Lenovo System x3250 M5 - System-Board Leds

Table4.SystemboardSW1switchblockdefinition
Switch
number
Default
positionDescription
1
Off
AssertsTPMphysicalpresence.Whenthisswitchistoggledon,theTPMphysical
presenceisasserted.
2
OffPower-onpasswordoverride.Changingthepositionofthisswitchbypassesthepower-on
passwordcheckthenexttimetheserveristurnedonandstartstheSetuputilitysothat
youcanchangeordeletethepower-onpassword.Youdonothavetomovetheswitch
backtothedefaultpositionafterthepower-onpasswordinoverridden.Changingthe
positionofthisswitchdoesnotaffecttheadministratorpasswordcheckifanadministrator
passwordisset.See“Passwords”onpage93
foradditionalinformationaboutpasswords.
3
Off
Defaultoff.
4
Off
AssertsIMM2reset.Whenthisswitchistoggledon,theIMM2resetisasserted.
Thefollowingtabledescribesthefunctionsofthebuttononthesystemboard.
Table5.Buttondefinition
ButtonnameDefinition
NMIbutton
Thisbuttonisontherearoftheserver.Pressthisbuttontoforceanonmaskableinterrupt
tothemicroprocessor.Youmighthavetouseapenortheendofastraightenedpaperclip
topressthebutton.Youcanalsouseittoforceablue-screenmemorydump(usethis
buttononlywhenyouaredirectedtodosobyLenovoSupport).
System-boardLEDs
Thefollowingillustrationshowsthelight-emittingdiodes(LEDs)onthesystemboard.
Chapter2.Installingoptionaldevices29