55Chapter 4 Problem, Meet Solution
If you have trouble ejecting a disc
Quitanyapplicationsthatmightbeusingthediscandtryagain.Ifthatdoesn’twork,
restartthecomputerandthenimmediatelypressandholdthetrackpadbutton.
Using Apple Hardware Test
IfyoususpectaproblemwiththeMacBookPro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computer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mightbesoftwarerelated.
Ifthisproceduredoesn’twork,youcaninserttheApplications Install DVDandhold
downtheDkeytouseAppleHardwareTest.