Recent content by obsolete

  1. obsolete

    You know, somebody should........

    This is a false assumption. Apple and their suppliers used several different models of cache SRAM, some of which, including the Samsung part number above, are compatible with both 3.3V and 2.5V I/O. However, all the ZIF boards run the cache chips' core and I/O supplies, VDD and VDDQ, at 3.3V.
  2. obsolete

    Radeon 9000 Pro AGP Flashing

    Cool! And it works well? Can you run OpenMark on it?
  3. obsolete

    Choosing a CPU upgrade for my Beige G3 266

    FWIW, there is a path to adding USB to your personality card thanks to @croissantking: https://68kmla.org/bb/threads/getting-g3-whisper-perch-usb-working.43681/ Saves a PCI slot for something else.
  4. obsolete

    Radeon 9000 Pro AGP Flashing

    Welcome to 68kMLA @pulu! I am glad to hear my information helped. Sounds like the journey to get your card working required some sisu :) The only picture I have found of a HIS 9000 Pro has 128MB VRAM, here; https://www.vgamuseum.info/index.php/cpu/item/117-ati-radeon-9000-pro Does your card...
  5. obsolete

    TashMachine: Verilog IWM Clone

    Great progress! Will be watching with excitement.
  6. obsolete

    Finally found a 1MB L2 cache for my 6100

    Wow, why was that such a big secret that someone saw fit to hit it with sandpaper? Good luck with the reverse engineering effort, I hope the GALs are unlocked!
  7. obsolete

    Griffin Technologies Mac·celerator Clock Accelerator for Quadra/Centris

    Very interesting, I never knew Griffin were involved in such shenanigans. The W42C26 is kind of an obscure chip. I found the datasheet and attached it. There's almost no information out there about IC Works. Apparently they were purchased by Cypress eventually.
  8. obsolete

    5 (five) PCI Slots in a PowerMac 4400/7220?

    Ah, that's 2 PCI slots + a Comm Slot II vs. 3 PCI slots, that makes sense. Not sure whether Tanzania has the same issues as Alchemy/Gazelle with PCI bridge chips, but there could be some issues with multifunction cards in the bridged slots of the 5-slot riser card.
  9. obsolete

    5 (five) PCI Slots in a PowerMac 4400/7220?

    Interesting find. Here's another one, in the USA: https://www.ebay.com/itm/175154682228 This is the one that would have come in the 4400: https://www.ebay.com/itm/164963926532 And this is...something else: https://www.ebay.com/itm/350262806527 I apologize for my ignorance, but I don't know...
  10. obsolete

    SE/30 recap - capacitor pads lifting, looking for advice

    That sounds like it smells terrible 🤢
  11. obsolete

    I got my #MARCHintosh off to a good start this week!

    MacEffects sells the case screws: https://maceffects.com/products/case-screws-for-all-in-one-macs-128k-512k-plus-se-color-classic
  12. obsolete

    Stabilizers & Hooks for Apple Keyboard

    Hey, that's a nice idea! Thank you for posting it. Do you plan to upload the 3D model files anywhere?
  13. obsolete

    Radeon 9000 Pro AGP Flashing

    Thanks for the data point! It has the 3.6ns RAM, so it should be a perfect match for the publicly available ROMs with 275MHz clock speed.
  14. obsolete

    Thanks! I think the Mac 7500s all have QFP RAM, so these three are all 9000s. Looks like all are...

    Thanks! I think the Mac 7500s all have QFP RAM, so these three are all 9000s. Looks like all are 64MB cards. The firmware from all three would still be interesting. I believe both copies on The Mac Elite must have come from a hynix -36 card like the one on the right, because the RAM clock speeds...
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  15. obsolete

    Does anyone have an ATI Radeon 9000 AGP card that looks like the first one in this post, with...

    Does anyone have an ATI Radeon 9000 AGP card that looks like the first one in this post, with the hynix -33 RAM chips? I believe they came in MDD G4 towers, and there was also a retail version. I'm looking for a copy of its firmware, but I can't even find one for sale anywhere.
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