EDIT: Chris, due to a long-standing forum software bug, your System Profiler report did not appear this morning until after type my response. So you've basically done what I was asking. I need to research a little and see what options I can find. Your being in AZ makes the search much easier; we in the lower 48 are blessed with many good vendors.
Welcome!
Great to hear that my favorite Mac model has found another fan. I have two that still work--more than I can say for a couple of moribund Intel iMacs, G4s, and MacBook Pros I have lying about.
You are correct. Rev A does not support master/slave cabling on the ATA bus--you get one device on each of the two ATA/IDE buses (Rev B and C supported two per bus). The fact that it has a Zip raises questions. The orig RevAs had the HDD on one ATA/IDE bus and the optical drive on the other--two devices total--you have three. The ZIP makes me think someone has either changed out the ROM chip or is using the onboard SCSI bus for the ZIP or optical drive. Is this a desktop, all-in-one, or minitower?
desktop (DT):
all-in-one (AIO, aka "The Molar"):
mini-tower (MT):
[images from everymac.com]
Not a lot of difference in troubleshooting but choosing replacement drive cables if needed may require different lengths for the MT than the DT and AIO.
I think the best place to start is to get "under the hood" and look at how the existing storage devices are attached to the logic board. Here is a logic board diagram to help you navigate:
Note that the device buses are in the upper right corner of the the diagram.
Once you have traced what device is on what bus, let us know what you found and it will be easier to recommend an effective action. The required PCI cards are getting hard to find as are SCSI hard drives, so I really thing getting a roadmap of your baseline config will be the best place to start.
Although we are early in this process, here are some Beige tips to keep in mind:
- In this model a weak or dead PRAM battery can create a dazzling array of odd problems that may remind you of the movie, "The Exorcist." If anything gets weird, change the PRAM battery first. This is it: NewerTech 3.6v Lithium 1/2 AA PRAM Computer Clock Battery
- If you find you have a Rev B or C board, or upgrade the ROM chip to allow master/slave config, the rule is to put fast storage devices (hard drives) on one ATA/IDE bus and slow devices (optical drives, ZIPs, Jazz drives) on the other. The slowest device on an ATA master/slave bus dictates the bus speed.
- If you have a DT or AIO, they do not offer the cooling efficiency of the spacious minitower case and overheating can be a issue. Clean all the dust bunnies from the insides now and check about every six months. The inside of the fan plenum can look like a compost heap if not maintained. Many Beige DT and AIO owners found that replacing flat ATA cables with the round ones improved airflow for better cooling