Memory Clock; Memory Ras Feature - NEC Express5800 Series User Manual

Chapter 2 Preparations

1.10.2 Memory clock

The server supports the memory clock speed of DDR3-1333/1600MHz. However, the actual memory clock
speed depends on CPU model and memory configuration. (The all of DIMMs operate at the same clock
speed.)

1.10.3 Memory RAS feature

The server supports the following RAS features. Some restrictions (e.g., DIMM installation location) are
imposed on using the Memory Mirroring or Memory LockStep feature. Refer to Chapter 2 (1.10.7 Using
Memory RAS Feature) for conditions appropriate to your requirements.
• Standard memory feature (x4 SDDC ECC memory)
• Memory Mirroring feature (restrictions imposed on DIMM configuration)
• Memory LockStep feature (x8 SDDC ECC memory) (restrictions imposed on DIMM configuration)
• Memory Sparing feature (restrictions imposed on DIMM configuration)
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Express5800/R120e-1E User's Guide
1. Installing Internal Optional Devices