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joevt's latest activity

  • J
    joevt replied to the thread Radeon 9100 that I can't flash.
    Do you remove the chip to flash it with the TL866? Perhaps the problem is when you reattach the chip.
  • J
    joevt replied to the thread The "820-0961-A" mystery G3 3.3V FlashRom.
    It would be nice if the flash ROM had a switch to enable built-in ROM in case the flash ROM has a bug and needs to be reflashed. While...
  • J
    joevt replied to the thread Radeon 9100 that I can't flash.
    That dump was bad - maybe because the TL866 had a bad connection. A copy of a bad copy is bad. Hmm. The TL866 should have been able to...
  • J
    joevt replied to the thread Radeon 9100 that I can't flash.
    Isn't the 128K because you installed a 128K EEPROM? The PC ROM was on the old 64K EEPROM? The PC ROM is invalid. It starts with 55AB...
  • J
    joevt replied to the thread Flashing an ACARD AEC6280.
    Link to the post? Try decompressing the zip in modern macOS before transferring to classic MacOS?
  • J
    joevt replied to the thread Radeon 9100 that I can't flash.
    That appears to be the correct device in Open Firmware. Both screenshots shows a ROM of 128K (in the reg property for the ROM BAR at...
  • J
    joevt replied to the thread Radeon 9100 that I can't flash.
    ati_hack_unique_9100_126_pciagp_full.rom appears to be one I created. It has an older ATY,Fcode version 1.85 and is missing AGP...
  • J
    joevt replied to the thread Radeon 9100 that I can't flash.
    The agp device is the pci host controller for the AGP slot. PowerPC Macs can have multiple PCI controllers each with their own PCI bus...
  • J
    joevt replied to the thread Radeon 9100 that I can't flash.
    My guess is that one of those empty locations on the PCB may be for a different type of flash chip, but I have no references to base...
  • J
    joevt replied to the thread Radeon 9100 that I can't flash.
    I copied your last image, cropped the chip, and went to Google Images to do a search for the image. It says this: It links to this...
    • Google search 74LVC574A.png
  • J
    joevt replied to the thread nubus scsi card any benefit?.
  • J
    joevt replied to the thread Macintosh IIcx custom ROM.
    68K Macs stopped at 2 MiB. The first 1MiB ROM is probably this one: 067c.15f1 1991-10 - 420DBFF3 - Quadra 700 & 900 & PowerBook 140...
  • J
    joevt replied to the thread My Mad B&W G3 Setup!.
    I don't know about tab completion in MPW. People made patches to MPW to add features. - PopupFuncs 2.8.1 - MPW Technicolor 0.9.6 -...
  • J
    joevt replied to the thread nubus scsi card any benefit?.
    A couple Mesh documents landed in the DingusPPC discord server. - Mesh SCSI Controller 5.3 - Mesh Users Guide 2.1 The SyncParms register...
  • J
    joevt replied to the thread Power Mac 7500-9600 Bus Speed Overclocking.
    Attached. These and the HammerHead ERS were posted to the DingusPPC Discord server. They must be to survive living behind a PCI bridge...
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