Intel-based iMac, Intel-based Mac mini: How to reset the Syst

Intel-based iMac, Intel-based Mac mini: How to reset the System Mana...
http://docs.info.apple.com/article.html?artnum=303446
Intel-based iMac, Intel-based Mac mini: How to reset the System
Management Controller
The System Management Controller (SMC) is a chip on the logic board that controls all power functions for your
computer. If your computer is experiencing any power issue, resetting the SMC may resolve it. The SMC
controls several functions, including:
Telling the computer when to turn on, turn off, sleep, wake, idle, and so forth.
Handling system resets from various commands.
Controlling the fans.
Note that resetting the SMC does not reset the PRAM. Resetting the SMC will not resolve issues in which your
computer is unresponsive—in these situations, restarting your computer will generally suffice. If your computer
isn't responding, perform these steps one at a time, in this order, until the issue has been resolved:
1. Force Quit (Option-Command-Escape).
2. Restart (Control-Command-Power).
3. Force Shut Down (press the power button for 10 seconds).
Resetting the SMC can resolve some computer issues such as not starting up, not displaying video, sleep
issues, fan noise issues, and so forth. If your computer still exhibits these types of issues after you've restarted
the computer, try resetting the SMC. To reset the SMC on an iMac (Early 2006), iMac (Mid 2006), iMac (Late
2006), or Mac mini (Early 2006):
1. From the Apple menu, choose Shut Down (or if the computer is not responding, hold the power button
until it turns off).
2. Unplug all cables from the computer, including the power cord and any display cables.
3. Wait at least 15 seconds.
4. Plug the power cord back in, making sure the power button is not being pressed at the time. Then
reconnect your keyboard and mouse to the computer.
5. Press the power button on the back to start up your computer.
The iMac (Early 2006) and later models do not have a button on the main logic board for resetting the SMC,
which eliminates the need to remove the computer's cover to reset it (as required for some earlier models).
Keywords: ktech kimacintel kintel kmacmini
Article ID: 303446
Date Created: March 08, 2006
Date Modified: September 06, 2006
Support
Visit the Apple Store online (1-800-MY-APPLE), visit a retail location, or find a reseller.
Copyright © 2007 Apple Inc. All rights reserved.
1 of 1
Terms of Use
|
Site Map
Privacy Policy
7/23/2007 2:16 PM