Reference Guide

Dimensions
Height front — 343.00 mm (13.50 inches)
back — 318.50 mm (12.54 inches)
Width 95.00 mm (3.74 inches)
Depth 318.00 mm (12.52 inches)
Minimum Weight 5.49 kgs (12.10 lbs)
NOTE: The weight of your computer may vary
depending on the configuration.
System information
Model Alienware X51
Processor • Intel Core i7 Quad-Core
• Intel Core i5 Quad-Core
• Intel Core i3 Dual-Core
L2 cache 256 KB per core
L3 cache • Intel Core i7 — 8 MB
• Intel Core i5 — 6 MB
• Intel Core i3 — 3 MB
System chipset Intel H61 Express chipset
DMI speed 20 Gbps
Processor data width 64 bits
Memory
Connectors two internally-accessible DDR3 DIMM sockets
Capacities 2 GB and 4 GB
Memory type DDR3 SDRAM (Non-ECC)
Memory speed 1333 MHz
Memory configurations
supported
4 GB, 6 GB, and 8 GB
Minimum 2 GB
Maximum 8 GB