How to reset mac pro memory
Then wait another 5 seconds and turn the Mac back on. Portable Macs with non-removable batteries: Shut down and unplug your Mac. On the built-in keyboard, press and hold the Shift, Option, and Control keys on the left side and press the power button and hold all of these down for 10 seconds, then release the keys.
Reset NVRAM or PRAM on your Mac
Connect the power adapter and then turn the Mac on normally. Portable Macs with removable batteries: Shut down your Mac. Disconnect the power cord and remove the battery. Press the power button, hold it for 5 seconds, and then let go. Put the battery back in, reconnect the power cord, and turn the Mac on normally.
Aside from the type of RAM used , and the name change, both serve the same function of storing important information your Mac needs when it boots up or accesses various services. Most Mac users don't think much about their Mac's parameter RAM, but it works hard anyway, keeping track of the following:. When your Mac starts up, it checks the parameter RAM to see which volume to boot from and how to set other important parameters.
Reset the SMC
Occasionally, the data stored in the parameter RAM is bad, which can cause various issues with your Mac, including the following common problems:. Luckily, the Parameter RAM doesn't actually go bad; it's just the data it contains that becomes corrupt. There are a number of ways this can happen. One common cause is a dead or dying battery in those Macs that use PRAM, which is a small-button style battery in the Mac.
How to know if you need to reset the SMC
Another cause is your Mac freezing or temporarily losing power in the middle of a software update. Things can also go awry when you upgrade your Mac with new hardware , add memory, install a new graphics card, or change startup volumes.
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- When you may need to reset PRAM and SMC on MacBook!
All of these activities can write new data to the parameter RAM. Writing data to the parameter RAM isn't an issue in itself, but it can be a source of problems when you change multiple items on your Mac.
Likewise, if you select a startup volume and then later physically remove that drive , the parameter RAM may retain the wrong startup volume information. One easy fix for many issues is to simply reset the parameter RAM to its default state. This will cause some data to be lost, specifically the date, the time, and the startup volume selection.
How to Reset PRAM and SMC on Your Mac.
Luckily, you can easily correct these settings using your Mac's System Preferences. Immediately press and hold the following keys: That's four keys: You must press and hold these four keys before you see the gray screen during the startup process.
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When and How to Reset Mac SMC (System Management Controller)
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