Hook up HDMI + keyboard, reboot. Press `F2` or `Del` to enter BIOS, change boot device to your USB install stick.
Install like normal (dont forget to create a bios partition first on your drives, dont put boot on a lvm partition, that won’t boot). Install grub to MBR on one of your drives and reboot.
Disable “Smart FAN” in BIOS to be able to manually control the fan, otherwise you’ll be met by `/usr/sbin/pwmconfig: There are no pwm-capable sensor modules installed` and `Read-only file system` when you try to control it manually by echo’ing to `/sys/class/hwmon/hwmon1/device/pwm1`