Specifications

2
Hardware Description
28
DIMM memory
ThismemoryisdirectlyaddressedbytheinternalmemorycontrollerofeachE5‐2400family
processor.DuetotheboardheightlimitationsposedbytheATCAPICMGspecifications,only
VeryLowProfile(VLP)DualIn‐lineMemoryModule(DIMM)modulesaresupportedwiththe
CPM.TheRegisteredDIMM(RDIMM)memoryusedontheCPMisbufferedbyintegral
registersandhasbuilt‐inErrorCorrectingCode(ECC)bitstosupportmorereliableoperation.
AspartoftheinstallationprocessfortheCPM,uptotwelveRDIMMmodules(sixper
processor,from1GBto16GBeach)mustbeinstalledintheCPMDIMMsockets.Referto
Addingorreplacingmemorymodulesonpage 73fortheinstallationprocedures.
Non-volatile on-board memory
TheCPMnon‐volatilememoryismainlycomprisedofthefollowingelements:
•Thetwo64‐MbitFlashBIOSbootandredundantbootdevices.
•The64‐MbitMEFlashholdingtheredundantMEfirmware.
•IPMInon‐volatilememorystoresIPMCprivatedataandboardFRUinformation.
•TheoptionaleUSBNANDFlashmemorymodules
areavailableforuserapplicationsand
data.
External memory options
ThefollowingexternalmemoryoptionsareavailablefortheCPM:
• EmbeddedNANDFlashmodules.OneortwoeUSBNANDFlashmodules.
•1.8”microSolidStateDisk(SSD)drives.OneortwoμSATASSDmodules.Thisoption
requirestheRadisysDualSSD(DSSD)MXMmoduleformountingtheSSDmodules.
•RTM‐installedharddiskdrives(HDDs).NumberandcapacitydependentontheRTM.