Lenovo System x3550 M4 - Page 116

passwordhasaccesstothefullSetuputilitymenu;thesystemadministratorcangivetheuserauthorityto
set,change,anddeletethepower-onpassword.Auserwhotypesthepower-onpasswordhasaccess
toonlythelimitedSetuputilitymenu;theusercanset,change,anddeletethepower-onpassword,ifthe
systemadministratorhasgiventheuserthatauthority.
Power-onpassword
Ifapower-onpasswordisset,whenyouturnontheserver,youmusttypethepower-onpasswordto
completethesystemstartup.Youcanuseanycombinationof6-20printableASCIIcharactersforthe
password.
Whenapower-onpasswordisset,youcanenabletheUnattendedStartmode,inwhichthekeyboardand
mouseremainlockedbuttheoperatingsystemcanstart.Youcanunlockthekeyboardandmouseby
typingthepower-onpassword.
Ifyouforgetthepower-onpassword,youcanregainaccesstotheserverinanyofthefollowingways:
•Ifanadministratorpasswordisset,typetheadministratorpasswordatthepasswordprompt.Startthe
Setuputilityandresetthepower-onpassword.
•Removethebatteryfromtheserver,wait30seconds,andthenreinstallit.
•Changethepositionofthepower-onpasswordswitch(switch4)onthesystemboardswitchblock(SW3)
tobypassthepower-onpasswordcheck(seeTable3“SystemboardSW3switchblockdefinition”on
page29
formoreinformation).
Figure84.System-boardswitches,jumpers,andbuttons
Attention:Beforeyouchangeanyswitchsettingsormoveanyjumpers,turnofftheserver;then,
disconnectallpowercordsandexternalcables.Seethesafetyinformationthatbegins“Safety”onpage
102Systemx3550M4InstallationandServiceGuide