Lenovo x3650 M4 BD 5466 - Page 40

System-boardjumpers
Thissectiondescribesthejumpersonthesystemboard.
Figure14.Systemboardjumpers
Table3.Systemboardjumpers
JumpernumberJumpernameJumpersetting
CN14ClearCMOSjumper•Pins1and2:Normal(default)-
ThiskeepstheCMOSdata.
•Pins2and3:Thisclearsthe
CMOSdatasuchaspower-on
passwordandloadsthedefault
UEFIsettings.
Note2
J2UEFIbootrecoveryjumper
•Pins1and2:Normal(default)
LoadstheprimaryfirmwareROM
page.
•Pins2and3:Loadsthesecondary
(backup)firmwareROMpage.
Notes1and2
J9IMMTPMjumper
•Pins1and2:Normal(default)TPM
notphysicalpresent.
•Pins2and3:TPMphysical
present.
Notes:
1.Ifnojumperispresent,theserverrespondsasifthepinsaresetto1and2.
2.ChangingthepositionoftheUEFIrecoveryjumperfrompins1and2topins2and3beforetheserveristurned
onsetstheUEFIrecoveryprocess.Donotchangethejumperpinpositionaftertheserveristurnedon.Thiscan
causeanunpredictableproblem.
26LenovoSystemx3650M4BDInstallationandServiceGuide