Lenovo Yoga 370 Hardware Maintenance Manual
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•ForWindows7:OpentheStartmenu,thenclickthearrownexttotheShutdownbutton.ClickSleep
fromthemenudisplayed.
•ForWindows10:OpentheStartmenu,clickPower,andthenclickSleep.
Incertaincircumstances,thecomputergoesintosleepmodeautomatically:
•Afteraperiodofinactivityspecifiedinpowerplansettings
•Whenthebatterypowerislow
Tocausethecomputertoreturnfromsleepmodeandresumeoperation,dooneofthefollowing:
•PresstheFnkey.
•Pressthepowerbutton.
Also,ineitherofthefollowingevents,thecomputerautomaticallyreturnsfromsleepmodeandresumes
operation:
•Theringindicator(RI)issignaledbyaserialdeviceoraPCCarddevice.
•Thetimesetontheresumetimerelapses.
Note:Thecomputerdoesnotacceptanyinputimmediatelyafteritenterssleepmode.Waitafew
secondsbeforetakinganyactiontoreenteroperationmode.
Hibernationmode
Inhibernationmode,thefollowingoccurs:
•Thesystemstatus,RAM,VRAM,andsetupdataarestoredonthestoragedrive.
•Thesystemispoweredoff.
Note:Ifthecomputerentersthehibernationmodewhileitisdockedtothedockingstationortheport
replicator,donotundockitbeforeresumingnormaloperation.Ifyoudoundockitandthentrytoresume
normaloperation,youwillgetanerrormessage,andyouwillhavetorestartthesystem.
Ifyouhavedefinedoneofthefollowingactionsastheeventthatcausesthesystemtogointohibernation
mode,performthataction.
•Closingthelid.
•Pressingthepowerbutton.
Also,thecomputergoesintohibernationmodeautomaticallyafteraperiodofinactivityspecifiedinpower
plansettings.
Whenthepoweristurnedon,thecomputerreturnsfromhibernationmodeandresumesoperation.The
hibernationfileinthebootrecordonthestoragedriveisread,andsystemstatusisrestoredfromthe
storagedrive.
Symptom-to-FRUindex
Thissectioncontainsfollowinginformation:
•“Numericerrorcodes”onpage34
•“Errormessages”onpage35
•“Beeperrors”onpage35
•“No-beepsymptoms”onpage37
•“LCD-relatedsymptoms”onpage37
•“Intermittentproblems”onpage37
•“Undeterminedproblems”onpage38
Chapter4.Relatedserviceinformation33