You might need to reset NVRAM or PRAM on Mac If the MacBook, Mac Mini or iMac is experiencing issues and is slow to boot or crashes frequently.
Reset NVRAM or PRAM on Mac
NVM (Non-Volatile RAM) is a location for storage specifically designed to store user preferences and computer settings such as Time Zone, Screen Resolution Volume Level, and other data.
PRAM (Parameter Random-Access Memory) is essentially performing the similar functions of NVRAM. PRAM was utilized in old version that came with Mac, NVRAM is being used in more recent version of Mac.
The two NVRAM and PRAM are able to store Data and other information, even when the power has been turned off in the laptop. This lets Mac to boot up with Settings and the data stored in the NVRAM or PRAM.
What is the best time to reset NVRAM or PRAM on Mac?
Although it is not common to have NVRAM to become corrupted on an Mac however, the issues listed below typically stem from a corrupted NVRAM.
- You are having trouble managing the volume on your Mac
- Volume resets on Mac
- Mac starts with the question mark
- Mac shows an error in Date or Time Zone.
- The resolution of the screen keeps changing on Mac
If you own an older Mac that uses PRAM, the problems mentioned above and the ones below are due to a damaged PRAM.
- Mac isn’t charging correctly
- Mac shows inaccurate battery percentage
- The drive is not showing on Mac
- Issues related to Bluetooth as well as AirPort Mode
- Issues that arise with Mouse and other devices from the outside
- Hardware-related problems in General
If you’re having one of the problems mentioned above, it is likely that the information stored inside PRAM or NVRAM NVRAM or PRAM is corrupted.
It is a breeze to reset the NVRAM and the PRAM on Mac and make the NVRAM/PRAM settings reset to factory default settings.
The steps to reset NVRAM on Mac differs, based on the type of computer you have. Mac runs on Intel Processor, Apple M1 Processor and as well the fact that your Mac has an Apple T2 security chip.
1. The reset NVRAM on Mac using Intel Processor
Remove all external drives from Your Mac (except external keyboards) as well as follow these steps for Resetting PRAM or NVRAM on an Mac that is powered by Intel processors.
1. Use the Volume Up button to boost the volume of your Mac.
2. Click on the Apple Icon in top-menu bar and then select the Shut Down option from the drop-down menu. Wait to allow your Mac to shut down completely.
3. Press the power button to begin Mac immediately. Press and Hold Command + Option + R + P keys.
4. Keep holding down the four Keys until you hear the first sound of start-up and then release the Keys following the second sound of start-up.
2. Set NVRAM on Mac with the T2 Security Chip
Click on the Apple Logo and then click on About This Mac > > System Information. Then you will see a Controller icon in the left pane. In the right-hand pane, you’ll be able to determine whether your Mac is running Apple T2 Chip.
If your Mac has an Apple T2 Security Chip, the steps to reset NVRAM are exactly the same as the previous steps, except one minor change when pressing the keys.
1. Press the power button to launch Mac and then immediately press and Press Command + Hold (Alt) and R + P keys.
2. Keep holding down the four Keys to ensure that Mac begins at Apple Logo and then release the Keys immediately after the Apple Logo is displayed and then disappears again.
3. The reset NVRAM on Mac using the Apple M1 Processor
In case your Mac (November 2020 or later) comes with an Apple M1 processor, you aren’t able to use command (Alt) and Option R + P key combination to reset the NVRAM.
According to the discussion on the Apple support forum According to discussions on Apple’s support forum M1 processor was built to perform automatic tests on NVRAM when the computer comes back up after the shut down.
This may be a sign that the Mac equipped with an M1 Processor will automatically reset its NVRAM in the event that it detects any issues during the startup process.
Therefore, the only method to resolve issues on the Mac using the Apple M1 Processor is to make use of the Recovery Mode.
Grey Screen Following NVRAM Reset
If you’ve successfully followed the these steps to reset NRAM and the result has resulted in your Mac showing an Grey screen for a few minutes the reason is likely because connected devices are that are interfering with NVRAM or PRAM Reset.
To solve this issue, turn off all Devices attached to your MacBook (except the mouse and External keyboard) and follow the steps to reset the NVRAM or PRAM of your Mac.