iMac (500MHz G3, Summer 2001) – Full information

The iMac (500MHz G3, Summer 2001) in Indigo and Snow was released in summer of 2001 with almost the same technical specifications as the iMac G3/500 at the beginning of the year. It features 500 MHz PowerPC 750cx (G3) processor with a 256k on-chip level 2 cache, 64 MB of RAM, a 20.0 GB Ultra ATA hard drive, a slot loading 24X CD-ROM or 8X/4X/24X CD-RW drive, ATI Rage 128 Ultra (AGP 2X) graphics with 16 MB of VRAM and Firewire “400” ports not to mention the in-built speakers, a 15-inch CRT display and AirPort support.

iMac (500MHz G3, Summer 2001)

  • Introduced on July 18, 2001 / October 1, 2001.


  • Code name: “Kiva”.
  • Processor Speed: 500 MHz.
  • Processor Architecture: 32-bit.
  • Processor type: PowerPC 750cx Sidewinder “G3”.
  • Cores: 1.
  • On-Board Ram: 64 MB or 128 MB (Expandable to 1 GB (512 MB supported by Apple).
  • Video: 15-inch (13.8-inch viewable) shadow-mask CRT screen with 1024 x 768 pixel resolution.
  • Graphics: ATI Rage 128 Ultra (AGP 2X) video with 16 MB of VRAM.
  • Storage: 20 GB, 5400-rpm ATA-3 up to 128 GB Hard Drive Supported.
  • Input\Output: 2x USB 1.1, 2x FireWire 400 2x Headphone mini-jacks, Analog audio input mini-jack, Built-in stereo speakers.
  • Optical drive: 4X/8X/24X CD-RW.
  • Internet \ Wireless connection: Optional 11 Mbit/s AirPort 802.11b (adapter required), 10/100 BASE-T Ethernet, 56k modem 4 Mbit/s.
  • Preinstalled OS: 9.1 / 10.0.4ю OS max. upgrade: 10.4.11.
  • Dimensions: 15.0 x 15.0 x 17.1 inch.
  • Weight: 34.7 lb.
  • Colors: Indigo, Snow.

Apple Orders, Discontinuation, Price

Model identifier:

  • PowerMac4,1.

Model No:

  • M5521 (EMC 1857).

Apple Order number:

  • M8582LL/A – Indigo, M8490LL/A – Snow.


  • January 7, 2002 (basic configuration)
  • March 18, 2003 (low-end configuration).


  • $799, $999.

Advice and Troubleshooting

In Mac Help, you will find a great deal of troubleshooting advice, including information to help you solve problems with the following matters:

  • Connecting to the Internet
  • Using software installation and restore discs
  • Changing your computer’s settings
  • Printing
  • And more.

Click the Finder icon in the Dock, then choose Mac Help from the Help menu. Type a question in the search window (for example, type “How do I eject a disc?”) and click Ask.

Switching between Mac OS X and Mac OS 9

Your iMac (500MHz G3, Summer 2001) is set to use Mac OS X. Most applications made for Mac OS 9 will
work in the Mac OS X Classic environment. Just open the application as you normally would. You can also start up your computer using Mac OS 9.

To set your computer to use Mac OS 9:

  • Choose System Preferences from the Apple Menu in Mac OS X.
  • Click the Startup Disk icon to open the Startup Disk pane.
  • Select the Mac OS 9 folder as your startup disk. If the icons are dimmed, click the padlock icon and enter the password you chose when you first set up Mac OS X.
  • Click Restart.

To set your computer to use Mac OS X again:

  • Choose Control Panels from the Apple Menu.
  • Open the Startup Disk control panel.
  • Click the triangle next to the hard disk that contains your operating system folders.
  • Select the Mac OS X System as your startup disk.
  • Click Restart.

If the computer won’t respond:

  • First, make sure the mouse and keyboard are connected.
  • Unplug and then plug in the connectors and make sure they are secure.
  • Try to cancel what the computer is doing.
  • Try to force problem applications to quit. Hold down the Option and Command keys, then press the Esc key.
  • Select the application and click Force Quit.

If the computer still doesn’t respond, restart it:

  • Hold the Power button on the computer for five seconds. When the computer turns off, press the Power button again to restart it.
  • If that doesn’t work, press the Reset button.
  • If that doesn’t work, unplug the power cord from the computer.
  • Then plug the power cord back in and press the Power button on the computer to turn it on.

If the problem occurs frequently when you use a particular application: Check with the application’s manufacturer to see if it is compatible with your computer.

If the problem occurs frequently with many applications: You may need to reinstall your system software. Choose Mac Help from the Help menu and type “install system software” for more information.

If you see a flashing question mark during startup: If the computer doesn’t start up after a delay, hold down the Option key and restart your computer.

When your computer starts up, click the hard disk icon, then click the arrow.

After the computer starts up, Open System Preferences and click Startup Disk. Select a local Mac OS X System folder. If the problem occurs frequently: You may need to reinstall your system software. Choose Mac Help from the Help menu and type “install system software” for more information.

If the computer won’t turn on or start up:

  • Make sure the power cord is connected.
  • Make sure both ends of the power cord are plugged in securely.
  • Make sure the power cord is plugged into a powered electrical outlet.
  • If your computer is plugged into a power strip, make sure the power strip is turned on.


  • There are three configurations of the iMac G3/500 (Summer 2001 – Indigo/Snow) model. The low-end model introduced on October 1, 2001 has only 64 MB of RAM and a 24X CD-ROM and was available only in Indigo for $799. But it survived the discontinuation of top models and got its RAM upgraded up to 128 MB as well as the OS (up to MacOS 10.2).
  • The original model, opening the line-up on July 18, 2001, has 128 MB of RAM and an 8X/4X/24X CD-RW drive and sold for US$999.


  • Where to sell my old iMac? – Here is the answer – Get the best quote from iGotOffer!: Sell old iMac now!
  • iMac G3 Slot-Loading DV Special Edition (SE) 500 Hz is the top model of the “Summer Series” line up with the 500 Hz processor, 30 GB hard drive, 128 MB RAM, ATI Rage 128 Pro video card with 8 MB of VRAM and a 4X DVD-ROM.

iMac G3 500 Mhz, video published by Macintoshmani12 on March 11, 2012.


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