Specifications

Hardware Description

Integrated Memory Controller (IMC)

TheintegratedmemorycontrollerincorporatedintoeachE5‐2400familyprocessorsupports

threechannelsofDDR3,eachchannelwith64databitsand8ECCbits.TheCPMsupportsup

tosixregisteredVLPRDIMMspersocket(twoperchannel)forasystemtotaloftwelve

RDIMMs.Table 6liststhesupportedRDIMMmemorytypesoftheCPMandprovidesthe

requiredspecificationsforthemodules.

Theintegratedmemorycontrollersupportsuptofourmemorymodes,buttheCPMusesonly

theIndependentmode(highestperformance)inwhichRDIMMscanbeplacedinanyofthe

threechannelsandtherearenomatching

requirementsforrankorDIMMspeedbetween

channels.Aburst‐lengthof8isused,andthememorycontrollerisconfiguredtointerleave

thememorymapacrossthethreechannels.

TheIMCprovidesthefollowingtoolstosupportmemoryreliabilityandpeakoperation:

•SDDC(SingleDeviceDataCorrection)algorithmthatcandetectandcorrectanyerror

withinax4deviceinindependentmode.

•DRAMthermalmanagementeitherbyDRAMthrottlingorbyperforminga2Xrefreshto

thememorychannels.

Table 6. Supported Memory Types

Mem Rank x Data Width Operating Voltage DIMMs per Channel Memory per DIMM Speed (MT/s)

Registered DIMM (RDIMM) with ECC

Single rank x 8 bits 1.5 v One or Two 1, 2, 4 GB 1066/1333 MHz

Single rank x 8 bits LV - 1.35 v Two 1, 2, 4 GB 1066 MHz

Dual rank x 8 bits 1.5 v One or Two 2, 4, 8 GB 1066/1333 MHz

Dual rank x 8 bits LV - 1.35 v Two 2, 4, 8 GB 1066 MHz

Quad rank x 8 bits 1.5 v or LV - 1.35 v One or Two 4, 8, 16 GB 800 MHz

Single rank x 4 bits 1.5 v One or Two 2, 4, 8 GB 1066/1333 MHz

Single rank x 4 bits LV - 1.35 v Two 2, 4, 8 GB 1066 MHz

Dual rank x 4 bits 1.5 v One or Two 4, 8, 16 GB 1066/1333 MHz

Dual rank x 4 bits LV - 1.35 v Two 4, 8, 16 GB 1066 MHz

Quad rank x 4 bits 1.5 v or 1.35 v One or Two 8, 16, 32 GB 800 MHz

Load Reduced DIMM (LRDIMM) with ECC

Quad rank x 8 bits LV - 1.35 v One 8, 16 GB 1066 MHz

Quad rank x 8 bits LV - 1.35 v Two 8, 16 GB 800 MHz

Quad rank x 8 bits 1.5 v One 8, 16 GB 1066/1333 MHz

Quad rank x 8 bits 1.5 v Two 8, 16 GB 1066 MHz

Quad rank x 4 bits LV - 1.35 v One 16, 32 GB 1066 MHz

Quad rank x 4 bits LV - 1.35 v Two 16, 32 GB 800 MHz

Quad rank x 4 bits 1.5 v One 16, 32 GB 1066/1333 MHz

Quad rank x 4 bits 1.5 v Two 16, 32 GB 1066 MHz