Lenovo ThinkCentre Edge 91 - Specifications

Chapter9.ReplacingFRUs(Machine
Types:1857,1893,and1895)....107
Locations.................107
Locatingconnectors,controls,andindicators
onthefrontofyourcomputer.......107
Locatingconnectorsontherearofyour
computer...............108
Locatingcomponents..........108
Locatingpartsonthesystemboard....109
Locatinginternaldrives.........111
Handlingstatic-sensitivedevices.......111
Installingorreplacinghardware........112
Removingthecomputercover.......112
Removingandreinstallingthefrontbezel..113
Accessingthesystemboardcomponentsand
drives................114
InstallingorreplacingaPCIcard......116
Installingorreplacingamemorymodule...118
Replacingthebattery..........119
Replacingtheharddiskdrive.......120
Replacingtheopticaldrive........123
Replacingthepowersupplyassembly...126
Replacingtheheatsinkandfanassembly..130
Replacingthemicroprocessor.......133
Replacingthesystemboard.......136
Replacingthesystemfanassembly....139
ReplacingthefrontaudioandUSB
assembly...............140
Completingthepartsreplacement.....141
Chapter10.FRUlists........143
Overall:1852,1853,1855,3247,and3248...143
MechanicalFRUs.............149
KeyboardandMouse............152
AdaptersandmiscellaneousFRUs.......177
PowerCords...............178
Recoverydiscs..............183
Windows7StarterRecoveryCD......183
Windows7HomeBasic32RecoveryCD..184
Windows7HomePremium32Recovery
CD.................185
Windows7HomePremium64Recovery
CD.................186
Windows7Professional32RecoveryCD..189
Windows7Professional64RecoveryCD..190
WindowsXPProfessional32RecoveryCD..192
WindowsXPProfessionalGeneric32
RecoveryCD.............192
Overall:MT1857,1893,1895,3250,and3253..195
MechanicalFRUs.............202
KeyboardandMouse............205
AdaptersandmiscellaneousFRUs.......230
PowerCords...............230
Recoverydiscs..............235
Windows7StarterRecoveryCD......235
Windows7HomeBasic32RecoveryCD..236
Windows7HomePremium32Recovery
CD.................237
Windows7HomePremium64Recovery
CD.................238
Windows7Professional32SP1Recovery
CD.................241
Windows7Professional64SP1Recovery
CD.................242
WindowsXPProfessional32RecoveryCD..244
WindowsXPProfessionalGenericRecovery
CD.................244
Chapter11.Additionalservice
information.............249
Securityfeatures..............249
Hardware-controlledpasswords......249
Operatingsystempassword.......249
VitalProductData...........249
BIOSlevels................249
Updating(ashing)theBIOSfromadisc....249
Updating(ashing)theBIOSfromyouroperating
system..................250
RecoveringfromaPOST/BIOSupdatefailure..250
Powermanagement............251
AdvancedCongurationandPowerInterface
(ACPI)BIOS..............251
AutomaticPower-Onfeatures.......251
AppendixA.Notices.........253
Televisionoutputnotice...........254
EuropeanconformanceCEmark.......254
Trademarks................254
Index.................255
iiThinkCentreHardwareMaintenanceManual