Lenovo System x3550 M4 - System-Board Switches, Jumpers, and Buttons

Figure16.System-boardexternalconnectors
System-boardswitches,jumpers,andbuttons
Thefollowingillustrationshowsthelocationoftheswitches,jumpers,andbuttonsontheserver.
Important:
1.Beforeyouchangeanyswitchsettingsormoveanyjumpers,turnofftheserver;then,disconnectall
powercordsandexternalcables.Reviewtheinformationin“Safety”onpagev,“Installationguidelines”
onpage31,“Handlingstatic-sensitivedevices”onpage33,and“Turningofftheserver”onpage21.
2.Anysystem-boardswitchorjumperblockthatisnotshownintheillustrationsinthisdocumentare
reserved.
3.Ifthereisaclearprotectivestickeronthetopoftheswitchblocks,youmustremoveanddiscarditto
accesstheswitches.
Chapter2.Installingoptionaldevices27