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69Chapter 5 Last, but Not Least
Laser Information for Optical Disc Drives
WARNING: Makingadjustmentsorperformingproceduresotherthanthosespecied
inyourequipment’smanualmayresultinhazardousradiationexposure.
Theopticaldiscdriveinyourcomputercontainsalaserthatissafeinnormalusebut
thatmaybeharmfultoyoureyesifdisassembled.Foryoursafety,havethisequipment
servicedonlybyanAppleAuthorizedServiceProvider.
Important Handling Information
NOTICE: Failuretofollowthesehandlinginstructionscouldresultindamagetoyour
MacBookProorotherproperty.
Operating environmentOperatingyourMacBookProoutsidetheserangesmayaect
performance:
 Operating temperature:50°to95°F(10°to35°C)
 Storage temperature: -4°to113°F(-20°to45°C)
 Relative humidity:5%to90%(noncondensing)
 Operating altitude:0to10,000feet(0to3048meters)
Turning on your MacBook ProNeverturnonyourMacBookProunlessallofits
internalandexternalpartsareinplace.Operatingthecomputerwhenpartsare
missingmaybedangerousandmaydamageyourcomputer.