My first real home server, a Dell PowerEdge T310. A church offered it to me and I couldn't pass it up. I'll be running Ubuntu server and using it as a Plex
Dell PowerEdge T310 Server - Customize Your Own
Dell PowerEdge T310 Workstation Server Xeon 2.4GHz 16GB 1TB Windows No O/S and WIFI
Dell PowerEdge T310 Server Memory RAM for Upgrades & Installation
OFFTEK 2GB Replacement Memory RAM Upgrade for Dell PowerEdge T310 (DDR3-10600 - Reg) Server Memory/Workstation Memory at Amazon.com
Solved: PowerEdge T310 RAM upgrade - Dell Community
12Gb (3X4Gb) Dimm Memory RAM Compatible with Dell Poweredge T310 Ecc Reg Compatible with Server Only By CMS B81 - Computer Memory Solutions
CMS 16GB (2X8GB) DDR3 10600 1333MHZ ECC Registered Quad Rank DIMM Memory Ram Upgrade Compatible with Dell® Poweredge T310 EccR Quad for Server Only - C139 at Amazon.com