Specifications

57Chapter 4 Problem, Meet Solution
If you have trouble ejecting a disc
Â Quitanyapplicationsthatmightbeusingthediscandtryagain.
Â Ifthisdoesn’twork,restartthecomputerwhileholdingdownthetrackpad.
Using Apple Hardware Test
IfyoususpectaproblemwiththeMacBookhardware,youcanusetheAppleHardware
Testapplicationtohelpdetermineifthereisaproblemwithoneofthecomputer’s
components,suchasthememoryorprocessor.
To use Apple Hardware Test:
1 Disconnectallexternaldevicesfromyourcomputerexceptthepoweradapter.
IfyouhaveanEthernetcableconnected,disconnectit.
2 RestartyourMacBookandholddowntheDkeyasitstartsup.
3 WhentheAppleHardwareTestchooserscreenappears,selectthelanguageforyour
location.
4 PresstheReturnkeyorclicktherightarrowbutton.
5 WhentheAppleHardwareTestmainscreenappears(afterabout45seconds),follow
theonscreeninstructions.
6 IfAppleHardwareTestdetectsaproblem,itdisplaysanerrorcode.Makeanoteofthe
errorcodebeforepursuingsupportoptions.IfAppleHardwareTestdoesn’tdetecta
hardwarefailure,theproblemmaybesoftwarerelated.
Ifthisproceduredoesn’twork,youcanuseAppleHardwareTestfromtheApplications
Install DVD thatcamewithyourcomputer.Formoreinformation,seetheApple
HardwareTestReadMeleontheApplications Install DVD.