Locatingconnectorsontherearofyour
computer...............72
LocatingmajorFRUsandCRUs......73
LookingupFRUinformation.......75
Locatingpartsonthesystemboard....76
Locatinginternaldrives.........78
Formachinetypes:3688,3690,3691,3693,and
3695..................78
Locatingconnectors,controls,andindicators
onthefrontofyourcomputer.......79
Locatingconnectorsontherearofyour
computer...............80
LocatingmajorFRUsandCRUs......81
LookingupFRUinformation.......83
Locatingpartsonthesystemboard....84
Locatinginternaldrives.........86
Chapter10.ReplacingFRUs(for
machinetypes:2551,2552,2553,
2554,and2555)............87
Installingorreplacinghardware........87
Handlingstatic-sensitivedevices.....87
Installingexternaloptions........87
Removingthecomputercover.......88
Removingandreinstallingthefrontbezel..89
InstallingorreplacingaPCIcard......90
Installingorreplacingamemorymodule...93
Installingorreplacingtheopticaldrive...95
Replacingthecardreader........97
Replacingtheheatsinkandfanassembly..99
Replacingthefrontfanassembly.....101
Replacingtherearfanassembly......102
Installingthesolidstatedrive.......104
Replacingtheprimaryharddiskdrive....106
Replacingthesecondaryharddiskdrive...108
Installingthetertiaryharddiskdrive....110
Replacingthepowersupplyassembly...113
Replacingthemicroprocessor.......114
Replacingthesystemboard.......117
Completingthepartsreplacement.....120
Chapter11.ReplacingFRUs(for
machinetypes:3688,3690,3691,
3693,and3695)...........121
Installingorreplacinghardware........121
Handlingstatic-sensitivedevices.....121
Installingexternaloptions........121
Openingthecomputercover.......122
Removingandreinstallingthefrontbezel..122
Accessingthesystemboardcomponentsand
drives................124
Installingorreplacingamemorymodule...125
InstallingorreplacingaPCIcard......127
Installingorreplacingthecardreader....129
Replacingthebattery..........134
Installingthesolidstatedrive.......135
Replacingtheharddiskdrive.......137
Replacingtheopticaldrive........139
Replacingtheheatsinkandfanassembly..142
Replacingthepowersupplyassembly...145
Replacingthemicroprocessor.......150
Replacingthecoverpresenceswitch....153
Replacingtheinternalspeaker.......155
ReplacingthefrontaudioandUSB
assembly...............157
Replacingthesystemfan.........159
Replacingthethermalsensor.......160
Replacingthepowerswitch........163
Replacingthesystemboard.......164
Completingthepartsreplacement.....167
Chapter12.Additionalservice
information.............169
Securityfeatures..............169
Hardware-controlledpasswords......169
Operatingsystempassword.......169
Vitalproductdata............169
BIOSlevels................169
Flashupdateprocedures..........169
Updating(ashing)theBIOSfromadisc...170
Updating(ashing)theBIOSfromyour
operatingsystem............171
RecoveringfromaPOST/BIOSupdate
failure................171
Powermanagement............171
Automaticcongurationandpowerinterface
(ACPI)BIOS..............172
AutomaticPower-onfeatures.......172
AppendixA.Notices.........173
Televisionoutputnotice...........174
EuropeanconformanceCEmark.......174
Trademarks................174
Index.................175
ivThinkStationHardwareMaintenanceManual