Apple: PowerBook 100 through PowerBook 5300: Resetting Power Management Unit (PMU)

PowerBook 100 through PowerBook 5300: Resetting Power Management Unit (PMU)

0000-00-00 00:00:00 / PowerBook

This document describes the PowerBook Power Manager and explains how to reset it. Resetting the power manager also resets the date and time. After the reset, on some PowerBooks, the system clock is set to 00:00 on 1 January 1904 This document refers to Apple products manufactured before November 1997. Click here for products manufactured after that date..

Similiar PowerBook News:

• Fluorescent Lamp LCDs require a warm-up period
• Battery Update : Information and Download
• Mac OS X 10.4.3 or later: Sudden Motion Sensor information doesn't appear in System Profiler or third-party utilities
• Apple USB Modem: Frequently asked questions (FAQ)
• Backlit LCDs require a warm-up period
• Mac OS X reports hard drive capacity in binary math, hard drive manufacturers report capacity in base 10 math
• Macintosh: Is my hard disk missing space?
• Power or Start Up Quick Assist
• Sudden Motion Sensor: Advanced Tips
• How to use your PowerBook G4, MacBook or MacBook Pro with the display closed and a Bluetooth keyboard or mouse
• Keynote 3: Screen flashes during slideshow playback
• Updating battery firmware for PowerBook G4 (15-inch Double-Layer SD) and some earlier PowerBooks
• About the PowerBook G4 (15-inch 1.67/1.5GHz) Memory Slot Repair Extension Program
• How to use your PowerBook G4 or MacBook Pro with the display closed and a Bluetooth keyboard or mouse
• How to find the serial number for your Apple hardware product
• Mac OS: Versions, builds included with PowerPC Macs (since 1998)
• PowerBook G4 (Double-Layer SD) OPTION Globetrotter GSM/GPRS card causes two AirPort ports to appear
• Some PowerBook SuperDrives won't work with 8x DVD-R media
• Mac OS X: Disk Appears Dimmed (or "Grayed Out") in the InstallerMac OS X: Disk Appears Dimmed (or "Grayed Out") in the Installer
• Using nonstandard discs in optical drivesUsing nonstandard discs in optical drives
• PowerBook G4 (15-inch FW 800): Faint White Spots in DisplayPowerBook G4 (15-inch FW 800): Faint White Spots in Display
• Apple Portables and AirPort Express: How to care for your AC PlugApple Portables and AirPort Express: How to care for your AC Plug
• None of the keys on my keyboard workNone of the keys on my keyboard work
• Troubleshooting: My computer won't turn onTroubleshooting: My computer won't turn on
• Troubleshooting: My computer displays no videoTroubleshooting: My computer displays no video
• My Apple USB mouse doesn't workMy Apple USB mouse doesn't work
• Some of the keys on my keyboard don't workSome of the keys on my keyboard don't work
• How to use your PowerBook G4 with the display closed and a Bluetooth keyboard or mouseHow to use your PowerBook G4 with the display closed and a Bluetooth keyboard or mouse
• Sudden Motion Sensor and video editing performanceSudden Motion Sensor and video editing performance
• SuperDrive: Mac OS X - How to burn data DVD-R discSuperDrive: Mac OS X - How to burn data DVD-R disc
• How to use FireWire target disk modeHow to use FireWire target disk mode
• Burning DVD±R and DVD±RW media with iLife '05 - compatible computersBurning DVD±R and DVD±RW media with iLife '05 - compatible computers
• Processor speeds and bus speeds of Macintosh computersProcessor speeds and bus speeds of Macintosh computers
• Mac OS 8 and 9 compatibility with Macintosh computersMac OS 8 and 9 compatibility with Macintosh computers
• Apple Power Supplies: Changing voltage settingsApple Power Supplies: Changing voltage settings
• Using Restore Discs with Mac OS X 10.2 through 10.3.3Using Restore Discs with Mac OS X 10.2 through 10.3.3
• Burning DVD±R and DVD±RW media with iLife '05 - compatible computers
• Gravure de DVD±R et de DVD±RW avec des ordinateurs compatibles avec iLife ’05
• Comment utiliser votre PowerBook G4 avec le couvercle fermé et un clavier ou une souris Bluetooth
• Comment utiliser votre PowerBook G4 avec le couvercle fermé
• Certaines touches de mon clavier USB Apple ne fonctionnent pas
• Aucune touche de mon clavier ne fonctionne
• PowerBook G4 : légers points blancs sur l'écran
• Message “To continue booting, type 'mac-boot' and press return”
• PowerBook G4 : l'adaptateur secteur 65 W ne charge pas la batterie et l'indicateur de charge est éteint
• Mac OS X : tableau des mises à jour de firmware disponibles
• iBook video output cables/adapters and resolutions
• Burning DVD±R and DVD±RW media with iLife '05 - compatible computers
• Apple Power Supplies: Changing voltage settings
• Apple products that require an Ethernet crossover cable
• Processor speeds and bus speeds of Macintosh computers
• Using nonstandard discs in optical drives
• SuperDrive: Mac OS X - How to burn data DVD-R disc
• Burning DVD±R and DVD±RW media with iLife '05 - compatible computers
• About "Sleep" and "Deep Sleep"
• Macintosh starts up to Open Firmware or gray screen after upgrading hard drive
• Mac OS X: Disk Appears Dimmed (or "Grayed Out") in the Installer
• Using nonstandard discs in CD-ROM or DVD-ROM drives
• Macintosh Family: Batteries and Part Numbers, Part 2
• PowerBook G4 (15-inch FW 800): Faint White Spots in Display
• None of the keys on my keyboard work
• Troubleshooting: My computer won't turn on
• Troubleshooting: My computer displays no video
• My Apple USB mouse doesn't work
• Some of the keys on my keyboard don't work
• How to use your PowerBook G4 with the display closed and a Bluetooth keyboard or mouse
• Burning DVDВ±R and DVDВ±RW media with iLife '05 - compatible computers
• Sudden Motion Sensor and video editing performance
• PowerBook G4 (15-inch): DIY Instructions
• PowerBook G4 (15-inch FW 800): Technical Specifications
• PowerBook G4 (15-inch): CIP Instructions
• Mac OS 8 and 9 compatibility with Macintosh computers
• PowerBook G4 Firmware Update 4.2.9: Information and Download
• PowerBook: Power and Battery Frequently Asked Questions, Part I
• PowerBook G4, iBook G4: Troubleshooting the Slot Load Disc Drive
• About PowerBook and iBook Battery Storage Life
• "To continue booting, type 'mac-boot' and press return" Message
• PowerBook 100 through PowerBook 5300: Resetting Power Management Unit (PMU)
• About LCD display pixel anomalies
• Identifying the ports of PowerBook G4 computers

News Categories:

•   Apple
  •     Hot News
  •     New Arrivals
  •     Press Release
•   Apple AirPort
•   Apple Computer Top Garageband Documents
•   Apple Press Releases
•   Apple student weblog
•   Apple-X.net
•   Apple.com - Newest trailers
•   AppleInsider
•   AppleLust
•   AppleMatters
•   AppleSurf
•   Corante: Apple Matters
•   Doug's AppleScripts for iTunes
•   Downloads
  •     Apple Downloads
  •     Audio
  •     Business & Finance
  •     Development Tools
  •     Drivers
  •     Email & Chat
  •     Games: Action & Adventure
  •     Games: Card & Puzzle
  •     Games: Demos & Updates
  •     Games: Home & Learning
  •     Games: Kids & Learning
  •     Games: Role Playing & Strategy
  •     Games: Simulation & Sport
  •     Games: Utilities
  •     Icons, Screensavers
  •     Internet Utilities
  •     Ipod, Itunes
  •     Latest Hot Downloads
  •     Math & Science
  •     Network & Security
  •     Productivity Tools
  •     System & Disk Utilities
  •     Unix & Open Source
  •     Video
•   Games
  •     Inside Mac Games
•   ifoAppleStore
•   iPod
•   JavaBoutique Applets
•   JavaBoutique Articles
•   Knowledge Base
  •     AirPort
  •     Apple Mail
  •     DVD Player
  •     iPhoto
  •     iTunes
  •     Mac OS X
  •     PowerBook
  •     QuickTime
  •     Requested Manuals
  •     Safari
  •     Software Downloads
  •     Specification
•   Lockergnome's OS X Fanatics
•   mac and win
•   Mac Observer
•   Mac OS
  •     Mac OS 9
  •     Mac OS X and WebObjects Job Market
  •     Mac OS X Hints
  •     Mac OS X Hot Downloads
•   Mac OS X Downloads
•   MacDailyNews
•   macintosh News
•   MacInTouch
•   MacMinute.com
•   MacNETv2
•   MacNN
•   MacScripter
•   MediaMac
•   myapplemenu
•   scriptbuilders @ macscripter.net
•   The Mac Gourmet
•   The Unofficial Apple Weblog
•   TVShowsOnDVD.com News
•   Yahoo! News - Technology - Apple/Macintosh

Partners Links: