HP ProLiant SL4540 HP ProLiant SL4540 Gen8 Server Node User Guide - Page 32

12. Install the heatsink. 13. Install the access panel (on page 21). 14. Install the node into the chassis ("Installing a node into the chassis" on page 25). 15. Power up the node ("Powering up the system" on page 19). Memory options The node supports single- and dual-rank PC3L-10600 (DDR-1333) RDIMMs operating at up to 1333 MT/s. Speed, voltage, and capacity DIMM type RDIMM RDIMM RDIMM DIMM rank Single-rank Dual-rank Dual-rank DIMM capacity 4 GB 8 GB 16 GB Native speed (MT/s) 1333 1333 1333 Voltage LV LV LV HP SmartMemory HP SmartMemory, introduced for Gen8 servers, authenticates and unlocks certain features available only on HP Qualified memory and verifies whether installed memory has passed HP qualification and test processes. Qualified memory is performance-tuned for HP ProLiant and BladeSystem servers and provides future enhanced support through HP Active Health and manageability software. Certain performance features are unique with HP SmartMemory. HP SmartMemory 1.35V DDR3-1333 Registered memory is engineered to achieve the same performance level as 1.5V memory. For example, the industry supports DDR3-1333 RDIMM at 1.5V, compared to 1.8V for DDR-2 DIMMs. DDR3 Low Voltage DIMMs operate at 1.35V. For HP ProLiant Gen8 servers, the majority of new DDR3 DIMMs are Low Voltage as HP SmartMemory enables the same performance as 1.5V. This equates to up to 20% less power at the DIMM level with no performance penalty. In addition, the industry supports UDIMM at 2 DIMMs per channel at 1066 MT/s. HP SmartMemory supports 2 DIMMs per channel at 1333 MT/s, or 25% greater bandwidth. Hardware options installation 32