
Notes:
•Self-serviceCRUs:TheseCRUsunplugoraresecuredbynomorethantwoscrews.Examplesof
thesetypesofCRUsincludethekeyboard,themouse,anyUSBdevice,andthepowercord.Other
self-serviceCRUsdependingonproductdesignmightincludememorymodules,adaptercards,hard
diskdrives,andopticaldrives.
•Optional-serviceCRUs:TheseCRUsareisolatedpartswithinthecomputerandareconcealedbyan
accesspanelthatistypicallysecuredbymorethantwoscrews.Oncetheaccesspanelisremoved,the
specificCRUisvisible.
NumberFRUdescription
Self-serviceCRUOptional-serviceCRU
1
PowersupplyassemblyNoYes
2
Heatsinkandfanassembly
YesNo
3
MicroprocessorNoYes
4
MemorymodulesYesNo
5
Opticaldrive(availableinsomemodels)
YesNo
6
FrontaudioandUSBassembly
YesNo
7
Cardreader(availableinsomemodels)
NoYes
8
FrontWi-FiantennaNoYes
9
FrontbezelYesNo
10
BatteryYesNo
11
HarddiskdriveNoYes
12
PeripheralComponentInterconnect(PCI)card
YesNo
13
Wi-FicardmoduleNoYes
14
Wi-FiadaptercardNoYes
15
RearWi-FiantennaYesNo
16
Systemboard
NoNo
17
Systemfan
NoYes
18
KeyboardYesNo
19
MouseYesNo
LookingupFRUinformation
FordetailedFRUinformation,suchastheFRUpartnumbersandsupportedcomputermodels,goto:
http:/www.lenovo.com/serviceparts-lookup
Locatingpartsonthesystemboard
Figure4“Locationsofthepartsandconnectorsonthesystemboard”onpage72showsthelocations
ofthepartsandconnectorsonthesystemboard.
Chapter8.Locations71
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