8/30/2023 0 Comments Apple firmware 4.2.8 upgradeSo you likely have the correct if not only Firmware Update for the vintage cited. This update also adds support for additional security options that allow the Open Firmware to be The local hard disk, FireWire target disk mode, network startup, gigabit networking (on systems with gigabit hardware),Īnd system stability. Firmware Update 4.2.8 includes improvements to starting up Mac OS X from Macintosh Server G4, you must start up from a local Mac OS 9.1 or later writeable partition (not a CD or network disk)īefore following the update instructions. If you are using Mac OS X on your Power Mac G4 or ".The Power Mac G4 Firmware Update 4.2.8 will run only on Power Mac G4 and Macintosh Server G4 models withĪGP graphics running Mac OS 9.1 or later from a local hard disk. Is there a way to do this? Can Apple tech support help by "sending" 11.4 to my iMac even if there isn't a way for me to press buttons to do so?Īppears to be the archive page that my search had missed Īnother site offers the same file with link-back to Apple's: Waiting for that to happen seems far less feasible than updating my MacOS on the iMac to 11.4 to run the Migration Assistant with the same version on both machines, and worrying about my OS update on my schedule. I want to get my iMac running right before retiring my MacPro, which totally requires me running 11.4 until my audio software provider authorizes a later version of MacOS. My need to avoid bugs through ongoing work is much more important than getting "the latest jiffy spiffy" from Apple, whatever that is. However, I am an audio engineer, and my primary software is authorized only for use a few versions back. The directions from Apple tell me to update to latest version. I recently bought an iMac (2020), and I have a MacPro (Late 2013) I want to migrate from. I live in Manhattan, and I can sleep with the traffic on my street no problem, so this must be no minor noise! ($349 direct do I update to a specific version? Stability over novelty required Hi, Because it's in my bedroom, I can't sleep peacefully with it on at night. The only thing that aggravates me is that it's louder and spits out some noise around 16-17 kHz. After a restart, I checked the "About This Mac" box, and low and behold, I had the green light, "Processor: 1.5 MHz Power PC G4." Yippie! It's been running so smoothly for over a month-no problems. Nonetheless, I moved forward and installed the processor very carefully. Obviously, I got a previously installed or returned processor (not cool). Plus, the package seal had been opened, and the connector joining the fan had come off, so the posts were bent. The only thing I ran into is that the screwdriver OWC provided was just slightly too big for one of the screws. I used the included wrist grounding strap and made sure to reduce any static charge before touching the daughterboard. Whew! The actual replacing of the processor was fairly simple. Then I did the whole wiping, reformatting, installing, wiping again, and restoring. (I highly recommend making disc images using Carbon Copy Cloner, donationware from I made sure my OS 9 and OS X installer CD's were bootable. Note that you can reduce install time by installing minimal stuff though. No such luck, 'cause, at least for me, I got an unhappy dialog box saying I couldn't do just that, so I had to actually install OS 9. Now don't think you can cheat by booting from your OS 9 installer or restore CD and just copying the system folder to your drive. Thank goddess for having an upgrade disc, rather than having to download it from Apple's website and for those discs not being scratched or otherwise damaged. Then, install OS 9.0.4 onto one of my (newly formatted) partitions. AAARRRRRGHGHHHHH! So, this meant I needed to wipe my internal drive (both partitions) and re-initialize them with OS 9 drivers. And, to have OS 9 run on a partition, you have to have the OS 9 driver installed on that drive. Not just any old version of OS 9 will do either, it has to be OS 9.1 or higher. I found this out from the Apple support document the OWC manual refers you to (). And, you need to boot in OS 9 from a local partition, not just the installer CD. Now, to upgrade your firmware to version 4.2.8, you need to boot in OS 9. This is also the case for the Gigabit Ethernet and Digital Audio models of G4. What I didn't know is that I would have to upgrade my G4 firmware to version 4.2.8 before installing the new processor, since I owned an AGP Graphics G4 running firmware version 3.something. I was excited! The box arrived, and when I opened it, I thought, "How smart, they even included a screwdriver. I wanted more without having to buy a new computer, so I bought a 1.5 GHz G4 processor upgrade. "Oh yes, it's very simple!" said the guy on the other end of the phone at OWC.
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