How to Reset Your Mac's PRAM or NVRAM (Parameter RAM)
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February 24, at 6: Jen says: April 1, at 1: Dianna Lee says: April 23, at 8: Mac book pro black screen help says: May 15, at 2: Aaron Scott says: June 17, at 7: June 18, at 4: Zafira says: Shakira says: While you still hold down the usual four keys, you no longer have to wait for a second reboot or listen carefully to the startup chimes. To use this method you must be able to boot your Mac and log in.
When you may need to reset PRAM and SMC on MacBook
Once the desktop is displayed perform the following:. Once your Mac finishes starting, you can use the System Preferences to set the time zone, set the date and time, select the startup volume, and configure any display options you wish to use. To do this, click the System Preferences icon in the Dock.
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- PRAM (Parameter Random Access Memory) Definition.
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- How to Reset Your Mac's PRAM or NVRAM (Parameter RAM);
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- Reset the SMC.
To configure display options , click the Displays icon in the Hardware section of the System Preferences window. Still having problems? Share Pin Email.
Tom Nelson has written hundreds of articles, tutorials, and reviews for Other World Computing and About. He is the president of Coyote Moon, Inc. Updated September 21, Most Mac users don't think much about their Mac's parameter RAM, but it works hard anyway, keeping track of the following: Startup volume Speaker volume Display settings resolution, color depth, refresh rate, number of displays Kernel panics information DVD region settings Date and time, including time zone Computer name Backlight levels Keyboard language Location services state enabled or disabled.
How, When, & Why to reset the PRAM & SMC on your Mac
Occasionally, the data stored in the parameter RAM is bad, which can cause various issues with your Mac, including the following common problems: Wrong date, time, or time zone. Speaker volume set too loud or too soft. Display problems. Sometimes you'll see the gray Apple boot screen and then the display will go blank.
You can take your Mac to an Apple service provider to replace the battery. Published Date: Thu Nov 08 Yes No.