iMac G5/2.0 17 Inches (ALS)

The iMac G5/2.0 with ambient light sensor got also a faster processor. In every other aspect it is identical to the desktops of the G5 family. The iMac G5/2.0 17 inches (ALS) is the all-in-one desktop computer in a polycarbonate casing behind the 17” screen, mounted on an aluminum stand. The casing is approximately 2 inches deep and it can also be mounted on a wall or kiosk, for it meets the VESA standards. The ambient light sensor installed in the edge of the screen dims the sleep indicator light The iMac G5/1.8 17 inches (ALS) features a 2.0 GHz PowerPC 970 (G5) processor with an optimized AltiVec “Velocity Engine” vector processing unit, 512 MB of SDRAM, an 160 GB Serial ATA hard drive (7200 RPM), a slot-loading 8X “Super Drive”, ATI Radeon 9600 graphics with 128 MB of DDR SDRAM (AGP 8X), an ambient light sensor and built-in stereo speakers, as well as 2 Firewire “400” and 3 USB 2.0 ports. It also supports AirPort Extreme (802.11g) and Bluetooth, but the cards are optional and installed at the factory. The cooling system is CPU controlled and the in-built speakers are mounted beneath the 17 inches screen for the sound to bounce off the desk or other surface. The speakers’ grills also work as the vent ones. The iMac G5/1.8 is shipped with Apple Keyboard and Apple mouse from the box.

iMac G5/2.0 17 Inches (ALS)

Introduced on: May 3, 2005.


  • Codename: “Q45C”, “Q45D”.
  • Processor Speed: 2.0 GHz.
  • Processor Architecture: 64-bit.
  • Processor type: PowerPC G5 970fx (POWER4).
  • Processor upgrade: soldered.
  • Cores: 1.
  • On-Board Ram: 512 MB, DDR 400MHz.
  • Video: 17 inches TFT active matrix LCD, 1440 x 900/1680 x 1050 pixels max resolution, viewing angle: 120° horizontal and 90° degrees vertical.
  • Graphics: ATI Radeon 9600 graphics with 128 MB of DDR SDRAM (AGP 8X).
  • Storage: 160 GB, 7200-rpm Ultra ATA-66 up to 128 GB Hard Drive Supported.
  • Input\Output: 3x USB 2.0, 2x Firewire 400, built-in microphone, built-in speakers, audio out, audio input/output.
  • Optical drive: 8X “Super Drive”.
  • Internet \ Wireless connection: Integrated Airport Extreme 802.11b/g, Gigabit Ethernet Optional 56k V.92 USB modem, Bluetooth 2.0+EDR, built-in infrared (IR) receiver for Apple Remote.
  • OS: Preinstalled OS: 10.4. OS max. upgrade: 10.5.8.
  • Dimensions: 16.9 x 16.8 x 6.8 inch.
  • Weight: 18.5 lb.

How to Transfer Information to iMac G5

You can use the Setup Assistant to automatically transfer information from another Mac to your new iMac G5. To transfer information, make sure of the following:

  • Your other Mac must have built-in FireWire and support FireWire Target Disk Mode.
  • Your other Mac must have Mac OS X v10.1 or later installed.
  • You must have a FireWire cable to connect the two computers.

The Setup Assistant will take you through the process of transferring your information – just follow the onscreen instructions. Transferring information to your iMac G5 does not affect the information on your other Mac. Using the Setup Assistant, you can transfer:

  • User accounts, including preferences and email.
  • Network settings, so your new computer is automatically set up to work with the same network settings as your other Mac.
  • Applications folder so that the applications you used on your other Mac are now on your new iMac G5 (you may have to reinstall some of the applications you transfer).
  • Files and folders stored on your hard disk.
  • If you don’t use the Setup Assistant to transfer information when you first start up your iMac G5, you can do it later using the Migration Assistant. Open the Applications folder, open Utilities, and double-click the Migration Assistant icon.

Note: If you transfer information later using the Migration Assistant, make sure File Vault is turned off on the older computer. To turn off File Vault, choose Apple Menu > System Preferences, click Security, and follow the onscreen instructions.

What to Do When You Have Finished Using Your iMac G5

When you have finished working with your iMac G5, you can put your computer to sleep or shut it down.

Put Your iMac G5 to Sleep to Save Energy – If you will be away from your iMac G5 for less than a few days, put the computer to sleep. When the computer is in sleep, its screen is dark and a small white light below the lower-right corner of the display pulsates. You can quickly wake the computer and bypass the startup process.

To put the computer to sleep quickly, do one of the following:

  • Choose Apple Menu > Sleep.
  • Press the power button on the back of the computer.
  • Choose Apple Menu > System Preferences, click Energy Saver, and set a sleep timer.

To wake the computer, press any key on the keyboard. When the computer wakes from sleep, your applications, documents, and computer settings are exactly as you left them.

Shut Down Your iMac G5: If you will not use your iMac G5 for more than a few days, shut it down.

  • Choose Apple Menu > Shut Down.

Warning: Shut down your iMac G5 before moving it. Moving your computer while the hard disk is spinning can damage the hard disk, causing loss of data or the inability to start up from the hard disk.

Apple Orders, Discontinuation, Price

Apple Model No: A1058 (EMC 2055).

Apple Order number: M9844LL/A.

Discontinued: October 12, 2005 .

Price: $1499.


  • The iMac G5 was shipped with a special CD to run the Apple Hardware Test under emergency.
  • Some users reported, their iMacs started smelling burning plastics and then wouldn’t wake up from the sleep. It was the midplane that caused the trouble.


  • Looking where to sell your old iMac? Trade in used iMac at iGotOffer for fast cash! Instant quote, free shipping, fast and secure payment – Used iMac for sale.

Apple iMac G5 17″ Desktop 1.8Ghz/512mbRAM/80Gb HD. Video published by IvoryFirefly
IvoryFirefly on October 23, 2011


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