Alienware X51 R2 Desktop Gaming System Review - Legit Reviews
Amazon.com: WWWFZS MotherboardsKM92T, Fit for DELL Alienware X51 R1 System Motherboard 1717 cm DDR3 H61 Lga 1155 Motherboard Original Desktop Mini Itx 0KM92T KM92Motherboard Processor Motherboard chip : Electronics
Solved: Upgrading an Alienware X51 R2 GPU, Case and PSU - Dell Community
Alienware X51 R2 review | Expert Reviews
Alienware X51 – Specs and upgrade options
Alienware X51 motherboard specs : r/Alienware
For Dell Alienware X51 R2 Motherboard MS-7796 PGRP5 LGA1150 Perfect Test Good Quality - Newegg.com