HP Z400 12GB 3.2GHz Computers - Windows 10 | Like New, Low Price!
CMS 8GB (2X4GB) DDR3 10600 1333MHZ ECC Non Registered DIMM Memory Ram Upgrade Compatible with HP/Compaq® Workstation Z400 Workstation for Server Only - B80 at Amazon.com
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
Used HP Additional 4GB 1866 MHz DDR3 ECC RAM Memory E2Q91AT B&H
4GB EUDIMM Memory for HP Z400 Workstation DDR3L-1600 by Nemix Ram Server Memory - Newegg.com
Arch Memory Replacement for HP A2Z50AA 8GB 240-Pin DDR3 1600 MHz ECC UDIMM RAM for Z400 Z420 Z620 Z820 at Amazon.com