Alienware MJ-12 X2, User Manual

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1.2 Motherboard features
Intel ® Xeon Dual processor platform
The Intel ® Xeon processors are built on 90 nm manufacturing process. These
processors support new technological advances such as EMT64, Enhanced Intel ®
SpeedStep Technology and Hyper-Threading technology. The Alienware X2
motherboard is designed to house one or two of these processors.
The Intel ® SpeedStep technology along with the DMS (Demand Base Switching) will
allow the processor to dynamically adjust the processor’s power demand according to
how much work it has to do.
The Hyper-Threading improves the performance of multithreaded applications providing
a higher processing throughput.
The Intel ® EMT 64 instruction enables the usage of 64-bit operating systems, allowing
the system to detect larger amounts of memory.
PCI Express graphics
This motherboard features the next generation graphics interface which supports the
latest PCI Express video cards with a 4.0 GB bandwidth. The Alienware X2 motherboard
offers two SLI-capable PCI Express slots.
Dual DDR2 400 memory channels
DDR2 memory provides a fast data transfer rate, acquiring a maximum memory
bandwidth of 3.2 GB per second. The power consumption on DDR2 technology
decreases significantly since it uses a 1.8V core voltage (versus the 2.5V on DDR).
Serial ATA
Support for SATA hard disk drives permits using advances such as hot swappable
drives and native command queueing technology, plus easier to handle cabling and
connectors to facilitate removal and installation of more drives.
Intel ® audio
Integrated Audio Controller supports 5.1 channel configuration to provide excellent
sound quality output either through the built in jacks or the SPDIF output.
USB 2.0
High speed data transfer is enabled through the USB 2.0 ports on this motherboard,
which provide a faster 480 Mbps transfer rate than the previous USB 1.1 (12 Mbps).
USB 2.0 ports are backward compatible with USB 1.1.
IEEE 1394a
This motherboard enables a connection to high speed data transfer devices through the
1394a connection. Even though data range goes up to 400 Mbps, 1394a provides a
faster connection than USB due to the peer to peer architecture which guarantees more
reliable and sustained throughput rate.
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