Lenovo ThinkPad Edge E545 Service Manual

Notes:
•Makesurethatyouusethecorrectscrew.Itisrecommendedtousenewscrewsforreplacements.If
youhaveatorquescrewdriver,tightenallscrewsrmlytothetorquespeciedinthescrewinformation
tableforeachstep.
•Ensuretorquescrewdriversarecalibratedcorrectlyfollowingcountryspecications.
Retainingserialnumbers
Thissectionincludesthefollowingdescriptions:
•“Restoringtheserialnumberofthesystemunit”onpage58
•“RetainingtheUUID”onpage59
•“ReadingorwritingtheECAinformation”onpage59
Restoringtheserialnumberofthesystemunit
Whenthecomputerwasmanufactured,theEEPROMonthesystemboardwasloadedwiththeserial
numbersofthesystemandallmajorcomponents.Thesenumbersneedtoremainthesamethroughout
thelifeofthecomputer.
Ifyoureplacethesystemboard,youmustrestoretheserialnumberofthesystemunittoitsoriginalvalue.
Beforereplacingthesystemboard,savetheoriginalserialnumberbydoingthefollowing:
1.InstallthelatestversionofLENOVOThinkPadHardwareMaintenanceDisketteorMaintenanceKey,
andthenrestartthecomputer.
2.Fromthemainmenu,select1.Setsystemidentication.
3.Turnoffthecomputer,andthenturnonthecomputeragain.
4.WhentheThinkPadlogoisdisplayed,pressEsc.
5.Select2.ReadS/NdatafromEEPROMandfollowtheinstructionsonthescreen.Theserialnumberof
eachdeviceinyourcomputerisdisplayed;theserialnumberofthesystemunitislistedasfollows:
•20Serialnumber
6.Writedownthatnumber.
Note:Theserialnumberofthesystemunitisalsowrittenonthelabelattachedtothebottomofthe
computer.
Afteryouhavereplacedthesystemboard,restoretheserialnumberbydoingthefollowing:
1.InstallthelatestversionofLENOVOThinkPadHardwareMaintenanceDisketteorMaintenanceKey,
andthenrestartthecomputer.
2.Fromthemainmenu,select1.Setsystemidentication.
3.Turnoffthecomputer,andthenturnonthecomputeragain.
4.WhentheThinkPadlogoisdisplayed,pressEsc.
5.Select1.AddS/NdatafromEEPROM.Followtheinstructionsonthescreen.
58HardwareMaintenanceManual

Lenovo ThinkPad Edge E545 Specifications

General

OS	windows 7 professional
Software	microsoft office, evernote, kindle and more
Numeric Keypad	no
Touch Screen	no
Screen Type	other
Screen Size	15.6 inches
Screen Resolution	1366 x 768 (hd)
Processor Brand	amd
Processor Model	amd a8-series
Type of Memory	ddr3
System Memory	4 gigabytes
System Memory Expansion	4 gigabytes
Audio Type	dolby enhanced audio v2
Speakers Type	stereo
Backlit Keyboard	no
Card Reader	yes
Touchpad	none
Battery Type	lithium-ion

Weight and Dimensions

Depth	9.64 inches
Height	1.12 inches
Width	14.84 inches