Apple Refurbished iMac G5Apple iMac G5 17in PowerPC G5 1.8GHz 1GB DDR2 150GB HDD AIO Mac OS X Retro

Apple iMac G5 17-Inch — Vintage PowerPC All-in-One (150GB)

The Apple iMac G5 17-inch packs a PowerPC G5 1.8GHz processor, 1GB DDR2 RAM, and a 150GB hard drive into Apple's landmark slim all-in-one chassis. Running Mac OS X, this is an authentic collector's piece for Apple enthusiasts and vintage computing aficionados. Backed by a 12-month Reboot IT warranty.

Key Benefits

• Iconic Apple design: The iMac G5 pioneered the slim all-in-one concept that defined Apple hardware for decades
• 150GB hard drive: Larger storage than the base model — more room for period Mac OS X software and media
• DDR2 memory: 1GB DDR2 RAM for improved memory bandwidth over the first-generation DDR configuration
• PowerPC G5 processor: IBM-built 1.8GHz G5 chip — a historically significant architecture that preceded Apple Silicon
• Mac OS X compatible: Runs Mac OS X Tiger (10.4) and Leopard (10.5) — ideal for period-correct software
• Complete system: Self-contained unit with integrated speakers, optical drive, and USB ports

Performance in Use

This revised iMac G5 features DDR2 memory and a 150GB hard drive — a meaningful step up from the base configuration. Running Mac OS X Tiger or Leopard, it handles the full iLife suite, AppleWorks, period-compatible web browsing, and Classic Mac applications with ease. The 17-inch display has been tested and performs as expected for a machine of this era.

For collectors, this unit represents the second generation of the iMac G5 line — the model that refined the original design with improved memory architecture before Apple's historic switch to Intel processors in 2006. It occupies a pivotal moment in Apple history, and a working unit in good condition is increasingly rare.

This machine is ideal as a collector's display piece, a working vintage computing station running period software, or for developers maintaining PowerPC-specific applications. It is not compatible with modern macOS and is not recommended as a primary work computer.

Tech Specifications

Is It Right for You?

Condition Grades

Frequently Asked Questions

What version of Mac OS X does it run?

The iMac G5 supports Mac OS X up to version 10.5 Leopard (PowerPC). It does not support Intel-based macOS versions including Snow Leopard and later.

How does this differ from the first-generation iMac G5?

This second-generation model features DDR2 memory (improved bandwidth over DDR) and a larger 150GB hard drive, along with refined internals. Externally the design is nearly identical.

Does it include a keyboard and mouse?

No. A USB keyboard and mouse are required. Original Apple USB peripherals from the era work perfectly, as do modern USB HID devices.

Can I run modern software on this machine?

Modern browsers, Office, and most current applications do not support PowerPC or Mac OS X Tiger/Leopard. This machine is best suited for period-specific software and collector use.

What is the warranty?

All Reboot IT products include a 12-month warranty covering hardware faults. If a fault develops within 12 months, we repair or replace at no cost.

What are the shipping costs?

Shipping costs apply based on size and destination — rates are calculated at checkout.

12-Month Warranty & Trust

Every Apple iMac G5 sold by Reboot IT carries a full 12-month warranty. We've been refurbishing and selling IT equipment since 2001 from our Melbourne workshop. Each unit is powered on, inspected, hardware-tested, and graded before dispatch. Visit us at reboot-it.com.au for our full range of vintage and modern refurbished equipment.