Notes:
•Self-serviceCRUs:TheseCRUsunplugoraresecuredbynomorethantwoscrews.Examplesof
thesetypesofCRUsincludethekeyboard,themouse,anyUSBdevice,andthepowercord.Other
self-serviceCRUsdependingonproductdesignmightincludememorymodules,adaptercards,hard
diskdrives,andopticaldrives.
•Optional-serviceCRUs:TheseCRUsareisolatedpartswithinthecomputerandareconcealedbyan
accesspanelthatistypicallysecuredbymorethantwoscrews.Oncetheaccesspanelisremoved,the
specicCRUisvisible.
NumberFRUdescription
Self-serviceCRUOptional-serviceCRU
1
PowersupplyassemblyNoYes
2
Heatsinkandfanassembly
YesNo
3
MicroprocessorNoNo
4
MemorymodulesYesNo
5
Opticaldrive(availableinsomemodels)
YesNo
6
FrontaudioandUSBassembly
NoYes
7
FrontWiFiantennaNoYes
8
FrontbezelYesNo
9
Systemboard
NoNo
10
HarddiskdriveNoYes
11
PeripheralComponentInterconnect(PCI)card
YesNo
12
WiFicardmoduleNoYes
13
WiFiadaptercardNoYes
14
RearWiFiantennaYesNo
15
BatteryYesNo
16
Rearfan
NoYes
17
KeyboardYesNo
18
MouseYesNo
LookingupFRUinformation
FordetailedFRUinformation,suchastheFRUpartnumbersandsupportedcomputermodels,goto:
http:/www.lenovo.com/serviceparts-lookup
Chapter8.Locations73