1. Imac Os Download
2. Current Imac Os

Cuda for 10.11 os x 8. On October 17, 1998, Apple released Mac OS 8.5 and the first update to the popular Bondi iMac. CPU speed, base RAM, and most other specs were identical to the original iMac.

In addition to coming with OS 8.5 installed, the Revision B iMac incorporates the faster Rage Pro graphics chip, has 6 MB VRAM, and uses the power button as a reset button for easier crash recovery.

Mar 15, 2019  This version of OS X can be installed on Macs capable of running OS X 10.9. IMac (Mid-2007 or newer) MacBook (13″ Aluminum, late 2008), (13″, early 2009 or newer). Dec 17, 2009  Ok so I was wondering if it were possible for say like Windows XP/7 to run on a Mac air without Mac OS X. I am running snow leopard but you can check out my specs if you want. Don't get me wrong I'm not trying to ditch OS X but for school things would be a lot easier. 17 rows  May 26, 2020  If your Mac is using an earlier version of any Mac operating system, you should install the latest Apple software updates, which can include important security updates and updates for the apps installed by macOS, such as Safari, Books, Messages, Mail, Music, Calendar, and Photos. Initially, I was a little wary. Everything I read about OS X was how great it was, so I guess I must have been expecting the sea to part. After using it for a while, I find that it does have it's own issues. However, the purpose of this post is to talk about one of the reasons I love my new Mac: OS X and it's multi tasking.

The iMac’s firmware is stored on the same card that holds the CPU and memory chips. If firmware hasn’t been updated and your iMac is acting up, swapping the CPU card from a known working iMac will usually fix things. Then update the firmware in the other iMac.

• iMac speed tip: If you have Virtual Memory on and only 32 MB RAM, set VM to 64 MB for faster performance.
• Apple recommends iMac Update 1.1 for use with Mac OS 8.5 and 8.5.1. Note that OS 8.5.x must be installed before the 1.1 update is installed.
• According to Apple, iMac Update 1.2 should be installed on all iMac computers used in NetBoot client environments.
• If you are running Mac OS 8.6, Mac OS ROM Update 1.0 should be installed. You must have 8.6 installed before running this update.
• For more information on firmware updates, see iMac: When to Install Available Updaters.

If you have a hard drive larger than 8 GB, you should partition it so that the first partition is under 8 GB in size (for simplicity, we suggest 7 GB). Failure to do this could eventually result in an unbootable computer, as all System files must be within the first 8 GB of drive space. These Macs can work successfully with larger drives for some time, but once a System files goes outside of the first 8 GB of space, you’ll have nothing but problems.

• Got an iMac? Join our iMac Group or iMacs & eMacs Forum.
• Our Mac OS 9 Group is for those using Mac OS 9, either natively or in Classic Mode.
• Our Puma Group is for those using Mac OS X 10.1.
• Our Jaguar Group is for those using Mac OS X 10.2.
• Our Panther Group is for those using Mac OS X 10.3.

Mac OS X

If you have a hard drive over 8 GB in size, you must partition it or you will not be able to install Mac OS X. If you are creating the partition within OS X, it must be smaller than 7.4 GB as reported by Disk Utility (because sometimes a GB is billion bytes and sometimes it’s 1,073,741,824 bytes); we suggest simply setting it at 7 GB to avoid having to redo the whole installation if the partition ends up bigger than specified (it happens). Mac OS X must be completely within the first 8 GB of space on your hard drive or you will not be able to run OS X.

Tray-loading iMacs cannot boot from USB drives (see Apple Knowledge Base Article #58430, USB Info and Benefits of Dual-Channel USB).

Non-Apple upgrades and peripherals (such as unsupported USB devices, replacement drives, and third-party memory) may cause problems when installing or booting into Mac OS X.

Be sure that your iMac’s firmware is up to date before you install Mac OS X, and read and follow all of Apple’s “Read Before You Install” instructions to increase the likelihood of getting OS X installed and running on the first try.

The classic Mac OS identifies some 64 MB memory cards as only 32 MB, however OS X will correctly identify them and use all of their memory.

NOTE: The Sonnet HARMONi upgrade card, which includes a faster CPU and FireWire, was incompatible with early versions of Mac OS X 10.4. The FireWire port would tie up 100% of CPU resources. This problem was fixed in version 10.4.7 (if not earlier). If you have a HARMONi card that’s had this issue, be aware that updating to 10.4.7 or newer should fix it.

Details

• released on 1998.10.17 at $1,299; replaced by Revision C iMac 1999.01.05
• part number: M6709
• family number: M4984A
• Model identifier: iMac,1

Mac OS

• Requires Mac OS 8.5 or later, 10.3.x officially supported, 10.4.x can generally be installed using XpostFacto 4

Core System

• CPU: 233 MHz PPC 750
• L2 cache: 512 KB 2:1 backside cache
• Bus: 66 MHz
• RAM: 32 MB, possibly expandable to 768 MB using two DIMM sockets, uses same SDRAM SO-DIMM as PowerBook G3, top DIMM socket accepts 2″ DIMM, bottom socket takes 1.5″ DIMM. All tray-loading iMacs work with modules up to 128 MB. Field reports indicate that they will work with 256 MB and 512 MB modules as long as they are “CL2” modules. With a 512 MB module and a low-profile 256 MB module, it’s theoretically possible that these iMacs could support 768 MB of RAM.
• Performance: 4.5 (estimated, relative to 7500/100); 7.8, BYTEmark; 109.5, Speedometer 3.06; 15.2, Speedometer 4.02; 719, MacBench 5 (about 3% faster than Rev. A)
  see Benchmarks: iMac Rev. B for more details

Video

• Graphics: supports resolutions of 640 x 480, 800 x 600, and 1024 x 768 using ATI Rage Pro chip set, will support resolutions to 1600 x 1200 on an external monitor
• VRAM: 6 MB SGRAM
• Display: 15″ CRT (13.8″ viewable) multiscan to 1024 x 768

Drives

• Hard drive: 4 GB EIDE drive. Maximum IDE drive size is 128 GB without third-party support. See How Big a Hard Drive Can I Put in My iMac, eMac, Power Mac, PowerBook, or iBook? for your options.
• CD-ROM: 24x maximum throughput (32x on some later units)

Expansion

• SCSI: none
• PCI slots: none
• PMC (mezzanine/Perch) slots: one
• Microphone: built in (above monitor), standard 3.5mm minijack compatible with line-level input including Apple’s PlainTalk microphone
• USB: 2 USB 1.1 ports on a single controller, require OCHI compatible devices (some early USB peripherals may not be compliant)
• Modem: built-in v.90 56k modem
• Ethernet: 10/100Base-T
• WiFi: AirPort not supported
• infrared: 4 Mbps IrDA 1.1

Physical

• Power supply: 200W
• PRAM battery: 3.6V half-AA
• Height: 15.8 in/39.5 cm
• Width: 15.2 in/38.0 cm
• Depth: 17.6 in/44.0 cm
• Weight: 38.1 lb/17.3 kg

Online Resources

• Low End Mac’s Compleat Guide to Cards for the iMac’s Mezzanine Slot, 2018.02.07. Only a few cards were ever made for the “secret” slot in the Rev. A and B iMacs.
• Upgrades for the tray-loading iMac, 2003.05.12 (since updated). Overview of memory, hard drive, CD-RW, and CPU upgrade options for the Rev. A-D iMac.
• WiFi Hardware Compatible with Desktop Macs Running OS X, MetaPhyzx, Mac Daniel, 2009.03.11. USB, ethernet, PCI, and other wireless hardware compatible with Mac OS X.
• 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.
• Low End Mac’s Compleat Guide to Mac OS 9, Charles W Moore, Miscellaneous Ramblings, 2008.05.12. Mac OS 9 remains fast and stable, but Classic software hasn’t kept up with the changing internet. Which Macs support OS 9, where to buy it, and how to update to 9.2.2.
• WiFi Adapters for Desktop Macs Running Mac OS 9, MetaPhyzx, Mac Daniel, 2009.02.10. USB, ethernet, PCI, and other wireless hardware compatible with the Classic Mac OS.
• 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.
• Is It Worth Maxing the RAM in Old G3 and G4 Macs?, Simon Royal, Tech Spectrum, 2009.04.15. Increasing memory can make your old Mac faster and make you more productive, but it probably won’t improve resale value by the amount you spend.
• The iMac Legacy: The G3 Era, Dan Knight, Mac Musings, 2008.08.15. 10 years ago today, the original iMac went on sale. One of the most popular lines of computers ever, the G3 iMac would be Apple staples for nearly five years.
• iMac: Installing Memory, Apple. Step-by-step instructions for getting into a tray-loading iMac and replacing its memory.
• 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.
• Overclocking a tray-loading iMac G3, Dan Knight, Mac Daniel, 2009.02.10. Instructions for overclocking a Rev. A through Rev. D iMac. Proceed at your own risk.
• Practical iMac G3 applications and upgrades, Dan Knight, Mac Musings, 2008.12.22. Used G3 iMacs are going for a song these days, but are they worth spending money on, let along upgrading?
• 4 GB RAM problem persists after firmware update, TriBook concept MacBook, DIY Mac netbook, and more, The ‘Book Review, 2008.12.19. Also using third-party monitors with ‘Late 2008’ MacBooks, MacMagSaver protects MagSafe cord, $25 802.11g USB adapter, bargain ‘Books from $500 to $2,299, and more.
• The ‘Better Safe Than Sorry’ Guide to Installing Mac OS X Updates, Charles W 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.”
• Old Macs in the new economy, John Hatchett, Recycled Computing, 2008.11.25. “We are the kings of making our computers last, last, and last some more.”
• How to clone Mac OS X to a new hard drive, Simon Royal, Tech 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.
• Getting the most from your G3 Mac, Simon Royal, Tech Spectrum, 2008.10.03. Most G3 Macs can be upgraded so they can run Mac OS X 10.4 ‘Tiger’ quite nicely. Here’s how.
• Taking apart a tray-loading iMac, John Hatchett, Recycled Computing, 2008.09.29. There are a few tricks to getting into a tray tray-loading iMac, whether it’s to upgrade the computer or strip it for parts.
• Are G3 Macs still viable work machines?, Simon Royal, Tech Spectrum, 2008.09.08. For basic tasks – writing, email, and using the Web – a G3 Mac with Mac OS X 10.4 and sufficient memory provides plenty of power.
• Overclocking a Mac mini got me hooked on souping up Macs, Adam Geller, My First Mac, 2008.09.04. Stories of hot rodding iBooks, G3 iMacs, and PCI Power Macs on the cheap.
• Buying glasses online, iCab on G3 iMacs, USB adapter for WallStreet, long term support, and more, Charles W Moore, Miscellaneous Ramblings, 2008.07.16. Also whether a 1.67 GHz PowerBook is a sensible choice, midrange or top-end the best value, Opera can change the way you work on the Web, and more.
• Bringing a 233 MHz iMac into the Mac OS X age, Carl Nygren, Classic Macs in the Intel Age, 2008.07.15. Upgraded with 128 MB additional RAM and a larger hard drive, the iMacs was ready for Mac OS X 10.2 ‘Jaguar’ – and runs it very nicely.
• Turn your old Mac into a web server with Linux, Apache, MySQL, and PHP, Jason Packer, Macs in the Enterprise, 2008.07.09. Step-by-step instructions for installing and configuring Linux, Apache, MySQL, and PHP on an older Mac.
• Turn your old Mac into a website server with free open source software, Jason Packer, Macs in the Enterprise, 2008.07.02. By installing Linux without a GUI, your old Mac can dedicate all of its resources to running Apache, MySQL, and PHP.
• Praise for Opera, low cost iBook mobo replacement, IrDA and IRtalk, WaMCom recommended, and more, Charles W Moore, Miscellaneous Ramblings, 2008.06.18. Also the use of ‘compleat’, booting from CD, new Toshiba 1.8″ drives too thick for MBA, and PowerPC support and Snow Leopard.
• Mac OS X 10.2 ‘Jaguar’ can unleash the power of G3 iBooks, Carl Nygren, Classic Macs in the Intel Age, 2008.06.17. After pulling a bad stick of RAM, the Dual USB iBook didn’t have enough memory for Tiger or Linux. But even with just 128 MB of RAM, Jaguar did the job.
• My first iMac, Carl Nygren, My First Mac, 2008.05.19. There were a couple of Bondi blue iMacs in school that weren’t even plugged in. Intriguing….
• More G4 upgrade advice, secure disk wipes, 500 MHz iMacs with Tiger in action, and more, Dan Knight, Low End Mac Mailbag, 2008.05.09. The importance of securely clearing your hard drive before you pass on your Mac, Pismo and closed lid mode, G3 iMacs in the classroom, and more thoughts on upgrading G4 Power Macs.
• Power Mac G5 vs. Intel Mac mini, video thumbnails lost in migration, OCR software, and more, Dan Knight, Low End Mac Mailbag, 2008.03.17. Also HARMONi compatibility with Mac OS X 10.4, a dual processor G4 auction, Internet access by digital phone, and more.
• Panther faster than Jaguar, unstable browsers, best low cost Mac for video work, and more, Dan Knight, Low End Mac Mailbag, 2008.03.04. Also Tiger on tray-loading iMacs, firmware updates, LC 575 won’t boot, booting from Compact Flash, and big hard drives on G4 Power Macs.
• 3 ways to better YouTube viewing on older Macs, Dan Knight, Low End Mac Mailbag, 2008.02.06. Watching YouTube videos in your browser on G3 Macs can be painfully slow, but there are several ways to improve your YouTube viewing experience.
• MacBook Air vs. ThinkPad X300, moving from MacBook to PowerBook, USB 2.0 cables, and more, Dan Knight, Low End Mac Mailbag, 2008.01.22. Also another crumbling G3 iMac, a Rev. B iMac brought back from the dead, ‘fencing in’ type in HTML, and Leopard on an AGP Power Mac G4.
• How the G3 iMac crumbles, Tommy Thomas, Welcome to Macintosh, 2008.01.18. The green light of death, failing powerboards, and crumbling plastics are some of the problems old CRT iMacs face as they age.
• Lawsuits getting out of hand, G3 iMac upgrade resources, Leopard on a 400 MHz TiBook, and more, Dan Knight, Low End Mac Mailbag, 2008.01.08. Also wondering why Mac OS X 10.5 won’t run on the ‘Yikes!’ Power Mac G4 and AltiVec just works.
• 512 MB in tray-loading iMacs, partitioning iBook (FireWire) hard drive, value of Kanga, and more, Dan Knight, Low End Mac Mailbag, 2008.01.03. Also a source for Mac IIfx SCSI terminators, ongoing problems with a Rev. B iMac, and need to match screen size to printed output.
• OS X on Flash in CardBus, Quartz Extreme benefits, fix or unload a Performa 550, and more, Dan Knight, Low End Mac Mailbag, 2007.12.13. Also suggestions for fixing a troublesome iMac, locating an ADB keyboard, finding old versions of BBEdit Lite, and dealing with ligature problems.
• iMac repair page, Jason W., Wiley Trade Group
• Hot so Reset the Cuda/PMU in a G3 iMac, How to Upgrade Your iMac
• Bringing G3 iMacs and other G3 Macs into the Tiger Age, Dan Knight, Mac Daniel, 2007.12.07. Tips on hard drives, memory, WiFi, and getting Mac OS X 10.4 installed on G3 iMacs and other older G3 Macs.
• iMac Rev. B nightmares, thousands vs. millions of colors performance, and unsupported Leopard, Dan Knight, Low End Mac Mailbag, 2007.12.11. Problems restoring a Rev. B iMac, color depth and graphics performance, and more unsupported Leopard reports.
• 8 GB partition issue impacts OS 9, RAM for G3 iMacs, success with Open Firmware hack, and more, Dan Knight, Low End Mac Mailbag, 2007.12.10. Partitions over 8 GB can cause problems in the classic Mac OS, more unsupported Leopard reports, another vote against the iPhone, and millions vs. thousands of colors.
• Reasons for sticking with the Classic Mac OS, Tommy Thomas, Welcome to Macintosh, 2007.10.30. Whether it’s the simplicity, elegance, speed, or desire not to replace lots of expensive hardware, there are lots of good reasons for sticking with Mac OS 9.
• Road Apple nominations, OS X 10.5 on MDD Power Macs, UMPCs and Apple, and a broken power button, Dan Knight, Low End Mac Mailbag, 2007.10.12. Whether some additional Macs merit the ‘Road Apple’ label, Leopard on Mirrored Drive Doors Power Macs, the usefulness of ultrasmall computers, and dealing with an iMac with a broken power button.
• The future of G3 iMacs in the Age of Leopard, Dan Knight, Mac Musings, 2007.09.13. From August 1998 through December 2001, G3 iMacs were Apple’s hot consumer computers. Which ones are best for OS X, and which should be avoided?
• Tiger on a G3 iMac and Pismo, running OS 9 from a flash drive, 7200 rpm drive heat, and more, Dan Knight, Low End Mac Mailbag, 2007.09.13. Also iMac upgrade advice, iBook G3 video chip resoldering, and how to get your website indexed by Google.
• External video options for a G3 iMac, Dan Knight and Kris Finkenbinder, Low End Mac Mailbag, 2007.07.25. Many G3 iMacs are fuzzy at 1024 x 768. What are the options for connecting an external monitor and disabling the built-in display?
• 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 flash drive, iPhone: The Missing Manual, Parallels Desktop 3 a major update, and more.
• Making new Mac users with old iMacs and Tiger, buying newer vs. upgrading, booting Compact Flash, and more, Dan Knight, Low End Mac Mailbag, 2007.05.29. Getting seniors online with old iMacs, buying a newer Mac rather than upgrading an old one, booting PowerBooks from Compact Flash, and questions about video conferencing.
• The Truth About CRTs and Shock Danger, Tom Lee, Online Tech Journal, 2007.05.22. You’ve been warned that CRT voltage can injure and even kill. The truth is that this danger is overstated – and takes attention away from a greater danger.
• Why Apple must continue G3 support in Mac OS X 10.5 ‘Leopard’, Dan Knight, Mac Musings, 2007.05.08. “We’re worried about what happens if Apple unchecks that box in Xcode to include the instructions necessary to run OS X on G3 processors at all.”
• Daystar offers G4 CPU upgrade for 1st-gen iMacs, Peter Cohen, Macworld, 2007.03.29. “Daystar Technology on Thursday announced the XLR8 400 MAChSpeed G4 IMTL Kit. The $99 kit enables you to upgrade your original iMac with a G4-class processor operating at 400 MHz.”
• Is Ubuntu Linux a sensible alternative for Mac users?, Charles W Moore, Miscellaneous Ramblings, 2006.09.18. If your Mac can run OS X decently, is there any reason to try Ubuntu Linux? If it can’t run OS X well, is Ubuntu a reasonable choice?
• Is the G3 still a practical choice?, Matthew Jay, Macs to the Max, 2006.08.10. Although the G3 is several generations old, it has enough horsepower for most of the things we do on our computers.
• Customizing Mac OS 9, Nathan Thompson, Embracing Obsolescence, 2006.08.01. Fiddling with themes, picking a browser, and making the Classic Mac OS work just the way you want it to.
• Making the move from Jaguar (OS X 10.2) to Panther (10.3), Ted Hodges, Vintage Mac Living, 2006.04.11. One advantage of Apple’s “no upgrades” policy for OS X – someone can give you their old copy after upgrading without worrying about violating their license.
• Many G3 Macs now considered vintage, Mac News Review, 2006.03.31.
• Web browser tips for the classic Mac OS, Nathan Thompson, Embracing Obsolescence, 2006.01.03. Tips on getting the most out of WaMCom, Mozilla, Internet Explorer, iCab, Opera, and WannaBe using the classic Mac OS.
• The best browsers for PowerPC Macs and the classic Mac OS, Nathan Thompson, Embracing Obsolescence, 2005.12.16. Two browsers stand out from the pack: iCab 3 is modern and remains under development, and WaMCom brings Mozilla to older Macs.
• How Big a Hard Drive Can I Put in My iMac, eMac, Power Mac, PowerBook, or iBook?, Dan Knight, Mac Daniel, 2005.10.24. A lot of older Macs don’t know how to deal with drives over 128 GB in size. We look at three options.
• Can I install the hard drive and CPU from my Power Mac G4 in an iMac?, Dan Knight, Mac Daniel, 2005.02.21. The iMac uses a standard IDE hard drive, but you can’t plug in a G4 pulled from a Power Mac. However, there are other CPU upgrade options.
• Upgrading an old iMac to Mac OS X, William Porter, TidBITS, 2005.02.07. Preparing a pair of 2001 iMacs for OS X and then getting Jaguar up and running on them.
• Which iMac is it? A quick guide to differentiating CRT G3 iMacs, Dan Knight, Mac Daniel, 2005.02.02. Two form factors, nine CPU speeds, and fifteen different colors. How can anyone keep this straight?
• Is the tray loading iMac a good choice for OS X?, Dan Knight, Mac Daniel, 2004.09.07. With prices starting under US$200, is a tray-loading iMac a good value for running OS X?
• MCE slot-loading drive replaces original iMac drive, Mac Minute, 2004.06.14. “MCE Technologies is now offering an internal 24x slot-loading CD-R/RW drive for replacing the tray-loading CD-ROM drive in the original iMac (233, 266, and 333 MHz).”
• Resurrecting a Revision A 233 iMac, Guy Hemmings, 2003.03.30. Dead CRT? Not a problem. Build the rest into a new case, add a monitor, and get back to work.
• Upgrading your G3 iMac, Evan Kleiman, Mac Daniel, 2003.03.07. Three types of upgrades that can improve your old iMac for less than the cost of buying a new one.
• 16x CD-RW for tray loading iMacs, MCE. Burn CD-Rs at 16x, CD-RW at 10x, and read CDs at 24x in oldest iMacs – $199.
• Rage at being left behind, Dan Knight, Mac Musings, 2001.12.24. It’s official – Apple doesn’t plan to support graphics acceleration for any Mac with ATI Rage video.
• OS X graphics speedup with early ATI video, Mac OS X: Optimizing for Earlier ATI Graphics Accelerators, 2001.03.09. ATI Rage II+, IIc, Pro, and LT Pro faster displaying thousands of colors, not millions.
• Upgrading an iMac, Chris Lawson, 2000.09.18
• iMAXpowr G3 and G4, MyMac, 2000.09. In many real-world tests, the G3/466 “felt quicker” than the G4/433 – something LEM has maintained for some time.
• The dubious economics of processor upgrades, Charles W Moore, Miscellaneous Ramblings, 2000.02.07. Even if you can upgrade the CPU, should you?
• Hands On: iMAXpowr G3/466, Insanely Great Mac, 2/1. First CPU upgrade for the iMac (Rev. A-D).
• The iMac List, an email list iMac users
• iMac 233 MHz Technical Specifications, AppleCare Knowledge Base

Suggested Accessories

• UniSwitch, iMacButton, and iSafe makes resetting much easier.
• A more conventionally shaped mouse. We’re huge fans of the Contour UniMouse.

Cautions

• You cannot plug the iPod shuffle directly into the iMac’s USB port – it will not fit. It will not charge if plugged into a keyboard USB port or an unpowered USB hub. To charge it while using it with your iMac, you must us a USB extension cable, powered USB hub, iPod shuffle dock, or a USB power adapter.
• iMac iNfo (1998.08.30, dead link) noted that brownouts can put the iMac into a coma. Solution: Buy an uninterruptible power supply. You must have the keyboard plugged directly into an iMac USB port to boot with the power key; it will not work if the keyboard is attached to a hub.
• You cannot boot the iMac from an external USB drive.
• The iMac loads the MacOS Toolbox into RAM, unlike other Macs which use it from ROM. You lose the use of 3 MB of memory but gain faster performance.

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Apple refers to these as iMac (Early 2006), but we also call them iMac Core Duo, the first iMacs based on Intel’s Core Duo processor.

Three months earlier, had Apple introduced an updated iMac G5 – slimmer, lighter, a bit faster, with built-in iSight and sporting a remote control. In January 2006, Apple replaced it with what looks like essentially the same computer from the front, but with an Intel Core Duo CPU instead of a single-core PowerPC G5.

There was a lot of debate about which model would be the first with Intel inside, and the iMac is a good choice. The Core Duo processor offers 2-3x the power of the G5, and it would be unseemly for the new Intel-based Mac mini to outperform the iMac. Which raises the question: Will the new Intel iMac outperform the Power Mac G5 Dual?

The only things that seem to be missing are FireWire 800, which Apple still reserves for its “pro” models and has not yet put on an iMac, and AppleWorks, a product Apple has bundled with every previous iMac. This is the first iMac ever to officially support monitor spanning.

Jan 18, 2017  Windows Media® Components for QuickTime are provided by Flip4Mac™. Click “Download” to visit the Flip4Mac™ download site. Supported Operating System Apple Mac OS X More information is available at the Flip4Mac™ download site. Install Instructions. Quicktime plugin for os x. May 10, 2010  Download QuickTime Player 7 for Mac OS X v10.6.3. QuickTime Player 7 supports older media formats, such as QTVR, interactive QuickTime movies, and MIDI files. It also accepts QuickTime 7 Pro registration codes, which turn on QuickTime Pro functions. This version of QuickTime Player is unsupported and is provided for compatibility with legacy media workflows on.

The new iMac ships with Mac OS X 10.4.4 Tiger, the first Intel version of the Mac OS, and iLife ’06, which is a universal binary and is intended to replace the aging AppleWorks 6.

The biggest drawback to Core Duo iMacs is that they ship with only 512 MB of memory. While that’s enough to run Tiger comfortably, it doesn’t provide a lot of room for browsers and other high-demand apps. Users will be much happier with 1 GB, and, for the price, you may as well go all the way to its maximum of 2 GB.

What You Need to Know

Using the 32-bit only Core Duo CPUs allowed Apple to introduced Intel-based Macs before the Core 2 Duo, which supports both 32-bit and 64-bit operation, came to market. Because OS X 10.7 Lion is a 64-bit only operating system, Core Duo Macs do not support it, making OS X 10.6 Snow Leopard the end of the Mac OS road for the earliest Intel Macs.

With a 2 GB memory ceiling, this iMac wouldn’t run Lion decently anyhow, but the first generation Intel Macs run Snow Leopard very nicely with 2 GB of RAM. If your Early 2006 iMac has 512 MB, upgrade immediately. You really need 1 GB to get okay performance from OS X 10.4 Tiger or 10.5 Leopard. As of June 2016, you can get 2 GB for $15 from Other World Computing, and with Snow Leopard just $20 from Apple, take this iMac as far as it will go with RAM and operating system.

Intel iMacs shipped with 7200 rpm hard drives, and 250 GB may be enough for you. Newer drives will often provide much snappier performance due to larger data buffers. 1 TB 7200 rpm drives start below $40 these days, and for a serious speed boost – like starting up twice as fast – Other World Computing offers a 60 GB solid state drive (SSD) for just $43 ($55 with a mounting kit), although you’ll probably want more more capacity than that.

Finally, you can upgrade to a faster, more efficient Core 2 Duo Socket M CPU, although that won’t give you 64-bit operation unless you update to EFI firmware 2,1. The 2.33 GHz Core 2 Duo T7600 is a popular upgrade option, currently $26 and up on eBay (see CPU Upgrade Options for 2006 iMacs).

Intel-based Macs use a partitioning scheme known as GPT. Only Macintel models can boot from GPT hard drives. Both PowerPC and Intel Macs can boot from APM (Apple’s old partitioning scheme) hard drives, which is the format you must use to create a universal boot drive in Leopard. PowerPC Macs running any version of the Mac OS prior to 10.4.2 cannot mount GPT volumes. PowerPC Macs won’t let you install OS X to a USB drive or choose it as your startup volume, although there is a work around for that.

Details

• introduced 2006.01.10 at US$1,299 (17″ 1.83 GHz) and US$1,699 (20″ 2.0 GHz); replaced 2006.09.06 by iMac Core 2 Duo. Education-only 17″ model with Combo drive introduced 2006.07.05.
• Model identifier: iMac4,1
• Model no.: A1173 (17″), A1174 (20″)
• Part no.: MA199 (17″), MA200 (20″)
• Latest EFI version: EFI 1.1

Mac OS

• Requires Mac OS X 10.4.4 Tiger to 10.6 Snow Leopard; not compatible with OS X 10.7 Lion
• Mac OS X 10.6 Snow Leopard compatibility
  • Grand Central Dispatch is supported.
  • 64-bit operation is not supported with Core Solo or Core Duo CPUs. Upgrading with a Core 2 Duo CPU will not change that.
  • OpenCL is not supported with Radeon X1600 GPU.

Core System

• CPU: 1.83/2.0 GHz Intel Core Duo Yonah, Socket M makes upgrades possible (see CPU Upgrade Options for 2006 iMacs)
• L2 cache: 2 MB shared cache on CPU
• Bus: 667 MHz
• Performance:
  • Geekbench 2: 2542 (2.0 GHz), 2363 (1.83 GHz)
• RAM: 512 MB, expandable to 2 GB using two PC2-5300 DDR2 SODIMMs

Video

• Graphics: ATI Radeon X1600 with PCI-Express support, supports up to 23″ external display and monitor spanning
• VRAM: 128 MB GDDR3 SDRAM (expandable to 256 MB on 20″ model)
• Display:
  • 17″ 1440 x 900 flat panel display
  • 20″ 1680 x 1050 flat panel display
• Video out: mini-DVI, VGA, S-video, composite (requires adapter)

Drives

• Hard drive bus: 1.5 Gbps SATA Rev. 1
• Hard drive: 160/250 GB 7200 rpm SATA drive
• Optical drive bus: Ultra ATA/100 (operates at ATA/33)
• 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

Expansion

• USB: 3 USB 2.0 ports
• FireWire 400: 2 ports
• Modem: optional 56 kbps USB modem supports v.92
• Ethernet: 10/100/gigabit
• WiFi: 802.11g AirPort Extreme included
• Bluetooth 2.0: included
• IR receiver: supports Apple Remote (included)
• Microphone: internal

Physical

• 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″): 15.5 lb/7 kg
• weight (20″): 22 lb/10 kg
• Power supply: 180W

CPU Upgrades

• CPU can be replaced with Core 2 Duo or faster Core Duo.

Online Resources

• 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.
• Stayin’ Alive: Upgrading the CPU, Hard Drive, and RAM on a 2006 iMac, Jim Tanous, TekRevue, 2013.11.17. “…the 2006 iMac was uniquely suited for this upgrade project. Not counting the Mac Pro, it was one of the last Macs with a socketed CPU, meaning that processor upgrades were possible….”
• The road to obsolescence: Intel Core Duo users will be left behind, Steve Watkins, The Practical Mac, 2010.01.19. Mac OS X 10.7 may well be the version that leaves behind those with 32-bit Core Solo and Core Duo Macs from 2006.
• 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.
• Why the 20″ iMac is perfect for home or school, John Hatchett, Recycled Computing, 2009.09.29. The aluminum iMac has plenty of power and screen space, yet it’s small enough and light enough to tote from place to place.
• The 64-bitness of Mac OS X 10.6 ‘Snow Leopard’, Dan Knight, Mac Musings, 2009.08.19. Although Apple is promoting ‘Snow Leopard’ as a fully 64-bit operating system, it defaults to running in 32-bit mode.
• The Road Ahead: 64-bit Computing, Dan Knight, Mac Musings, 2009.08.19. Personal computers started with 8-bit CPUs, Macs started out with a 24-bit operating system, and 32-bit computing is starting to give way to 64 bits.
• OS X 10.6 requirements, why Apple owns the high end, when to upgrade your Mac, and more, Mac News Review, 2009.08.14. Also Microsoft Word patent infringement, BackPack shelf for iMac and Cinema Displays, two updated Bible study programs, and more.
• OS X 10.6 Snow Leopard for $29, run Windows on your Mac for Free, Update Breaks Office 2008, and more, Mac News Review, 2009.08.07. Also getting your Mac ready for Snow Leopard, Time Capsule doubles capacity, Picasa 3 for Mac, Bodega Mac app store, and more.
• Computer disaster ends happily, Alan Zisman, Zis Mac, 2009.08.05. The iMac was getting slower and slower, and Disk Utility kept trying to fix the same problems. With a new hard drive, the iMac is running as well as ever.
• 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.
• Intel’s promise fulfilled: More processing power per processor cycle, Dan Knight, Mac Musings, 2009.06.30. Apple promised improved CPU efficiencies when it announced the move to Intel in 2005. Three years of MacBooks show the progress.
• 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.
• Golden Apples: The 25 best Macs to date, Michelle Klein-Häss, Geek Speak, 2009.01.27. The best Macs from 1984 through 2009, including a couple that aren’t technically Macs.
• Ubuntu Linux and Boot camp make it easy to create a triple boot Mac, Alan Zisman, Mac2Windows, 2008.12.24. Boot Camp makes it easy to install Windows on Intel Macs, and Ubuntu now makes it easy to install Linux to a virtual Windows drive.
• The ‘Better Safe Than Sorry’ Guide to Installing Mac OS X Updates, Charles W 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.”
• Virtualization shootout: VMWare Fusion 2 vs. Parallels Desktop 4, Kev Kitchens, Kitchens Sync, 2008.11.20. Both programs do the same thing, but one runs Windows XP smoothly alongside Mac apps, while the other bogs down everything but Windows.
• How to clone Mac OS X to a new hard drive, Simon Royal, Tech 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.
• CodeWeavers brings Google’s Chrome browser to Intel Macs, Alan Zisman, Zis Mac, 2008.10.02. Google’s new Chrome browser uses separate processes for each tab and brings other changes to Windows users. Now Mac fans can try it as well.
• Tiger vs. Leopard: Which is best for you?, Simon Royal, Tech 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.
• 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 W 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.
• The Compressed Air Keyboard Repair, Charles W 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.
• Free VirtualBox for Mac now a virtual contender, Alan Zisman, Mac2Windows, 2008.07.21. A year ago, the Mac version of VirtualBox lacked some essential features. Over the past year, it’s grown into a very useful tool.
• 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.
• Windows on Macs: Three paths for integration, Jason Packer, Macs in the Enterprise, 2008.05.14. Mac users have three routes for running Windows apps: Run Windows using Boot Camp or virtualization, or use a compatibility layer such as WINE.
• Apple #4 US PC vendor, IT and Macs in business, NetWare for Leopard, and more, Mac News Review, 2008.04.25. Also still using old Macs, 200 Mbps powerline networking for Macs, Macintel firmware restoration, hot swap SATA drives, and more.
• Restore stability to a troubled Mac with a clean system install, Keith Winston, Linux to Mac, 2008.01.15. If your Mac is misbehaving, the best fix just might be a fresh reinstallation of Mac OS X – don’t forget to backup first.
• Mac hits 6.8% share on Net, Intel iMac screen problems, Classic on Leopard, and more, Mac News Review, 2007.12.07. Also adding hierarchical menus to the Leopard Dock, speeding up Leopard with less colors, a new OS X email client, and Parallels Premium Edition.
• 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 W 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 flash drive, iPhone: The Missing Manual, Parallels Desktop 3 a major update, and more.
• VMware Fusion beta 3 adds new features, takes a giant step toward release, Alan Zisman, Mac2Windows, 2007.04.11. Looking for a virtualization solution for your Intel Mac? The latest beta of VMWare Fusion makes several improvements and includes some unique features.
• 1 core, 2 cores, 4 cores, 8: How Much Difference Does It Make?, Dan Knight, Mac Musings, 2007.04.10. Geekbench scores make it possible to compare the newest 3 GHz 8-core Mac Pro with the 1.5 GHz Core Solo Mac mini – and all the models in between.
• 11 No Cost Tips for Optimizing Mac OS X 10.4 Tiger 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.
• DST fixes & info for OS X, Classic Mac OS; Maynor demos WiFi hack; Samsung’s hybrid drive; and more, The ‘Book Review, 2007.03.09. Also glossy vs. matte displays, troubleshooting slot-loading drives, 802.11n upgrade for MacBooks and Intel iMacs, bargain ‘Books from $209 to $2,299, and more.
• CrossOver: Run Windows Apps on Intel Macs Without Windows, Alan Zisman, Mac2Windows, 2007.02.28. If you need to run Windows apps on your Intel Mac once in a while, CrossOver may be the least expensive way to do so since it eliminates the need to buy a copy of Windows.
• 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.
• Which Intel Macs Take CPU Upgrades?, $2 802.11n Enabler, USB Drive Adapter, and More, Mac News Review, 2007.02.02. Also a DST fix for Panther, Logos coming to Macs, Intel’s chip breakthrough, iConnect iPod integration for GM vehicles, a waterproof iPod, and more.
• ‘Poor boy’ .mac alternatives, Mac Pro ruled in 2006, Apple closing on HP, and more, Mac News Review, 2007.01.05. Also Mac mini in a Subaru, frugal Mighty Mouse, what to do when your 2006 iMac won’t start, compact Pentax scanner, wireless USB extender, new drive enclosures, and more.
• World’s fastest Mac, ‘notMac’ challenge, Intel Mac bug with target disk mode, and more, Mac News Review, 2006.12.15. Also a contest from ThriftyMac, miniStack V2 grows to 750 GB, PROGear’s card reader matches Mac Pro and Power Mac G5 styling, and the Ear3 hearing threat detector.
• Parallels Revisited: Release Version Far More Polished than Beta, Alan Zisman, Mac2Windows, 2006.11.21. Parallels lets you run Windows or Linux without rebooting your Intel-based Mac, and it’s made great strides since the beta came out earlier this year.
• Mac Pro blows away competition, extended warranties crummy deals, firmware updates for Intel mini and iMac, more, Mac News Review, 2006.11.17. Also 7 free Mac maintenance utilities, dual LCD monitors, a vacuum tube amp for the iPod, and more.
• Beginning my Macintel adventure, Steve Watkins, The Practical Mac, 2006.09.21. When Apple introduced the Core 2 Duo iMacs, the time was ripe to pick up a 20″ Core Duo iMac on the cheap.
• 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.
• Is 512 MB enough?, Macs gain share in business, wireless Mighty Mouse, Toast adds Blu-ray support, and more, Mac News Review, 2006.07.28. Also OWC’s FireWire 400 & 800/USB 2.0/eSATA drives, miniXpress 160 GB drive, Jeep flash drives, SteerMouse supports up to 8 buttons plus vertical and horizontal scrolling, and miniStat2 system monitor.
• Edu-iMac too compromised, Mac Portables return to mothership, SheepShaver unstable, and more, Dan Knight, Low End Mac Mailbag, 2006.07.12. Thoughts on the education iMac, the Mac Portable, and the value of a Mac Plus in 2006. Also SheepShaver feedback, OS X ligature problems, and MP3 software for OS 8.
• Is the new edu-iMac a good value or simply too compromised?, Dan Knight, Mac Musings, 2006.07.10. The new education-only iMac is mostly the same as the consumer model, but how big an impact will the Intel graphics have on performance?
• Switching the small office from Windows to Macs, Ed Eubanks Jr, The Efficient Mac User, 2006.06.28. With Intel-based Macs, the time may be right to adopt OS X as your standard platform while providing Windows as an option when necessary.
• 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?
• Symantec says buy a Mac, SheepShaver supports Classic on Macintel, painted minis, and more, Mac News Review, 2006.05.19. Also email on a Mac Plus, firmware updates for Intel iMac and mini, $159 G4/933 MHz upgrade, FW800/USB 2.0 to SATA bridge board, and more.
• Macintosh G6 clones, Apple tops in tech support, Mac mini Core Duo upgrades, and more, Mac News Review, 2006.05.12. Also more on Boot Camp, 1.66 GHz Mac mini vs. 1.83 GHz iMac, Seagate’s humongous 750 GB hard drive, Guest PC gets faster, and more.
• Apple’s original Boot Camp installation instructions, Jeff Adkins, The Lite Side, 2006.04.11. “Was it just me, or did anyone else catch those little jabs at Windows on the Boot Camp installation page? ‘If your computer becomes infected, well, what did you expect?’ and so on.”
• Apple joins ‘Win on Mac’ army with Boot Camp, Alan Zisman, Mac2Windows, 2006.04.07. The hackers did it first, but Apple’s Boot Camp is a much more elegant solution to putting Windows XP on Macintel hardware.
• Boot Camp: Apple officially supports Windows XP booting on Macintel hardware, The Macintel Report, 2006.04.06. No more need to do any hacks to get WinXP booting on Apple’s Intel-based Macs. Apple’s new Boot Camp software fully supports it.
• Windows XP on Macintel a reality, Alan Zisman, Mac2Windows, 2006.03.23. It took a while, but it’s now possible to boot Windows XP on the new Intel-based Macs.
• WinXP boots on Macintel, real world thinking about Rosetta performance, and Intel’s impact on future Macs, The Macintel Report, 2006.03.23. If you want to run Windows XP on Macintel hardware, it’s now possible. Also, common sense thinking about Rosetta speed and how Intel’s future CPU plans will shape the Mac.
• OS X 10.4.5 fixes Front Row video glitch on Intel iMac, Mac mini inside an SE/30,’I’m not buying a Mac’, and more, Mac News Review, 2006.02.17. Also, iMac Core Duo sometimes over twice as fast as iMac G5, Intel iMac ‘simply the best’, and tech reviews gone bad.
• Computer benchmarks and other baloney: Don’t expect 2-4x performance from Intel Macs, Alan Zisman, Mac2Windows, 2006.02.06. The Intel Macs are faster than the models they replace, but only with software written for them. With older software, they’re actually slower than last year’s Macs.
• Tech: Booting an Intel iMac from an external drive, Jonathan Rentzsch, TidBITS, 2006.01.30. Intel Macs use a different partitioning scheme (GPT) than older Macs (APM), so you can’t simply update an existing drive – your must repartition it with GPT.
• Comparing Apples to Apples: When is Macintel faster? When does PowerPC make more sense?, Dan Knight, Mac Musings, 2006.01.29. Benchmarks show the Intel Core Duo flies through native code but plods through PowerPC programs. Will PowerPC or Intel give you the more productive workflow?
• Macintel stumbling block: Sometimes you need Classic, Jeff Adkins, Mac Lab Report, 2006.01.25. As nice as the new Intel Macs seem to be, the lack of any Classic environment makes it impossible for some people to upgrade.
• iMac 17″ Core Duo, Eric Bangeman, ars technica, 2006.01.17. An in-depth hands-on look at the new 17″ Core Duo iMac finds it lives up to its promise and Rosetta is very usable.
• The iMac 2006 value equation: Intel changes everything, Dan Knight, Mac Musings, 2006.01.11. The performance gain with Intel’s Core Duo CPU gives the newest iMacs Power Mac Dual performance at iMac prices.

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