You cannot control it and the PSU seems to be custom-built.
- The BIOS does not support ACPI S3 (suspend-to-RAM) at all. Apparently it being a server BIOS they chose to not include the code paths in the BIOS needed to properly turn off devices and turn them back on. This means that it's not possible to simply suspend it and have it woken up when your media center boots.
- In contrast to the older AMD-based MicroServers the Gen8 comes with iLO, which will consume quite a few watts just for being present even if you don't use it. I read figures of about ten watts. It also cannot be turned off, as it does system management like fan control.
- The HDD cages are not vibration proof or decoupled.
If you try to boot FreeBSD with its zfsloader you will likely need to apply a workaround patch, because the BIOS seems to do something odd. Linux works as expected.