Mac Pro 2010 Manual

79Chapter 3 Making a Good Thing Better
Replacing the Internal Backup Battery
YourMacProusesaBR2032lithiumcoincellbatterythatpreservessettings,suchas
thedateandtime,whenyourMacProiso.Ifyounoticeintermittentproblemswhen
yourMacProstartsup,orchangesinthedateandtimesettings,replacethebattery.
Important:  Disposeoftheoldbatteryaccordingtoyourlocalenvironmentallaws.
Toreplacethebattery:
1 OpenyourMacProandremovethesidepanel,followingtheinstructionsin“Opening
YourMacProonpage39.
2 RemoveanyPCIExpresscardsthatblockaccesstothebattery.SeeAddingPCIExpress
Cards”onpage74forinstructions.
3 Removetheoldbatteryfromtheholder.
WARNING: Installingthebatteryincorrectlymaycauseanexplosion.Useonlythesame
typeofbatteryoranequivalentrecommendedbythemanufactureroftheoriginal.