Lenovo ThinkPad Edge E525 Hardware Maintenance Manual

Attention:Thesetupcongurationonthecomputeryouareservicingmayhavebeencustomized.Running
AutomaticCongurationmayalterthesettings.Notethecurrentcongurationsettings(usingtheView
Congurationoption);then,whenservicehasbeencompleted,verifythatthosesettingsremainineffect.
Strategyforreplacingaharddiskdrive
Alwaystrytorunalow-levelformatbeforereplacingaharddiskdrive(HDD).Thiswillcauseallcustomerdata
ontheharddisktobelost.Besurethatthecustomerhasacurrentbackupofthedatabeforedoingthistask.
Attention:Thedrivestartupsequenceinthecomputeryouareservicingmighthavebeenchanged.Be
extremelycarefulduringwriteoperationssuchascopying,saving,orformatting.Ifyouselectanincorrect
drive,dataorprogramscanbeoverwritten.
IfyourcomputerisshippedwithanmSATAdriveandaharddiskdrive,themSATAdrivewillbeseenas
harddisk0inthesystem,andassigneddriveC:.Theharddiskdrivewillbeseenasharddisk1,and
assigneddriveD:.ThemSATAdriveisinstalledinthewirelessWANcardslotofthecomputer.TheLenovo
preloadedsoftwareisinstalledonthemSATAdrive.
Importantnoticeforreplacingasystemboard
Somecomponentsmountedonasystemboardareverysensitive.Improperhandlingofasystemboardcan
causedamagetothosecomponents,andmaycauseasystemmalfunction.
Attention:Whenhandlingasystemboard:
•Donotdropasystemboardorapplyanyexcessiveforcetoit.
•Avoidroughhandlingofanykind.
•AvoidbendingasystemboardandpushingithardtopreventcrackingateachBallGridArray(BGA)
chipset.
Howtouseerrormessage
Usetheerrorcodesdisplayedonthescreentodiagnosefailures.Ifmorethanoneerrorcodeisdisplayed,
beginthediagnosiswiththersterrorcode.Whatevercausesthersterrorcodemightalsocausefalse
errorcodes.Ifnoerrorcodeisdisplayed,seewhethertheerrorsymptomislistedintheSymptom-to-FRU
Indexforthecomputeryouareservicing.
StrategyforreplacingFRUsforCTO,CMV,andGAV
Productdenition
DynamicCongureToOrder(CTO)
ThisprovidestheabilityforacustomertocongureaLenovosolutionfromaneSite,andhavethis
congurationsenttofulllment,whereitisbuiltandshippeddirectlytothecustomer.Themachinelabel,
ProductEntitlementWarehouse(PEW),eSupport,andtheHMMwillloadtheseproductsasthe4-digitMT
and3-digitmodel,wheremodel=“CTO”(Example:1829-CTO).
CustomModelVariant(CMV)
ThisisauniquecongurationthathasbeennegotiatedbetweenLenovoandthecustomer.Aunique4-digit
MTand3-digitmodelisprovidedtothecustomertoplaceorders(Example:1829-W15).ACMVisaspecial
bidoffering.Therefore,itisNOTgenerallyannounced.
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Lenovo ThinkPad Edge E525 Specifications

General

Brand	Lenovo
Model	ThinkPad Edge E525
Category	Laptop
Language	English