I upgraded a G3 333mhz trayloader to 192 megs of memory. I also added OS X.1.3 ... on the original 6 Gig hard drive ... as an experiment with good results. (However it only recognized 1/2 of the 256 meg "Memory Upgrades by Add-on Computer" part # 12741 stick obtained locally.)
There is no firewire port on this trayloader model.
Recalling that the first partition needs to be less than 8 Gigs for the operating system, I had the notion of adding disc storage by utilizing an old PC Tower carcus with powersupply, some handy smaller drives (less than 128 Gig each), a non-powered hub inside the tower case linking to the USB 1.1 jack on the Imac.
Granted data transfer may be relatively slow from the multiple "slave" drives hoooked up in the old PC Tower.
(Think old PC power supply powering multiple relatively small harddrives; inexpensive IDE to USB adapters for each drive, and a non-powered usb hub.) I have a few old drives that could be recycled as external storage drives for non-critical things like music tracks, files useful to be able to load onto flash drives as needed to assist other users for a fee, etc.
Has anyone already tried this notion? Does the theory work in practice ok?
Any recommendations in addition to fans to keep the drives cool?
Note: After upgrading the internal Imac hard drive to a much larger drive with 2 or more partitions at some point, I will recycle that re-worked tower to ease the space crunch on a notebook computer. I do not need all my files when I go on a job ... just selected files. Plus there is music, etc. that fills up space. It would be nice to have all those still controlled by a singel control panel on the computer I am wotking on, still (:-)