Recent content by indibil

@joevt, here's a summary of the test1 results. First, I booted as usual, with the Radeon 9100 without a display, alongside an ATI Rage Pro 128 PCI card with the VGA display connected. It boots, but when it gets to the OS9 desktop, it doesn't load. This symptom, which occurs when using another...

All those dumps were made by removing the EEPROM and reading with a TL866. The contents of "PC ROM 64kb Lila.BIN" are exactly as read by the TL866. And the ROMs tested were programmed with the TL866. Perhaps something is preventing the entire ROM from being read? If .properties shows 128kb, why...

Hi @joevt , it's working now, I followed your steps. But, could it be that it's not reading the EEPROM but the information from the GPU? Because I've run the .properties file both with the M25C10 MOD (disconnecting Vcc on the 74LVC574A) and with the "original" EEPROM, and I get the exact same...

I took a few minutes to test this out before getting down to my weekend work. I tried displaying the .properties in OF, but I'm not sure if I did it correctly; I've attached it. I also tried adding an M25P10 and simultaneously disconnecting Vcc on the 74LVC574A, but I get the same result and...

The PCB doesn't look like any of the other 8500/9100 boards I have; the others use M25P10s. I can try to check for continuity at U2, but I suppose I'd have to disconnect Vcc from both 74LVC574As to be able to use an M25P10.

Okay, let's see if I have time this weekend to investigate further. Perhaps it would be possible to replace the EEPROM with an M25P10 in U2?

It appears that the EEPROM addressing passes through these ICs, which seem to be VCS74AK2R020, but I'm unable to find any datasheet with this part number. A15 connects to pin 12, but A16 doesn't connect to any pin. Without desoldering it, pin 11 appears to be unconnected. Perhaps it should be...

Thanks for replying. Before seeing your response, I decided to flash the original PC ROM to a 128kb EEPROM to see what Apple System Profiler would show, and it shows exactly the same thing as with the Mac ROM we saw earlier. I use an Ati Rage Pro 1128 PCI to be able to view the 9100 AGP. I...

Hello. I recently acquired this 64MB Radeon 9100 (equivalent to a Radeon 8500LE), and just like I did with another 9100, I decided to flash it. The previous one worked with the original ROM by adjusting the speeds to 250/250. This graphics card came with a 64KB EEPROM, a PM39LV512, and...

Great job! Yes, it would be interesting if you shared it; I have two tray-loading drives and neither of them has a cover.

Yes, thank you, I understand. Sorry I didn't mention it. I suppose that 3D function can't be experienced without the original glasses. I was completely unfamiliar with those Formacs; I'd never even heard of them. I don't even know how they ended up in a DA.

This connector:

Wow! Thank you so much for all this information! I think the Formac will be a great addition to my collection; I'm going to keep it. I saw in a PDF that there was a card to add a "TFT" port; I suppose it must have been DVI.

Hi, lately I've been finding some very strange things, things I've never seen before. Some friends brought home a G4 DA, and when I opened it up, I found two PCI cards inside that I'd never seen before. The first is a Formac graphics card, which according to Google seems to be 128-bit and...

Thank you so much! I already have the drivers!!! I'll have to try it out one day :)