The following tables lists the update or updates you may need, depending on the iMac model you own. Under each iMac model is the list of updates that should be installed on your computer. If you are unsure if your iMac has a particular update installed, download and run the update installer. If the update is present, the installer will alert you.

Updates can be located and downloaded from the Apple Software Updates Web site at http://www.apple.com/ swupdates. Use the name of the update as your search query.

233 MHz iMac running Mac OS 8.1 M6709x/A

Update Name	Notes
iMac Update 1.0 (no longer available from Apple Software Updates)	1	Click here for IMPORTANT Information on iMac Update 1.0
iMac v.34 Only Modem Script	2
Apple Modem Updater 1.3.5	3
iMac CD Update 2.0	4
iMac Firmware Update 1.2	10


233 MHz iMac upgraded to Mac OS 8.5 M6709x/A

Update Name	Notes
iMac v.34 Only Modem Script	2
Apple Modem Updater 1.3.5	3
iMac CD Update 2.0	4
Mac OS 8.5.1 Update	5
iMac Firmware Update 1.2	10
iMac Update 1.1	7,9


233 MHz iMac M6709x/B

Update Name	Notes
Apple Modem Updater 1.3.5	3
iMac CD Update 2.0	4
Mac OS 8.5.1 Update	5
iMac Firmware Update 1.2	10
iMac Update 1.1	7,9


266 MHz iMac: M7389LL/A Strawberry, M7392LL/A Lime, M7391LL/A Tangerine, M7390LL/A Grape, M7345LL/A Blueberry

Update Name	Notes
iMac Firmware Update 1.2	10
iMac CD Update 2.0	4


333 MHz iMac: M7441LL/A Strawberry, M7444LL/A Lime, M7443LL/A Tangerine, M7442LL/A Grape, M7740LL/A Blueberry

Update Name	Notes
iMac Firmware Update 1.2	10
iMac CD Update 2.0	4



All iMacs running Mac OS 8.6 only:

Update Name	Notes
Mac OS ROM 1.0 Update	11


iMac DV or iMac DV Special Edition with internal DVD-ROM drive :

Update Name	Notes
iMac DVD Update 1.0	12


Notes:
1. The contents of the iMac update 1.0 have been incorporated into Mac OS 8.5. You will not need to install this update on any M6709x/B (Rev. B) iMac or later, or on any original iMac that has been upgraded to Mac OS 8.5 in any language.


2. This file is only needed if you are having difficulty making and maintaining modem connections. It is installed by the Mac OS 8.5 that ships with the Rev. B iMac. It is not part of the retail Mac OS 8.5 package.


3. In early versions of the Rev. B iMac, the modems will not have the version 2.2 firmware installed. As such, you should run the modem updater located in the CD Extras folder of the System Software CD bundled with iMac.

4. The iMac CD Update 2.0 incorporates the iMac CD Update 1.0. Apple recommends all iMac users install the 2.0 update.

5. Apple recommends all Mac OS 8.5 owners install this update.

6. (this item left intentionally blank; no longer used.)

7. Customers outside the United States should use the localized version of the update to ensure proper operation.

8. (this item left intentionally blank; no longer used.)

9. The iMac Update 1.1 requires the prior installation of Mac OS 8.5 or 8.5.1, and the iMac Firmware Update. If you have an original iMac running Mac OS 8.1, you cannot use the iMac Update 1.1 until you update to Mac OS 8.5. Learn how to update to Mac OS 8.5 by clicking the appropriate link: Australia Europe North America .

10. The iMac Firmware Update version 1.2 should be installed on all iMac computers used in NetBoot client environments. The update also corrects a rare condition wherein SGRAM amounts over 2MB may not be properly identified at startup. This update incorporates the iMac Firmware Update 1.1.

11. Apple recommends that every iMac customer running Mac OS 8.6 install this update. For additional information on this update please read article 60408: " Mac OS ROM Update 1.0: Read Me "

12. iMac DVD Update 1.0 places new firmware on the DVD-ROM shipped in iMac DV and iMac DV Special Edition computers. This update improves the ability of iMac DV models to read certain CD-ROM discs and to determine if a disc is unreadable. For additional information on this update please read article 58557: " iMac DVD Update 1.0: Read Me "

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