
15USB3.0connectors(2)
UsedtoattachaUSB-compatibledevice,suchasaUSBkeyboard,mouse,scanner,orprinter.Ifyou
havemorethansixUSBdevices,youcanpurchaseaUSBhub,whichyoucanusetoconnectadditional
USBdevices.
16ThinkServerTrustedPlatformModuleconnector
UsedtoconnectaThinkServerTrustedPlatformModule(hereinafterreferredtoastheTPM),whichis
asecuritychip,toenhanceserversecurity.See“InstallingorremovingtheThinkServerTrustedPlatform
Module”onpage75.
18SDmoduleconnector
UsedtoconnectanSDmodule.
19Serialconnector
Usedtoattachadevicethatusesa9-pinserialconnector.
21ThinkServerSystemManagerPremiumconnector
UsedtoconnectaThinkServerSystemManagerPremiumtoenableadvancedremotemanagement
functionsonyourserver.
22Redundantpowersupplyconnector2
24Redundantpowersupplyconnector1
Usedtoconnectaredundantpowersupply.
25RAIDupgradekeyconnector
UsedtoconnectaThinkServerRAID110iupgradekey.
26Intrusionswitchconnector
Usedtoconnecttoanintrusionswitch.
28323540Memoryslots
Thereare24memoryslotsonthesystemboard.Formoreinformation,see“Memorymoduleinstallation
rules”onpage68.
23Microprocessor2socket
37Microprocessor1socket
Forservermodelswithtwomicroprocessors,eachofthemicroprocessorissecuredinthemicroprocessor
socketonthesystemboardandaheatsinkisinstalledaboveittoprovidecooling.Forservermodelswith
onemicroprocessor,thesocketforthemicroprocessor2isprotectedbyamicroprocessorsocketcover.
2729303134363839Systemfanconnectors
Usedtoconnectthecableofthecorrespondingsystemfan.
40ThinkServerRD550UserGuideandHardwareMaintenanceManual
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