TITLE
    Energy Saving Control Panels: Description & Compatibility
Article ID:
Created:
Modified: 		18127
7/10/95
10/20/00
TOPIC

    What is the difference between all the different energy-saving control panels, and how do I know when to use them?

DISCUSSION

    Energy Related Control Panels Overview

    There are four different energy-related control panels in System 7.5.

    • Auto Power On/Off: Turns the computer ON and OFF at specified times.
    • CPU Energy Saver: Turns the computer OFF at specified times, but not ON.
    • Screen: Puts an internal monitor into energy-saving mode.
    • Energy Saver 1.1: Puts an external monitor into energy-saving mode.
    • Energy Saver 2.0: Combines functionality of CPU Energy Saver, Energy Saver 1.1, and Auto Power On/Off. Energy Saver 2.0 is compatible only on PCI-based Power Macintosh computers.

    These control panels only work on certain Macintosh computers. In addition, the Energy Saver 1.1 control panel requires an Energy Star-compliant monitor as well as a Macintosh computer compatible with this software. See the chart at the end of this article for a list of compatible systems.

    Although many Energy Saver control panels are compatible with many Macintosh Performa computers, not all Energy Saver control panels are bundled with Macintosh Performa computers. Many Macintosh Performa computers include modems and MegaPhone software, which allow you to use your computer as an answering machine. If you have installed Auto Power On/Off, it is possible for your computer to be inadvertently shut down while your computer is set to answer phone messages. To avoid this, Macintosh Performa computers do not ship with the Auto Power On/Off control panel.

    None of the energy-related control panels mentioned here are supported on PowerBook or PowerBook Duo systems.

    Auto Power On/Off

    This feature lets you set your Macintosh computer to power ON and OFF at a pre-determined time, on a daily basis, or for one particular day. It also has a check box labelled "Automatically restart after power failure". If you check this box and the power goes off, the computer automatically restarts. You can use the Auto Power On/Off feature in conjunction with other System 7.5 features. For example, you could set your system to power on at night and run an AppleScript that re-indexes all of your database files or backs up your hard drive.

    This control panel can only be used on computers that can be turned off by using the Shut Down command (soft power off) and that have the "Cuda" ADB controller chip or a version of the Motorola 68HC05 microcontroller chip. The chart at the end of this article lists the Macintosh models this control panel is compatible with.

    Note: Not included with all system software prior to System 7.5

    CPU Energy Saver

    This feature lets you set your Macintosh to turn OFF at a specified time. However, you cannot set your system to turn ON with this feature. It can only be used on computers that can be turned off by using the Shut Down command (soft power off), such as the Quadra 700. This feature is only installed by System 7.5 if Auto Power On/Off is NOT compatible with the Macintosh and CPU Energy Saver IS compatible with the Macintosh.

    Note: This control panel did not ship with system software older than System 7.5, although it was released separately before System 7.5. The CPU Energy Saver is not available from Apple software updates online services.

    Energy Saver 1.1

    This feature lets you set your Macintosh to put external monitors into sleep mode. It was originally designed to work with the built-in video of Macintosh LC III, Quadra 610-950, Power Macintosh, and Performa 450-467, 63x, 611x.

    This feature requires an Energy Star-compliant monitor. Compliant models include:
    • Apple Color Plus 14-in. Display
    • Macintosh Color Display (newer M1198LL/B version)
    • Apple AudioVision 14 Display
    • Apple Multiple Scan 14, 15, 17, and 20 Displays

    Note: Not included with system software prior to System 7.5, although it was made available separately.

    This feature did not come preinstalled on some Performa 630- and 6110-series systems and was not included on the backup CDs that shipped with these systems. Customers who want the Energy Saver software can copy it from the disk that comes with the Multiple Scan 15 Display. (Be sure not to copy the Display Enabler extension, since the Performa 630- and 6110-series systems have the Display Enabler's functionality built into the hardware.)

    If Energy Saver is installed on a computer that has an incompatible monitor, the monitor goes black after the specified inactivity period has passed, but the incompatible monitor is NOT in low power mode, and therefore is NOT saving energy. Monitors that do not support this Energy Saver function, or monitors that use video cards, are not harmed by the installation of this control panel, but they do not save energy with Energy Saver installed.

    The Energy Saver control panel has a slider bar to adjust the monitor inactivity period, from 15 to 60 minutes. Energy Saver can be turned on by clicking the check box nearest the slider bar. The settings take effect immediately; you do not need to restart the computer.

    When the Apple Energy Star-compliant monitor has been inactive (that is, you have not used the mouse or keyboard) for the time specified in the Energy Saver control panel, the screen of the monitor goes black. This indicates that the monitor is in low-power mode, and is saving energy. The computer is still functioning.

    The monitor returns to a fully active state approximately 20 seconds after you use the keyboard or mouse. You hear a number of beeps while the screen is updated to reflect its current state. (The beep volume cannot be adjusted; it is independent of all system sound controls.)

    The Energy Saver control panel is available for download from Apple Software Updates sites. The software is named "Monitor Energy Saver". After download and decompression, you will have the Energy Saver control panel.

    Screen

    This control panel lets you set your Macintosh computer to put internal monitors into sleep mode.

    The Screen control panel can only be used on certain "all-in-one" Macintosh systems, such as the LC/Performa 500-series.

    This feature shipped with some Performa 630-series systems and appears to work, but does not really save energy. The Screen control panel should be removed from these systems. Use the Energy Saver control panel in its place.

    Energy Saver 2.0

    This control panel combines functionality of CPU Energy Saver, Energy Saver 1.1, and Auto Power On/Off. Energy Saver 2.0 is compatible only on PCI-based Power Macintosh computers, which includes the Power Macintosh 5400, 7200, 7500, 7600, 8500, and 9500 series computers.

    Note: Energy Saver 2.0 is available only in System 7.5.2 or later when used on a PCI-based Power Macintosh computer.

    When To Use Which Energy-Saving Control Panels

    d

    For Monitors
    For Computer
    Energy Saver
    Screen
    Auto Power On/Off
    CPU Energy
    Saver
    Compact Macintosh Systems
    Macintosh 128K, 512K, 512Ke, XL
    No
    No
    No
    No
    Macintosh Plus, SE, SE/30
    No
    No
    No
    No
    Classic, Classic II
    No
    No
    No
    No
    Color Classic, Color Classic II
    No
    Yes
    Yes
    OK
    d
    Macintosh II Systems
    Macintosh II, IIx, IIfx
    Yes
    No
    No
    Yes
    Macintosh IIcx, IIci
    Yes
    No
    No
    Yes
    Macintosh IIsi, IIvi, IIvx
    Yes
    No
    Yes
    OK
    d
    Macintosh LC Systems
    Macintosh LC, LC II
    No
    No
    No
    No
    Macintosh LC III, LC 475
    Yes
    No
    No
    No
    Macintosh LC 520, 550, 575, 580
    No
    Yes
    Yes
    OK
    Macintosh LC 630
    Yes
    No
    Yes
    OK
    d
    Macintosh Centris & Quadra Systems
    Macintosh Quadra 605
    No
    No
    No
    No
    Macintosh Centris/Quadra 610
    Yes
    No
    No
    No
    Macintosh Quadra 630
    Yes
    No
    Yes
    OK
    Macintosh Centris/Quadra 650
    Yes
    No
    No
    Yes
    Macintosh Centris/Quadra 660AB
    Yes
    No
    No
    No
    Macintosh Quadra 700
    No
    No
    No
    Yes
    Macintosh Quadra 800
    Yes
    No
    No
    Yes
    Macintosh Quadra 840AV, 950
    Yes
    No
    Yes
    OK
    Macintosh Quadra 900
    No
    No
    Yes
    OK
    d
    Macintosh Performa Systems
    Performa 200
    No
    No
    No
    No
    Performa 250, 275
    No
    Yes
    Yes
    OK
    Performa 400, 405, 410, 430
    No
    No
    No
    No
    Performa 450, 460, 466, 467
    Yes
    No
    No
    No
    Performa 475, 476
    Yes
    No
    No
    No
    Performa 520, 550, 560
    No
    Yes
    Yes
    OK
    Performa 570-, 580-series
    No
    Yes
    Yes
    OK
    Performa 600
    Yes
    No
    Yes
    OK
    Performa 630-, 640-series
    Yes
    No
    Yes
    OK
    Performa 5200-series
    No
    Yes
    Yes
    OK
    Performa 6100-series
    Yes
    No
    No
    No
    Performa 6200-series
    Yes
    No
    OK (2)
    No
    Performa 6300-series
    Yes
    No
    OK
    Yes
    Performa 6400-series
    Yes (2)
    No
    No (1)
    No
    d
    Power Macintosh Systems
    Power Macintosh 5200/75 LC
    No
    Yes
    Yes
    OK
    Power Macintosh 5260
    No
    Yes
    Yes
    OK
    Power Macintosh 5400
    Yes (2)
    No
    No (1)
    No
    Power Macintosh 6100/60, 6100/66
    Yes
    No
    No
    No
    Power Macintosh 6200/75
    Yes
    No
    Yes
    No
    Power Macintosh 7100/66
    Yes
    No
    Yes
    OK
    Power Macintosh 7100/80
    Yes
    No
    Yes
    No (1)
    Power Macintosh 7200 Series
    Yes (2)
    No
    No (1)
    No
    Power Macintosh 7500 Series
    Yes (2)
    No
    No (1)
    No
    Power Macintosh 7600 Series
    Yes (2)
    No
    No (1)
    No
    Power Macintosh 8100/80
    Yes
    No
    Yes
    OK
    Power Macintosh 8100/100, 8100/110
    Yes
    No
    Yes
    No (1)
    Power Macintosh 8500
    Yes (2)
    No
    No (1)
    No
    Power Macintosh 9500
    Yes (2)
    No
    No (1)
    No
    d
    Macintosh Workgroup Servers
    Workgroup Server 95
    Yes
    No
    Yes
    No
    Workgroup Server 8150
    Yes
    No
    Yes
    No
    Workgroup Server 9150
    Yes (2)
    No
    No (1)
    No
    Notes:
    Notes:
    1 - These Power Macintosh computers included the Connectix Desktop Utility (CDU) software which made these units Energy Star compliant.
    2 - Use Energy Saver 2.0.x included with System 7.5.2 for this function.

    This article can help you locate the software update mentioned here:
  • Article 14724: " Where To Find Apple Software Updates " - Lists online services for free Apple software updates.


Document Information
Product Area: Mac OS System Software
Category: General OS
Sub Category: General Topics
Keywords: supt, ksts, sys75, ktable, kalley

Copyright © 2000 Apple Computer, Inc. All rights reserved.