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  1. croissantking

    Macintosh IIci does not shut down

    I had the exact same issue when I first got my IIci, and a recap (including thorough board cleaning) fixed it.
  2. croissantking

    R7000 beige G3 issues

    Yes, this is what I found. But then I couldn't find a version of the drivers that would work with the R7000 and the G4 without locking up. I'm pretty sure I tried the earliest version of the ATI drivers that supports the R7000. Do go ahead and double-check though, as I could have got this wrong.
  3. croissantking

    R7000 beige G3 issues

    That’s very interesting. I gave up and put the G4 CPU back in the Yikes as I couldn’t find a solution. Maybe you will get further.
  4. croissantking

    R7000 beige G3 issues

    Do you mean you have a G4 upgrade as well, from a Yikes?
  5. croissantking

    PowerBook 5300c / 5300cs Restoration (Lid Fix)

    What does one do if they find their LCD beginning to develop vinegar syndrome?
  6. croissantking

    Powerbook 1400 16mb ram module upgrade to 24mb

    OK, cool. Maybe add some flux and try reflowing the connections on the donor chips. Also, use a multimeter to make sure there are no neighbouring pins shorted to each other. Failing all of that, I would try a different set of donor chips.
  7. croissantking

    Powerbook 1400 16mb ram module upgrade to 24mb

    Usually, a RAM card with a bad chip would result in death chimes. The 1400 series handles things differently, seemingly it's able to disable faulty banks and continue booting up. I'm not sure how it works things out, though, and it might disable the whole card.
  8. croissantking

    Powerbook 1400 16mb ram module upgrade to 24mb

    Also, I note there seem two be two different offsets on your card for each RAM chip. I also note that you've installed the donor chips differently from the factory ones. I am not sure if the offset pads are just to accomodate different sized chips or if it's for some other reason. It's worth...
  9. croissantking

    Powerbook 1400 16mb ram module upgrade to 24mb

    One of the chips could be faulty, or perhaps there is a dry joint.
  10. croissantking

    Powerbook 1400 16mb ram module upgrade to 24mb

    Here is an image of my homemade 24MB RAM cards. One was originally 8MB and the other was originally 16MB. They have chips on both sides.
  11. croissantking

    Powerbook 1400 16mb ram module upgrade to 24mb

    I have to admit that I'm still kind of confused by your explanation. Are you saying that some 16MB RAM cards are made up of only 4x4MB chips? Because I'm pretty sure that the 16MB RAM cards which use 28-pin TSOP chips, like @surfer150 's, are all composed of 8x2MB chips. I have never seen a 4MB...
  12. croissantking

    Coolest 68k Powerbooks to own?

    Now running 14MB RAM?
  13. croissantking

    Powerbook 1400 16mb ram module upgrade to 24mb

    I’m surprised it’s such a challenge as I was easily able to upgrade my two 16MB cards with empty pads. Perhaps I was just lucky.
  14. croissantking

    Powerbook 1400 16mb ram module upgrade to 24mb

    I’m intrigued by this. The RAM card has pads to support up to 24MB so the PCB clearly supports 3x8MB and would have been sold in this configuration. So if it is an issue with the way the banks are organised, then something else on the card must set this - perhaps a logic chip?
  15. croissantking

    Coolest 68k Powerbooks to own?

    I've been trying. It's really really hard, nearly all of them have tunnelling.
  16. croissantking

    PowerBook 1400 series ROM and RAM tidbits

    I thought I explained this in my original post, sorry it wasn't clear! Let me recap: - I started with a PowerBook 1400c/117 which I upgraded with a 166MHz CPU card underclocked to 133MHz (yes, you are correct, it will not work at 166MHz on a 117 board). - I obtained a bare 166 board with no...
  17. croissantking

    PowerBook 1400 series ROM and RAM tidbits

    Looking at the date codes of the various chips it looks the like 166 board (the one you call the ‘donor’, right?) is quite a lot newer than the ‘good’ (originally 117) board. So this rules out the idea that there was a bug that was fixed later on. Unless… the reworked PBX chip on the 117 board...
  18. croissantking

    PowerBook 1400 series ROM and RAM tidbits

    Lol no, they’re not socketed. My boards will be the same as yours, I had to desolder with hot air etc. Initially I planned to use the 166 board, but then the RAM issue came up. It’s sounding to me from this discussion that it’s a production bug rather than a faulty logic board.
  19. croissantking

    PowerBook 1400 series ROM and RAM tidbits

    Is the PBX the large chip with a foam pad glued to it? Interestingly, on my board which accepts 64MB RAM, this has been reworked/replaced - very crudely.
  20. croissantking

    PowerBook 1400 series ROM and RAM tidbits

    This is a good idea but I don’t know how to… The thing is that I can run both user cards no problem, as long as the factory card is not present. I wonder if it would count up to 60MB correctly, but I don’t have a 4MB factory card to test this. My user cards are both 24MB.
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