Refurbished HP Z400 Workstation Intel® Xeon® Processor ...
Gaming on a Cheap Xeon: The HP Z400 Workstation - Boiling Steam
HP Z400 Gaming PC W3680 24GB RAM RTX 2080 SUPER - YouTube
This is my HP Z400, upgraded with a Xeon X5690. 12gb of ram, 2x500gb SSD, 2x250gb HDD, GTX 960 (the gpu is totally overkill lol). This is my first server! Running pterodactyl