
2.RunDiagnostics®ThinkPadDevices®HDDActiveProtectionTest.
Attention:Donotapplyphysicalshocktothecomputerwhilethetestisrunning.
Foraccess,removetheseFRUs,inorder:
•“1010Batterypack”onpage75
•“1020SerialUltrabaySlimdeviceortravelbezel”onpage75
•“1030Solidstatedrive(SSD)orharddiskdrive(HDD)”onpage76
•“1050PCIExpressMiniCardforwirelessLAN”onpage80
•“1060PCIExpressMiniCardforwirelessWAN”onpage83
•“1070Keyboard”onpage85
•“1090WirelessUSBadapterorIntelTurboMemory”onpage90
•“1100Palmrestorpalmrestwithngerprintreader”onpage91
•“1110Bluetoothdaughtercard(BDC-2)”onpage93
•“1120Keyboardbezelandspeakerassembly”onpage94
•“11305-in-1MediaCardReaderadapter”onpage98
•“1140Bluetooth–wirelessradioswitchFPC”onpage98
•“1150LCDunit”onpage100
Table25.Removalstepsofsystemboard,fanassembly,and34-mmExpressCardslotframe
Followingcomponentssolderedonthetopsideofthesystemboardareextremelysensitive.Whenyouservice
thesystemboard,avoidanykindofroughhandling.
ForThinkPadT400s:
a :ICH(I/OControllerHub)
b :CPU
c :GMCH(GraphicsMemoryControllerHub)
d :AccelerometerchipfortheHDDActiveProtectionSystem™
104HardwareMaintenanceManual
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