Dell PowerEdge M820 Technical Manual

Also see for PowerEdge M820 Systems: Manual Command reference guide Owner's manual Information update Release notes

Contents

Dell PowerEdge M820 Technical Manual Manual pdf 17 page image

17 PowerEdge M820 Technical Guide5 MemoryMore memory options are available than ever before with the Dell PowerEdge M820 — greatercapacities, higher frequencies and more flexibility. The M820 supports up to 1.5TB of memoryand speeds up to 1600MT/s, providing high performance in a variety of applications. High memorydensity means there is no compromise when it comes to virtualization.Increase your uptime and reduce data loss due to Dell’s focus on reliability, availability andserviceability (RAS) features. RAS aids in the rapid and accurate diagnosis of faults that require service,increasing your memory reliability. System uptime is reinforced with RAS features like memorymirroring, sparing and many others.In addition to supporting existing RDIMM technologies, the M820 supports load reduced DIMMs(LRDIMMs), which use a buffer to reduce memory loading and allow for greater density, allowing forthe maximum platform memory capacity.Supported memoryTable 6 lists the memory technologies supported by the M820.Table 6. Memory technologies supportedFeature RDIMM LRDIMMRegister Yes YesBuffer No YesFrequencies* 800, 1066, 1333 or1600MT/s 1066 or 1333MT/sRanks supported 1, 2 or 4 4Capacity per DIMM 4, 8, 16 or 32GB 32GBMaximum DIMMs per channel 3 3DRAM technology x4 or x8 x4Temperature sensor Yes YesError Correction Code (ECC) Yes YesSingle Device Disable Code (SDDC) Yes YesAddress parity Yes Yes*Although the M820 supports DIMM speeds of 800MT/s and 1066MT/s, you can only purchase this system withDIMM speeds of 1333MT/s and 1600MT/s on Dell.com/PowerEdge.