Lenovo 388 User Manual Page 56

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1PMBusconnector
TheBMCcanreadthepowersupplystatusregisteredthroughPMBus.Youdonotneedtoconnect
anydevicetothePMBusconnector.Thisconnectoriskeptforpowermanagementinmodelswith
redundantpowersupplymodules.ThefunctionofthePMBusconnectorisnotavailableformodelswitha
screw-securednon-hot-swappowersupply.
2TPMconnector
UsedtoconnectaTPMmodule,whichisasecuritychip,toprotectyourserverandstrengthenserver
security.See“InstallingorremovingtheTPMmodule”onpage109.
36Memoryslots
Yourserversystemboardprovidesfourmemoryslotstosupportuptofourmemorymodules.Formore
information,see“Memorymoduleinstallationrules”onpage90
.
7iButtonsocket
YourserversupportsonboardSATAsoftwareRAIDlevels0,1,and10.However,youcanactivateonboard
SATAsoftwareRAID5byinstallingaThinkServerSATASoftwareRAID5activationkeyintheiButtonsocket.
Formoreinformation,see“InstallingorremovingtheThinkServerSATASoftwareRAID5Key”onpage102.
8Mainpowerconnector
Usedtoconnectthe24-pinP1powerconnectorofthepowersupplytoprovidemainpowertoyourserver.
95-pinsystemfan2connector
Usedtoconnectthecableoftheupperfrontsystemfan(frontsystemfan2)ifyourservermodelhas
twofrontsystemfans.
10Microprocessor
Amicroprocessorincorporatesmostorallofthefunctionsofacomputer'scentralprocessingunit(CPU)on
asingleintegratedcircuit.Themicroprocessorforyourserverissecuredinthemicroprocessorsocketon
thesystemboardandaheatsinkandfanassemblyisinstalledabovethemicroprocessortoprovidecooling.
Formoreinformationaboutyourmicroprocessortype,see“Features”onpage7
.
11IntelC202chip
TheIntelC202chiponthesystemboardservesasaplatformcontrollerhub(PCH),whichprovidesthedata
bufferingandinterfacearbitrationrequiredtoensurethatsysteminterfacesoperateefcientlyandprovides
thebandwidthnecessarytoenablethesystemtoobtainpeakperformance.Thechipsupportsandprovides
manyfeatures,includingtheonboardSATAsoftwareRAID.
124-pinsystemfan1connector
Usedtoconnectthecableofthelowerfrontsystemfan(frontsystemfan1).
1318SATAconnectors
UsedtoconnectSATAsignalcablesfortheSATAharddiskdrivesorSATAopticaldrives.
44ThinkServerHardwareMaintenanceManual
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