![]() ![]() Listening to your computer may seem a bit metaphysical, but can provide helpful clues to startup problems. Sometimes plugging in the computer and letting it sit for 30-60 minutes recharges the battery enough to permit booting. A dead or dying PRAM battery can prevent a Mac from booting or cause erratic behavior. ![]() ![]() If the date and time reset each time you unplug the Mac you need a new PRAM battery. Macs also have another battery, called the PRAM (or NV-RAM) battery, that saves things like network settings, choice of startup drive, etc.
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