iMac G3 Update

1. September 2019 16:06 by Cameron in   //  Tags: , , , , , ,   //   Comments

It would appear that I was wrong about the flyback dying on my original Graphite iMac G3. I had installed the PRAM battery in the wrong direction so it was not saving any of the PMU data, preventing the CRT screen from turning on. After reseating the battery in the correct polarity and resetting the PMU a few times, I was able to get the CRT working again.

I received that second iMac G3, but it arrived in poor physical condition. The seller did not pack the iMac appropriately and the front bezel had shattered into dozens of pieces. I was able to get a refund for this iMac since it was in bad condition and shipping it back would have made the condition worse. Luckily, the CRT seems to still be intact on this iMac so I will be keeping it around for spare parts for a later date.

My original thought was to try and install the 250GB IDE HDD I had in the Graphite iMac, but there are no boot disks for the Intech Hard Disk Speedtools to properly format the larger disk. The installer for Mac OS 9 and OS X only saw the first 128GB of the drive. I played with the idea of using a second G3 Mac to format the iMac's internal HDD over FireWire, but ultimately decided to install my 128GB class 10 SD card instead. I now have Mac OS 9 and OS X installed on the same partition and can boot into either by switching the startup disk from within the OS. I haven't figured out how to get both OS 9 and OS X to list in the boot menu when holding down options on startup though. I read somewhere that you can press 9 or X at startup to boot the respective OS, but I have yet to try that.

My next goal for this iMac will be to get some more retro Mac PPC software and install a few games on the SD card. As the internal DVD drive doesn't eject disks correctly anymore, I will use an external FireWire drive or a second Mac in Target Disk Mode to install disk based games. Some of the games I will be installing include Sim Tower, Sim City 2000, and Fable The Lost Chapters.

In the spirit of vintage Macs, I recently purchased an eMac G4 1.25GHz. Upgrades on that one will be more of a hassle since Apple put access to the HDD and DVD drive on the bottom side of the logic board. I will probably tackle those, but only when absolutely necessary. I will be posting more about eMac soon.

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