How To Reset The Pram & SMC On Mac? (And Why)

Is your MacBook functioning abnormally? Are you worried about the malfunctioning and crashing of your Mac? Has the operating system of your Mac slowed down?

Don’t Be Upset!

We have got the appropriate solutions to your problems. If your MacBook is facing all such issues then there is a problem with the PRAM and SMC settings in your Mac.

In this article, we will define PRAM and SMC settings in your Mac. We will also enlighten the problems occurring in the PRAM and SMC.

Above all, we will share the accurate method and strategy to reset PRAM and SMC MacBook pro.

So, let’s enter upon.

What Is PRAM?

PRAM stands for Parameter Random Access Memory. All the system settings in MacBook such as speaker volume, time zone, display resolution, color depth, etc., are present in PRAM.

It permanently stores the core setting details and information related to the operating system of your Mac.

It also uses a small battery to keep the setting information stored even when the MacBook is shut off.

How To Reset PRAM On The MacBook?

Following are the steps that will help you reset PRAM on your MacBook pro;

  • Detach all the USB devices from your MacBook and shut it down.

  • Press the power button to power on your Mac and then press the Option +
    Command + P + R keys immediately. (Press and hold all these keys together before the grey screen appears)


  1. If you have a MacBook without an Apple T2 security chip, keep holding the above-mentioned keys until you hear the second startup sound.

  2. If you possess a MacBook having an Apple T2 security chip then release the keys after the logo emerges and disappears twice.

  3. When you will release the keys after the required time, the MacBook will power on. After logging in, adjust the changed time zone and display resolution.

After performing all these steps, check whether the problems have been resolved. If the issues are no more then you have successfully reset PRAM on your MacBook.

Why Should We Reset PRAM On Mac?

Sometimes an issue may occur in the settings system of a MacBook. It may start crashing, the settings can be lost, and the Mac may face connectivity issues. It all happens due to malfunctioning and defects in the PRAM settings of the Mac.

The defects in the PRAM settings can also cause the lights, battery meter, clock, ports, and the power button of your Mac to behave inefficiently. However, if you notice such strange behavior then you should reset PRAM in Mac.

Resetting the PRAM can resolve various technical problems. The issues may include abnormal changes in display and resolution, fluctuating battery icons, strange mouse movements, keyboard responses, etc.

What Is Meant By SMC In Mac?

SMC in MacBook abbreviates as System Management Controller. It controls different hardware settings and makes sure that a MacBook is functioning effectively. 

The SMC plays a vital role in protecting the battery supply of your MacBook and conserving power distribution. It also controls system performance, cooling fans, thermal energy, and LED censors.

How To Reset The SMC MacBook Pro?

The process to reset the SMC MacBook varies with the model and type of the device. MacBooks with and without Apple T2 security chips follow different procedures to reset the SMC. Similarly, laptops having removable and non-removable batteries have different steps to reset the SMC.

1. Laptops With The Apple T2 Security Chips.

  • Power off the MacBook.

  • Press and hold the Control + Option + Right Shift Keys together.

  • After seven seconds, press and hold the power button. (Keep holding the other three keys as well)

  • Keep holding all four keys for seven seconds then release all the keys.

  • Wait for 5 seconds then press the Power button again.

2. Laptops With Non-removable Batteries And Without T2 Security Chips.

  • Power off the MacBook.

  • Press and hold the Left shift key + Control + Option + Power button for ten to twelve seconds.

  • Release all four buttons simultaneously and then press the Power button.

This SMC resetting process supports the devices including the MacBook Pro from mid-2009 to 2017, MacBook Air 2017 model and before it, and all MacBook models excluding the 13-inch 2009 model.

3. Laptops With Removable Batteries And Without Apple T2 Security Chips.

  • Shut down the MacBook.

  • Take out the battery.

  • Press and hold the Power button for 5 seconds.

  • Attach the battery.

  • Press the Power button.

This SMC resetting procedure only applies to the models like the mid-2009 model 13-inch MacBook and all MacBooks and MacBook Pros from the start of 2009 and older.

Why Do We Need To Reset SMC On MACbook Pro?

The SMC (System Management Controller) automatically controls the sleep and waking modes of the hard drive when you close or start your MacBook.

Though, if the hard drive of your MacBook or any other laptop does not put to sleep, there may be an issue with the SMC.

This imperfection and poor functioning of SMC may lead to quick battery drainage and more overheating of your MacBook. In this case, you should reset SMC MacBook pro to get rid of all these problems.

Resetting your SMC MacBook pro can help you resolve various problems. Such as slow powering off, the inefficiency of USB ports and Bluetooth connections, noisy cooling fans, overheating, Wi-Fi connection problems, and unresponsiveness of your MacBook pro.

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