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Sorry, I understood that you were using the 867 set to 1ghz. Lost in translation 😅

Sometimes the Vcore isn't enough. If you don't want to drop to 933, try increasing the Vcore by 0.05V or 0.1V. What's your current Vcore? Is it 7450 or 7455?

Have you tried lowering the CPU to 933MHz?

@joevt You've given me a lot to think about, and I finally figured out where the difference lies between "test1" and the rest. Coincidentally, for Test1 I used the card's original 64kb EEPROM, so I wrote "Test2" to that EEPROM and tried again. The result is much better, BUT I can only boot...

Yes, I always write the EEPROM to the TL866, sometimes to new ones. It's a process I've done many times, with other graphics cards and even SATA cards, and I've repeated it several times with this Radeon 9100. I also use low-temperature solder to avoid overheating. I haven't changed anything...

I can't say for sure what happened to the original PC dump, but regarding EEPROM writing, I always perform a verification after writing, sometimes more than once, to make sure it went well, so that step can't have failed. I was thinking about it yesterday, and I remembered that back in the...

Hello. I tested both 64kb ROMs, and the result is similar to the initial one. Test 1 seemed to provide information, although it wasn't working properly and only recognized 16MB of the 64MB. I've attached photos and the ATI Multi Dumps for both. Test2 Wikidor 64kb

Hi, I'm going to test this new ROM. To clarify: PC ROM 64kb Lila.BIN is a dump of the original EEPROM that came with the graphics card, using a TL866. PC ROM Dump is a dump of the original PC ROM, copied to a 128kb EEPROM using a TL866 and downloaded using ATI Multi Dump. Mac ROM Dump is a...

@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: