Lenovo E455 Technical Information Seite 26

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Attention:Thedrivestartupsequenceinthecomputeryouareservicingmayhavebeenchanged.Be
extremelycarefulduringwriteoperationssuchascopying,saving,orformatting.Ifyouselectanincorrect
drive,dataorprogramscanbeoverwritten.
IfthecomputerisshippedwithbothanmSATAsolid-statedriveandaharddiskdrive,themSATAsolid-state
driveisusedforthecache”functionandtosupporttheIntel
®
RapidStartT echnology.Itisrecommended
thatusersdonotreplacethemSATAsolid-statedrivebythemselves.Otherwise,thecache”functionwill
notworkandtheIntelRapidStartTechnologycannotbeusedanymore.
Attention:EnsurethatyoupartitionthemSATAsolid-statedriveafterinstallingitonthecomputeryouare
servicing.Otherwise,themSATAsolid-statedrivewillnotfunctioncorrectly.Forinstructionsonhowto
partitionanmSATAsolid-statedrive,gotohttp://www.lenovo.com/support/msata-fru.
Importantnoticeforreplacingasystemboard
Somecomponentsmountedonasystemboardareverysensitive.Improperhandlingofasystemboardcan
causedamagetothosecomponents,andmaycauseasystemmalfunction.
Attention:Whenhandlingasystemboard:
Donotdropasystemboardorapplyanyexcessiveforcetoit.
Avoidroughhandlingofanykind.
AvoidbendingasystemboardandhardpushingtopreventcrackingateachBGA(BallGridArray)chipset.
Howtouseerrormessage
Usetheerrorcodesdisplayedonthescreentodiagnosefailures.Ifmorethanoneerrorcodeisdisplayed,
beginthediagnosiswiththefirsterrorcode.Whatevercausesthefirsterrorcodemayalsocausefalseerror
codes.Ifnoerrorcodeisdisplayed,seewhethertheerrorsymptomislistedintheSymptom-to-FRU
Indexforthecomputeryouareservicing.
StrategyforreplacingFRUsforCTO,specialbidmodel,andstandard
models
ThistopicprovidesinformationaboutthemodeltypesandFRUidentification.
Productdefinition
Thistopicintroducesdifferentmodeltypesandhowtoidentifyeachtype.
DynamicConfigureToOrder(CTO)
ThismodelprovidestheabilityforacustomertoconfigureaLenovosolutionfromawebsite,andhavethis
configurationsenttofulfillment,whereitisbuiltandshippeddirectlytothecustomer.Themachinelabeland
eSupportwillloadtheseproductsasthe4-characterMT,4-charactermodeland2-charactercountrycode.
Themodelis“CTO1”andthedefaultcountrycodeis“WW”(example:20AACTO1WW).
Specialbidmodel
ThismodelisauniqueconfigurationthathasbeennegotiatedbetweenLenovoandthecustomer.Aunique
MTMconsistsofa4-characterMT,a4-charactermodel,andanumeric2-charactercountrycodeisprovided
tothecustomertoplaceorders(example:20AA000955).Thecountrycodeassignedisnumericanddoes
notdesignateaspecificcountryorregion.ThecustommodelfactsheetfortheMTMindicateswhichcountry
thespecialbidMTMissetupfor.Specialbidofferingisnotgenerallyannounced.
Standardmodel
Standardmodels(fixedconfiguration)areannouncedandofferedtoallcustomers.TheMTMportionofthe
machinelabelconsistsofa4-characterMT,a4-charactermodel,andanalphabetic2-charactercountry
20HardwareMaintenanceManual
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