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[chrisNova777]

need this specific card for my G3 450 B+W
the newer ones i have dont want to play nice with my board for wahtever reason and i neeed to be able to dual boot between x + 9  on this machine thats the whole point of a G3/G4 imho

i have a 9200 pci but it seems to be too much for this machine i get problems booting up maybe because its not the full mac rom in the cards that i have. probably.

anyway its also known as a XVR-100 used for graphics on sun microsystems servers back in the day if anyone has one on the cheap for me please hook me up!!!

i alreayd tried a radeon 7000 by sapphire with 64MB ram and it didnt work with the proper rom either i dont think (prob 64kb eeprom) need the full rom (128kb) for this machine to properly support both 9 + x.

[chrisNova777]

but if i use it with an incomplete rom i cant see the boot up screens in macos9You hit the nail on the head. This is the infamous "64KB vs 128KB" flashing dilemma that everyone in the vintage Mac community runs into with PC-converted ATI cards.If you use a reduced/incomplete ROM to fit the card onto a standard 64KB physical flash chip, you will lose the early Open Firmware boot screens. Your monitor will remain completely black or asleep from the moment you press the power button, right through the "Happy Mac" or grey Apple logo phase. The screen will only suddenly "wake up" and display an image once Mac OS 9 hits the desktop and loads the system-level ATI extensions.Understanding why this happens helps determine the available workarounds for your system:Why the "Reduced ROM" Blinds Your BootThe Size Problem: An official, retail Mac Edition Radeon 7000 requires a 128KB ROM chip. However, 95% of cheap PC Radeon 7000 cards only have a tiny 64KB EEPROM chip soldered onto the board.What Gets Cut: To make the Mac firmware fit onto that tiny 64KB PC chip, creators of the flashing files had to strip out the NDRV (Native Driver) resources. The NDRV contains the basic instruction set that talks directly to Apple's Open Firmware before an operating system even exists.The Result: Without those resources, Open Firmware has no idea how to talk to the video card. You cannot see the boot picker (holding Option), you cannot use target disk mode, and you cannot see errors if Mac OS 9 crashes while loading its initial extensions.Your Options if You Want the Boot Screen BackIf not having a boot screen is a dealbreaker, you have a few classic vintage Mac paths forward:1. Hunt Down a Specific PC Model with a 128KB ChipNot all PC cards were built cheaply. Certain variants—most notably the Sun XVR-100 (which is just a rebranded Sun-spec Radeon 7000 PCI card)—built for enterprise workstations shipped with a full-size 128KB ROM chip right from the factory. If you flash a full Mac Edition ROM onto one of those, it fits completely and gives you flawless Open Firmware boot screens.2. The Soldier's Route: Swap the Physical ChipIf you or a friend are comfortable with a soldering iron, you can buy a pack of cheap 128KB flash chips (like the SST39VF010 or similar compatible chips). You desolder the original 64KB chip from the PC Radeon 7000 board, solder the new 128KB chip in its place, and flash the full, unmodified retail Mac ROM.3. Keep Your Original Rage 128 Installed (The "Two-Head" Trick)Because the Blue & White G3 has multiple PCI slots, you can actually keep your original, factory ATI Rage 128 card installed in the dedicated 66MHz slot.Plug your monitor into the Rage 128 when you need to do system maintenance, select boot drives, or rebuild your desktop.Once you boot normally, Mac OS 9 will see both cards, allowing you to use the Radeon 7000 PCI in the second slot for actual desktop use and gaming acceleration.Are you planning to flash a PC card yourself, or are you looking at buying a pre-flashed one on an auction site?If you are buying one, you can ask the seller specifically if it uses a "reduced ROM" or a physically upgraded "128KB chip"!