RadiSys ATCA-5400 RTM Dokumentacja Pobierz pdf (Strona 20)

Installing Memory Modules

Testing installed memory

AftertheDIMMsareinstalledandtheCPMisinstalledintheshelf,verifythatthe

expectedmemoryisavailableandthememoryisvalidbyperformingthefollowingtests.

Verifying DIMM operation

VerifythattheBIOSdetectsandenablesallinstalledmemory.Thetotalmemorysize

detectedandenabledisreportedinthemainpageoftheBIOSsetupmenu.

IfthetotalamountofdetectedmemoryislessthanthetotalphysicalDIMMmemorythat

isinstalled,checkeachDIMMforthese

conditions:

•TheDIMMisincorrectlyinstalled

•TheDIMMisfaulty

•TheDIMMinstallationviolatesthepopulationrule.SeeMismatchedDIMM

combinationsandSELerroreventsonpage 18fordetailsaboutpopulationrules.

ADIMMthatisnotdetectedorenabledproperlycanbeidentifiedthroughtheBIOSsetup

menu(

Chipset>NorthBridge>DIMMinfo).

Running a memory test

AftertheDIMMsareinstalled,amemorytestcanberunfromtheEFIshellbyex ecuting

thememtestcommand.Thetestscansallmemoryregionsandreportsanyerrors.

Followthesesteps:

1. AccesstheEFIshellfromtheBIOSsetuputilitybymakingitthefirstbootdevice,orby

choosingEFIshellafterselectingtheOverridebootsourcefornextbootsettinginthe

Save&Exitmenu.

2. Startthememorytestbyenteringmemtestwithoutanycommandarguments.The

memorytestloopscontinuouslythroughavailablememoryregionsuntiltheESCkeyis

pressed.

Helpisavailablefor

memtestbyenteringmemtest/?.

Note:DisableECCerrorcorrectionintheBIOSsetupbeforerunningthememorytes t.This

ensuresmaximumtestaccuracyandpreventsthemaskingofhardwareerrors.IfECCis

enabled,checkthesystemeventlogforanyECCerrorsthatmayoccurduringthememory

test.

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RadiSys ATCA-5400 RTM Dokumentacja Strona 20