Manual Pram Reset Mac Pro 2009

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Introduction

Does resetting PRAM work on all Macs? Yes, the command combination to rest PRAM has been the same for ages, and it works on all Macs, whether they are brand new MacBook Pro, Retina iMac, MacBook Air, Intel or PPC architecture, a MacBook, iMac, or a Mac Mini, or virtually any other Mac that has been made, the key command is the same and the effect is the same.

Manual pram reset mac pro 2009 manual

What the SMC does:

  • When things go out of hand on PRAM and SMC, a simple power reset cannot fix any issues. You need to reset Mac PRAM and SMC in order to resolve any troubles. Find out how you can reset them in the next parts below. When to Reset Mac PRAM and SMC. Resetting the PRAM and SMC should not be done out of habit.
  • When the Recovery Mode Utilities window shows up, pick Disk Utility and click Continue. Select your main hard drive usually called Macintosh HD. Click the Erase button on top ribbon of Disk Utility to start erasing your hard drive for factory reset MacBook Pro.

Resetting the SMC on portables with a battery you should not remove on your own. Note: Portable computers that have a battery you should not remove on your own include MacBook Pro (Early 2009) and later, all models of MacBook Air, and MacBook (Late 2009). 1.Shut down the computer. To reset the PRAM, reboot the computer and hold the options-command-P-R keys at the same time. The computer will chime, and then continually reset and chime while these keys are held.

The SMC is responsible for these and other low-level functions on Intel-based Mac computers:

  • Responding to presses of the power button
  • Responding to the display lid opening and closing on Mac notebooks
  • Battery management
  • Thermal management
  • Sudden Motion Sensor (SMS)
  • Ambient light sensing
  • Keyboard backlighting
  • Status indicator light (SIL) management
  • Battery status indicator lights
  • Selecting an external (instead of internal) video source for some iMac displays

How to know if you need to reset the SMC:

These symptoms might mean that an SMC reset is necessary:

  • Your computer’s fans run at high speed, even though it isn’t under heavy usage and is properly ventilated.
  • The keyboard backlight behaves incorrectly.
  • The status indicator light, if present, behaves incorrectly.
  • Battery indicator lights, if present, behave incorrectly on Mac notebooks with a non-removable battery.
  • The display backlight doesn’t respond correctly to ambient light changes.
  • Your Mac doesn’t respond when you press the power button.
  • Your Mac notebook doesn’t respond properly when you close or open the lid.
  • Your Mac sleeps or shuts down unexpectedly and you can’t turn it back on.
  • The battery doesn’t charge properly.
  • Your MacBook or MacBook Pro doesn’t charge through its built-in USB-C port.
  • Your MacBook or MacBook Pro doesn’t recognize external devices that are connected to its built-in USB-C port.
  • The MagSafe power adapter LED, if present, doesn’t indicate the correct charging activity.
  • Your Mac performs unusually slowly, even though its CPU isn’t under an abnormally heavy load.
  • A Mac that supports target display mode doesn’t switch into or out of target display mode as expected, or it switches into or out of target display mode at unexpected times.
  • The illumination around the I/O ports on a Mac Pro (Late 2013) doesn’t turn on when you move the computer.

Method

Before you reset the SMC:

Try each of these steps in this order before you reset the SMC. Test the issue after each step to see if the issue still occurs.

  1. If your Mac isn’t responding, press and hold the power button until it shuts down. You’ll lose unsaved work in any open applications. Then press the power button again to turn on your Mac.
  2. Press Command-Option*-Escape to force quit any application that’s not responding.
  3. Put your Mac to sleep by choosing Apple () menu > Sleep. Wake the computer after it’s gone to sleep.
  4. Restart your Mac by choosing Apple menu > Restart.
  5. Shut down your Mac by choosing Apple menu > Shut Down, then press the power button again to turn on your Mac.

If you’re using a Mac notebook that’s having power or battery issues, follow these steps:

  1. Unplug the power adapter from your Mac and the electrical outlet for several seconds, then plug it back in.
  2. Choose Apple menu > Shut Down and wait for your Mac to shut down.
  3. Remove and re-insert the battery if it’s removable.
  4. Press the power button again to turn on your Mac.

If the issue still isn’t resolved, you might need to reset the SMC using the steps below.

How to reset the SMC on Mac notebooks:

If your Mac notebook has the Apple T2 Security Chip, skip ahead to the T2 section.

To reset the SMC on a Mac notebook, first determine whether the battery is removable. Most older Mac notebooks have removable batteries. Mac notebooks that have nonremovable batteries include MacBook Pro (Early 2009 and later), all models of MacBook Air, MacBook (Late 2009), and MacBook (Retina, 12-inch, Early 2015 and later).

If the battery is nonremovable:

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  1. Choose Apple menu > Shut Down and wait for your Mac to shut down.
  2. Press Shift-Control-Option on the left side of the built-in keyboard, then press the power button at the same time. Hold these keys and the power button for 10 seconds. If you have a MacBook Pro with Touch ID, the Touch ID button is also the power button.
  3. Release all keys.
  4. Press the power button again to turn on your Mac.

If the battery is removable:

  1. Shut down your Mac.
  2. Remove the battery. If you need help removing the battery, contact an Apple Authorized Service Provider or Apple Retail Store.
  3. Press and hold the power button for 5 seconds.
  4. Reinstall the battery.
  5. Press the power button again to turn on your Mac.

How to reset the SMC on Mac desktop computers

If your Mac desktop computer has the Apple T2 Security Chip, skip ahead to the T2 section.

Follow these steps for iMac, Mac mini, Mac Pro, and Xserve.

  1. Choose Apple menu > Shut Down and wait for your Mac to shut down.
  2. Unplug the power cord.
  3. Wait 15 seconds.
  4. Plug the power cord back in.
  5. Wait 5 seconds, then press the power button again to turn on your Mac.

For Intel-based Xserve computers that aren’t responding, you can shut down locally or by using remote commands. You can also press and hold the power button for 5 seconds.

How to reset the SMC on a Mac that has the Apple T2 Security Chip

Follow these instructions for Mac computers that have the Apple T2 Security Chip.

Manual Pram Reset Mac Pro 2009 Download

Manual Pram Reset Mac Pro 2009

Mac desktop computers with the T2 chip

Try this first:

  1. Choose Apple menu > Shut Down and wait for your Mac to shut down.
  2. Press and hold its power button for 10 seconds.
  3. Release the power button, then wait a few seconds.
  4. Press the power button again to turn on your Mac.

If that doesn’t resolve the issue, follow these steps:

  1. Choose Apple menu > Shut Down and wait for your Mac to shut down.
  2. Unplug the power cord.
  3. Wait 15 seconds.
  4. Plug the power cord back in.
  5. Wait 5 seconds, then press the power button again to turn on your Mac.

Mac notebook computers with the T2 chip

Try this first:

  1. Choose Apple menu > Shut Down and wait for your Mac to shut down.
  2. Press and hold the power button for 10 seconds.
  3. Release the power button, then wait a few seconds.
  4. Press the power button again to turn on your Mac.

If that doesn’t resolve the issue, follow these steps:

  1. Choose Apple menu > Shut Down and wait for your Mac to shut down.
  2. Press and hold the right Shift key, the left Option key, and the left Control key for 7 seconds. Your Mac might turn on and show the Apple logo on its display. Keep holding those keys while you also press and hold the power button for another 7 seconds. If your Mac turned on when you first pressed the keys, it turns off at this point.
  3. Release all three keys and the power button, then wait a few seconds.
  4. Press the power button again to turn on your Mac.

Sources

If your MacBook Pro, MacBook Air or iMac starts acting in a strange way without apparent reason, there is something you can do to get the issues resolved. It is likely that you need to perform SMC and PRAM reset. Before we go through the steps to reset them, let’s take a look at what SMC & PRAM are.

SMC & PRAM – What are they

In the Intel based Mac, SMC (which stands fro System Management Controller) is a chip that plays a part in many physical parts of the Mac including led indicators, cooling fan and keyboard. It is also linked to a connection with the MacBook sleep mode and its power supply.

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PRAM stands for Parameter Random Access Memory and it keeps information about computer configuration such as mouse, volume, date, rime and other settings. PRAM works with a small battery so whenever the system is turned off, there is no information lost.

Why is it a good ideal to reset SMC & PRAM and when should you do it?

It is possible to reset reset SMC and PRAM whenever needed, specially if your computer is not working as it should. If the below is happening, a reset may help.

  • If you are experiencing shutdown issues (slow shutdown), or the MacBook is running slow. If the external monitor or trackpad is not detected.
  • If the battery status light or keyboard backlight doesn’t work or is not working as it should.
    You can also reset SMC & PRAM if the MacBook Pro doesn’t turn and the charger is bliking orange or it doesn’t connect to WiFi.
  • If the keyboard or colume control are not working well or there is higher CPU usage when you are browsing the internet.

In most cases, resetting SMC & PRAM will get the issue resolved.

How to reset SMC

Before resetting SMC, close all the applications and reboot your computer. This could solve the issue. The process to reset SMC depends on the kind of computer that you are using.

MacBook Pro (removable battery)

  1. The first thing you need to do in the case of a MacBook Pro is to shutdown your computer.
  2. Then unplug the Power adapter and take the battery out
  3. Hold the Power button down for 5 seconds
  4. Replace the battery and plug in the power adapter
  5. Now you can start the computer

MacBook Pro/ MacBook Air (no removable battery)

  1. In this case, you also start by shutting down the computer.
  2. Then plug in the power adapter
  3. Press and hold the shift, control, option and power buttons at the same time for 10 seconds.
  4. Let go of all the keys simultaneously and switch on the computer

Mac Pro, Intel based – iMac, Mac Mini, XServe

Manual Pram Reset Mac Pro 2009 Manual

  1. Shut down the computer
  2. Unplug the power card and allow 15 seconds
  3. Plug the power card and switch on the computer

How to reset PRAM

Manual Pram Reset Mac Pro 2009 Model

  1. Shut down the computer
  2. Click the Power button
  3. Before the grey color screen is shown, press and hold Command + Option + P + R keys simultaneously.
  4. Hold down these keys until the MacBook restarts and then you will hear the startup sound.
  5. Release the keys. Once you have reset PRAM, keep in mind that settings like disk caches, volume, time, keyboard and mouse preferences, will also be reset.