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iMacs and eMacs

iMac G5 (Ambient Light Sensor)

Selling a Mid 2005 iMac G5 on eBay or Craisglist? Use our Specs in Brief for the 17" 1.8 GHz, 17" 1.0 GHz or 20" 2.0 GHz for free.
Got an iMac? Join LEM's iMac group on Google Groups.
LEM's Mac OS 9 Group is for those using Mac OS 9, either natively or in Classic Mode.
LEM's Tiger Group is for those using Mac OS X 10.4.
LEM's Leopard Group is for those using Mac OS X 10.5.

Overview

The May 2005 revision of the iMac G5 got a 200 MHz speed boost, bringing it to 1.8 GHz and 2.0 GHz. Other improvements include an 8x dual-layer SuperDrive, better video, and gigabit ethernet.

512 MB of RAM is now standard across the line, making the entry-level model more responsive and possibly saving many users the expense of a memory upgrade. The 17" models ship with a 160 GB hard drive, and the 20" iMac now has a 250 GB drive.

iMac G5 Apple has replaced the nVidia graphics of the original iMac G5 and adopted the ATI Radeon 9600, which includes 128 MB of video memory (twice as much as in the 2004 model).

Bluetooth and AirPort Extreme are standard features on the new iMac G5.

With the 2004 iMac, models sold in North America and Japan were single voltage, while those sold in the rest of the world supported both 110 and 220 volt current. Based on published specs, this seems not to be the case with the 2005 iMac.

The 2005 iMac ships with Mac OS X 10.4 (Tiger).

Details

introduced 2005.05.03 at US$1,299 (17" 1.8 GHz Combo), $1,499 (17" 2.0 GHz SuperDrive), and US$1,799 (20" 2.0 GHz SuperDrive), replaced by 17" 1.8 GHz and 20" 2.1 GHz models 2005.10.12.
requires Mac OS X 10.4 through 10.5.x
CPU: 1.8/2.0 GHz G5
bus: 600/667 MHz
performance:

Geekbench 2 (Leopard): 985 (2.0 GHz), 882 (1.8 GHz)
Geekbench 2 (Tiger): 1176 (2.0 GHz), 1070 (1.8 GHz)

RAM: 512 MB, expandable to 2 GB using PC3200 (400 MHz) DDR SDRAM
Graphics: ATI Radeon 9600 with AGP 8x support
VRAM: 128 MB DDR SDRAM
monitor:
- 17" 1440 x 900 flat panel display
- 20" 1680 x 1050 flat panel display
video out: VGA, S-video (requires adapter)
L2 cache: 512 KB on CPU
hard drive: 160/250 GB 7200 rpm Serial ATA drive
Combo Drive: reads DVDs at up to 8x speed, writes CD-R discs at up to 24x, writes CD-RW discs at up to 8x, reads CDs at up to 24x
SuperDrive: writes DVD±R discs at up to 8x speed, dual layer at up to 2.4x; DVD±RW at up to 4x; reads DVDs at up to 8x, writes CD-R discs at up to 24x, writes CD-RW discs at up to 8x, reads CDs at up to 24x
USB: 3 USB 2.0 ports
FireWire: 2 FW400 ports
integrated 56 kbps modem supports v.92 standard
ethernet: 10/100/gigabit
WiFi: 802.11g AirPort Extreme included
Bluetooth: included
Microphone: internal
power: 130W
H x W x D (17"): 16.9 x 16.8 x 6.8 in/43 x 42.6 x 17.3 cm
H x W x D (20"): 18.6 x 19.4 x 7.4 in/47.2 x 49.3 x 18.9 cm
weight (17"): 18.5 lb/8.4 kg
weight (20"): 25.2 lb/11.4 kg
Part no.: M9843 (17" 1.8 GHz), M9844 (17" 2.0 GHz), M9845 (20")

Upgrades

none at present

Online Resources

Best used iMac G5 deals, updated biweekly.
Best classic Mac OS deals. Best online prices for System 6, 7.1, 7.5.x, Mac OS 7.6, 8.0, 8.1, 8.5, 9.0, 9.2.2, and other versions.
Best Mac OS X 10.4 'Tiger' deals. Best online prices for Mac OS X 10.4.
Best Mac OS X 10.5 'Leopard' deals. Best online prices for Mac OS X 10.5.
What's the best version of OS X for my Mac?, Ian R Campbell, The Sensible Mac, 2008.02.28. Which version of Mac OS X is best for your hardware depends on several factors.
The iMac Legacy: After the G3, Dan Knight, Mac Musings, 2008.08.15. The G3 iMac influenced the whole industry, but Apple continued to move forward with innovative designs using G4, G5, and Intel processors.
Know your Mac's upgrade options, Phil Herlihy, The Usefulness Equation, 2008.08.26. Any Mac can be upgraded, but it's a question of what can be upgraded - RAM, hard drive, video, CPU - and how far it can be upgraded.
The future of up-to-date browsers for PowerPC Macs, Charles Moore, Miscellaneous Ramblings, 2009.08.31. With Intel-only "Snow Leopard" shipping, software support for PPC Macs will continue its decline. Also, a look at SeaMonkey 2 and Camino 1.6.9.
Optimized software builds bring out the best in your Mac, Dan Knight, Low End Mac's Online Tech Journal, 2009.06.30. Applications compiled for your Mac's CPU can load more quickly and run faster than ones compiled for universal use.
Tips for installing or reinstalling Mac OS X 10.4 'Tiger', Adam Rosen, Adam's Apple, 2009.06.10. Mac OS X 10.4 uses less memory than Leopard, supports Classic Mode on PowerPC Macs, and, unlike Leopard, is supported on G3 Macs.
PowerPC architecture was not a failure, Dan Knight, Mac Musings, 2009.02.16. CNET's Brooke Crothers calls PowerPC a failed architecture, but 12 years of PowerPC Macs, IBM's blade servers, and three game consoles tell a different story.
The 'better safe than sorry' guide to installing Mac OS X updates, Charles Moore, Miscellaneous Ramblings, 2008.12.16. Most users encounter no problems using Software Update, but some preflight work and using the Combo updater means far less chance of trouble.
Why you should partition your Mac's hard drive, Dan Knight, Mac Musings, 2008.12.11. "At the very least, it makes sense to have a second partition with a bootable version of the Mac OS, so if you have problems with your work partition, you can boot from the 'emergency' partition to run Disk Utility and other diagnostics."
Will Snow Leopard support some PowerPC Macs?, Simon Royal, Mac Spectrum, 2008.11.26. It just doesn't make sense that Apple would ship a new OS that won't support Macs sold less than three years ago.
Leopard runs very nicely on PowerPC Macs, Simon Royal, Mac Spectrum, 2008.11.19. Some claim that Mac OS X 10.5 is so optimized for Intel Macs that it runs poorly on PowerPC hardware. That's simply not the case.
The future of PowerPC Macs and software as 'Snow Leopard' approaches, Simon Royal, Mac Spectrum, 2008.11.13. Apple phased out Classic Mode and G3 support with 'Leopard' last year, and next year's OS X 10.6 won't support any PowerPC Macs. Will other developers abandon PowerPC as well?
How to clone Mac OS X to a new hard drive, Simon Royal, Mac Spectrum, 2008.10.07. Whether you want to put a bigger, faster drive in your Mac or clone OS X for use in another Mac, here's the simple process.
Tiger vs. Leopard: Which is best for you?, Simon Royal, Mac Spectrum, 2008.09.22. Two great versions of Mac OS X, but unless your Mac is well above the minimum spec for Leopard and has lots of RAM, stick with Tiger.
Apple trumps Microsoft in making the 64-bit transition transparent to users, Frank Fox, Stop the Noiz, 2008.09.18. To use more than 4 GB of RAM under Windows, you need a 64-bit PC and the 64-bit version of Windows. On the Mac, OS X 10.4 and later already support it.
SATA, SATA II, SATA 600, and Product Confusion Fatigue, Frank Fox, Stop the Noiz, 2008.09.08. In addition to the original SATA specification and the current 3 Gb/s specification, SATA revision 3.0 is just around the corner.
Does running OS X system maintenance routines really do any good?, Charles Moore, Miscellaneous Ramblings, 2008.08.26. Mac OS X is designed to run certain maintenance routines daily, weekly, and monthly - but can't if your Mac is off or asleep.
Unreliable Macs, future Apple CPUs, replacing a Mac Plus mouse, and more, Dan Knight, Low End Mac Mailbag, 2008.08.12. Also Windows Media Player content that doesn't work on Macs, Leopard on a 700 MHz iMac G4, Apple's $99 Pro Care service, and CPU options.
Non-Intel Mac rumors, G5 iMac power supply failure, Leopard on a 700 MHz eMac, and more, Dan Knight, Low End Mac Mailbag, 2008.07.31. Also no 8 GB partition problem for clamshell iBooks, presentations in ClarisWorks, and watching DVDs on an upgraded Power Mac 7600.
The compressed air keyboard repair, Charles Moore, Miscellaneous Ramblings, 2008.07.24. If your keyboard isn't working as well as it once did, blasting under the keys with compressed air may be the cure.
How to upgrade your eMac without cracking the case, Jason Packer, Macs in the Enterprise, 2008.07.14. Some people like to replace the components inside their computers, but with FireWire and USB 2.0, Apple has made it easy to upgrade using external drives.
Mac Pro overclocking, Windependence with Darwine, Blu-ray for Macs, and more, Mac News Review, 2008.07.04. Also more on running Leopard on non-Apple hardware, Ubuntu on a Mac mini, the first autofocus webcam with Zeiss optics for Macs, and more.
PowerPC's last chance: The Mac's history with the G5 CPU, Dan Knight, Mac Musings, 2008.06.24. The introduction of the G5 Power Mac in June 2003 promised a bright 3 GHz future, and failure to achieve that paved the way to today's Intel Macs.
Virtual PC works with Leopard, Intel vs. PowerPC performance, beyond the Mac mini, and more, Dan Knight, Low End Mac Mailbag, 2008.05.20. Also upgrading Intel iMacs, Compact Flash in a PowerBook 2400, and thoughts on low-end Macs.
SheepShaver brings Classic Mac OS to Intel Macs and Leopard, Alan Zisman, Mac2Windows, 2008.05.20. Mac OS X 10.5 doesn't support Classic Mode. Neither does Leopard. But SheepShaver lets you emulate a PowerPC Mac and run the Classic Mac OS.
External $100 Sony DVD burner likes Macs, Brian Gray, Fruitful Editing, 2007.10.10. The box and manual say nothing about Mac compatibility, but this 18x USB 2.0 DVD burner is plug-and-play (at least with Tiger).
FastMac 8x SuperDrive and BurnAgain DVD: Fast and easy multisession disc burning, Charles Moore, Miscellaneous Ramblings, 2007.10.08. FastMac's 8x SuperDrive upgrade is remarkably fast compared with older PowerBook burners, and BurnAgain DVD makes it easy to append files to a previously burned CD or DVD.
New Macs expected August 7, Apple keyboard repair tutorial, Linux vs. Mac vs. Widows, and more, Mac News Review, 2007.08.03. Also new Apple keyboard inspired by MacBook?, Logitech's new Wave keyboard, iNeck lets G5 and Intel iMacs pivot, TechTool Pro updated for latest Macs, and more.
Software to darken iMac display, columnist returns iPhone, Logitech introduces air mouse, and more, Mac News Review, 2007.07.20. Also a USB turntable for turning your record albums into MP3s, a retractable thumb drive, iPhone: The Missing Manual, Parallels Desktop 3 a major update, and more.
11 ways to optimize your Mac's performance, Ed Eubanks Jr, The Efficient Mac User, 2007.03.12. If your Mac is getting sluggish, here are 11 tips that can help restore its original performance.
The annoying white iMac, Andrew J Fishkin, Best Tools for the Job, 2007.02.15. From a design standpoint, the iMac is brilliant, but the massive amounts of white plastic can distract you from what's on the display.
Region free DVD viewing options for Intel and PowerPC Macs, Andrew J Fishkin, The Mobile Mac, 2006.09.12. Several hardware and software options that will let your view 'wrong region' DVDs on your PowerPC or Intel Mac.
Macs take away Microsoft pain, Macs revive James Bond, iMac king of all media, iWoofer, and more, Mac News Review, 2006.06.16. Also Windows users guide to switching to the Mac, Bluetooth firmware update for PPC Macs, universal USB 2.0 drive adapter, waterproof case for video iPod, and more.
Drive matters, Dan Knight, Mac Musings, 2006.06.14. There's more to picking the right hard drive than size, spindle speed, buffer size, and price. But how can a 5400 rpm drive ever outperform a 7200 rpm drive?
The 2005 eMac and iMac value equation, Dan Knight, Mac Musings, 2005.05.03. The new eMacs and iMacs are faster, but are the close-out 2004 models better buys?
iMac G5: Nice system, but at a nice price?, Alan Zisman, Low End Mac Reviews, 2004.11.01. The iMac G5 sports some impressive improvements, but the question remains the market. Is it too expensive for the low end yet too compromised for the high end?
Do matching pairs of memory make the iMac G5 go faster?, Bare Feats, 2004.10.27. Although matching pairs benchmark up to 29% faster, real world tests show no significant difference in performance.
iMac PC3200 memory pricing, ramseeker
The iMac channel
The iMac List, an email list iMac users
The iMac NewsPage
Apple Specs for iMac G5 (Ambient Light Sensor)

Go to the iMac and eMac index.

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