Lenovo ThinkServer RD120 Lenovo ThinkServer Options - Page 7

ThinkServer Memory Heading to Greener pastures Introducing new DDR3 ThinkServer memory for ThinkServer systems with the Intel® Xeon® 5500 Series processors. ThinkServer DDR3 memory is the next generation of SDRAM memory that enables high I/O data transfer rates through increased peak bandwidth (1333MHz) and reduces power consumption over DDR2 technology. Faster data transfer rates mean higher performance and with DDR3 memory this is achieved without straining the system's power needs. Rated Speed Vdd/Vddq Internal Banks Termination Topology Driver Control Thermal Sensor Official JEDEC Specifications DDR2 DDR3 400-800Mbps 800-1600Mbps 1.8V +/- 0.1V 1.5V +/- 0.075V 4 8 Limited All DQ signals Conventional T Fly-by OCD Calibration Self Calibration with ZQ No Yes (Optional) ThinkServer DDR3 Memory ThinkServer Memory feature Advanced ECC technology • Advanced ECC works similar to RAID for disk subsystems. If a memory failure occurs, the data is immediately recovered by recalculating the data from the checksum information • This allows the system to mask not only the single bit errors (standard ECC) but also 2, 3 and 4-bit errors (Advanced ECC has 99.94% reliability) • DDR3 also uses more internal banks to reduce access latency and increases performance • 2GB and 4GB DDR3 ThinkServer Memory support Advanced ECC and Memory Mirroring. These features are critical in having the right virtualization solution • Dual processor ThinkServer systems that support Intel's 5500 Series processors are designed with dedicated memory banks for each processor. When adding memory to these systems, each processor will gain immediate performance gain without having to share resources. Integrated technology, seamless performance Since Intel's 5500 series processors are based off of Nehalem technology, there are some unique benefits provided for DDR3 to take advantage of: • Integrated Memory controller - Increases the memory bandwidth without compromising performance • Intel® QuickPath Interconnect - Point-to-point high-speed links between the processor and distributed shared memory gives parallel processing a new level of performance. ThinkServer DDR2 Fully-buffered Memory 5