RadiSys ATCA-5400 RTM Specifikace stáhnout pdf (Strana 18)

Installing Memory Modules

Mismatched DIMM combinations and SEL error events

Amemoryinitializationerroroccursifmemorychannelsarenotconsistentlypopulated

fromthelowest‐numberedslottothehighest‐numberedslot.UsingChannelAasan

exampleinFigure 2onpage 17,slotA0shouldbepopulatedfirst,thenA1andthenA2.

TheerroroccursifChannelAonlyhasA0populatedandChannelBonlyhasB1populated.

WhentheCPMbootsitperformsmemoryinitializationandvalidatestheDIMMslot

population.Ifamismatched(incorrect)combinationofDIMMsisdetectedtheBIOSlogsa

SELevent.SeeTable 23onpage 78fordetailsontheMemoryErrorssensor.

Mismatchedmemoryconfigurationsmustbecorrectedbyfollowingthe

recommendationsinSupportedDIMMcombinationsonpage 17.

Installing DIMMs

InstallingDIMMsconsistsofremovingtheDIMMcover,installingtheDIMMmemory

cards,replacingtheDIMMcover,andre‐installingtheCPMintheshelf.Thefollowing

sectionsdetailtheseprocedures.

WARNING! Observe appropriate ESD precautions when performing the procedures in this

chapter (see

Electrostatic discharge

on page 8).

Removing the DIMM cover

1. PlacetheCPMonaflat,static‐freesurface.

2. RemovethetwoscrewsholdingtheDIMMcoverinplace(seeFigure 3onpage 18).

3. LiftofftheDIMMcover.

Figure 3. DIMM cover

Screws

DIMM

cover

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RadiSys ATCA-5400 RTM Specifikace Strana 18