Dell PowerEdge R910 Information Update - Intel Xeon 5600 Series Processors - Page 2

Low Voltage Memory Modules (DDR3L DIMMs) Intel Xeon 5600 series processors support DDR3L DIMMs enabling a lower operating voltage (1.35 V) that ensures memory power savings up to 20% per DIMM. DDR3L memory is backward-compatible to Intel Xeon 5500 series and operates at standard voltage (1.5 V) without any limitations. Operating the system memory at a lower voltage may cause restrictions to additional frequency and memory population capabilities. For example, populating three memory modules per channel is not supported at 1.35 V. Systems with 1.35 V DDR3L memory operates the memory modules at 1.5 V if any of the following conditions exist: • Intel Xeon 5500 series processors • Two 1333 MHz DIMMs per channel • A combination of both standard and low voltage memory modules For information on the memory configuration guidelines, see your system's Hardware Owner's Manual at support.dell.com/manuals. NOTE: BIOS setup options allow the user to control frequency and voltage configuration within allowable limits. New BIOS Setup Options Integrated Devices Screen Option SR-IOV-Global Enable (Disabled default) Description Enables/disables BIOS configuration of Single Root I/O Virtualization (SR-IOV) devices. NOTE: Applies to PowerEdge R410, R510, R610, R710, R910, T410, T610, and T710 systems only.