Specs Alienware x51 R2 i5-4440 Desktop Intel® Core™ i5 16 GB DDR3-SDRAM 1000 GB HDD Windows 7 Home Premium Mini PC Black PCs/Workstations (ALWX51D-2628)
Alienware X51 – Specs and upgrade options
X51-R1, Clear CMOS jumper for no post situations - Dell Community
ALIENWARE X51 R2 OWNER'S MANUAL Pdf Download | ManualsLib
Dell Alienware x51 r2 Specifications User Manual Reference Guide En us
ALIENWARE X51 SERVICE MANUAL Pdf Download | ManualsLib
Alienware X51 motherboard specs : r/Alienware
Best Buy: Alienware X51 R2 Desktop 8GB Memory 1TB Hard Drive AX51R2-9302BK