Lenovo ThinkCentre M90p - Power Management; Automatic Configuration and Power Interface (ACPI) BIOS; Automatic Power-On Features

2.Unplugallpowercordsfromelectricaloutlets,andopenthecomputercover.Referto“Openingthe
computercover”onpage68.
3.Accessthesystemboard.Referto“Replacingthesystemboard”onpage82.
4.LocatetheClearCMOS/Recoveryjumperonthesystemboard.Referto“Locatingpartsonthe
systemboard”onpage70.
5.RemoveanycablesthatimpedeaccesstotheClearCMOS/Recoveryjumper.
6.Movethejumperfromthestandardposition(pin1andpin2)tothemaintenanceposition(pin2and
pin3).
7.Reconnectanycablesthatweredisconnectedandreinstalltheharddiskdriveifremoved.
8.Closethecomputercoverandreconnectthepowercordsforthecomputerandmonitortoelectrical
outlets.Referto“Completingthepartsreplacement”onpage93.
9.Turnonthecomputerandthemonitor.InsertthePOST/BIOSupdate(ash)discintotheopticaldrive.
10.Turnthecomputeroffandbackonagain.Therecoverysessionbegins.
Note:Therecoverysessionwilltaketwotothreeminutes.Duringthistimeyouwillhearaseries
ofbeeps.
11.Aftertherecoverysessioniscompleted,theseriesofbeepswillend,andthesystemwillautomatically
turnoff.Removethediscfromtheopticaldrivebeforethesystemcompletelyturnsoff.
12.Repeatsteps2through5.
13.MovetheClearCMOS/Recoveryjumperbacktothestandardposition(pin1andpin2).
14.Reconnectanycablesthatweredisconnectedandreinstalltheharddiskdriveifremoved.
15.Closethecomputercoverandreconnectthepowercordsforthecomputerandmonitortoelectrical
outlets.Referto“Completingthepartsreplacement”onpage93.
16.Turnonthecomputertorestarttheoperatingsystem.
Powermanagement
Powermanagementreducesthepowerconsumptionofcertaincomponentsofthecomputersuchasthe
systempowersupply,processor,harddiskdrives,andsomemonitors.
Automaticcongurationandpowerinterface(ACPI)BIOS
BeinganACPIBIOSsystem,theoperatingsystemisallowedtocontrolthepowermanagementfeatures
ofthecomputerandthesettingforAdvancedPowerManagement(APM)BIOSmodeisignored.Not
alloperatingsystemssupportACPIBIOSmode.
AutomaticPower-Onfeatures
TheAutomaticPower-OnfeatureswithinthePowerManagementmenuallowyoutoenableanddisable
featuresthatturnonthecomputerautomatically.
•RTCresume:Youcanspecifyadateandtimeatwhichthecomputerwillbeturnedonautomatically.
Thiscanbeeitherasingleeventoradailyevent.
•WakeonLAN:Ifthecomputerhasaproperlyconguredtoken-ringorEthernetLANadaptercardthatis
WakeonLAN-enabledandthereisremotenetworkmanagementsoftware,youcanusetheWakeonLAN
feature.WhenyousetWakeonLANtoEnabled,thecomputerwillturnonwhenitreceivesaspecic
signalfromanothercomputeronthelocalareanetwork(LAN).
Chapter10.Additionalserviceinformation99