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Dell servers released in early 2009 will use the new Intel Core i7 CPUs that support the new DDR3 memory technology. Each CPU has three separate Memory Controller Hubs (MCHs) within the CPU package; memory transactions no longer need to transfer between the CPU and another external device. DDR3 memory offers some benefits over the previous FBD or DDR2 technologies; most notably higher bandwidth and lower power. There are different types of DDR3 memory supported by this platform that will be discussed later in this paper. Finally, the inclusion of three MCHs per CPU brings some new considerations on how to best populate the system based upon the RAS features and speed.
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