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  1. Pilgrim33

    LC III system software taking 80% of RAM

    I have an LC III running System 7.5.5 with 36 MB of RAM and the system software is using up ~80% of the RAM (30,699K, see first picture below). I'm running it off of a ZuluSCSI. However, when I boot off a disk image that uses 7.6.1, the system software uses only 2,640K of the RAM. With the...
  2. Pilgrim33

    PC133 RAM for a Tangerine iBook G3?

    I want to upgrade the RAM on my Tangerine iBook G3 (it has a 64MB RAM card installed). I believe it uses PC66 3.3V 144-pin SO-DIMM cards, but I was wondering if I can use a PC133 3.3V 144-pin SO-DIMM, 256 MB RAM card in it? Like this one: eBay 256MB 144 pin PC133 Alternatively, do I need to...
  3. Pilgrim33

    PowerBook 100 sad Mac bus failure conundrum

    I'm having trouble solving a sad Mac error with one of my PB100s. It was running fine, but I decided to clean the logic board, CPU card, RAM card, and bottom case because the person I purchased it from on eBay apparently had a cat and I'm allergic to cats (there were cat hairs in the laptop)...
  4. Pilgrim33

    PowerBook 520c Battery Connector Corrosion

    I am replacing the capacitors on a PB 520c and I am particularly concerned about the battery connection posts on the logic board. There is extensive corrosion on the connectors, with more on one side than the other. On the one that is worst, the corrosion is rock-hard and when I chip it off, the...
  5. Pilgrim33

    Cloning a PowerBook 100 HD

    New member here! Learning a lot from reading all the great posts. Apologies for all the questions below! I'm in the process of recapping my PB100, which has a 40 MB Quantum Go drive. I purchased this PB back around 1993 when they went on sale for ~$900 and I used it for a number of years. Now...
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