PG_123 You're welcome!
Card7(Quantum3D Obsidian2 X-24):
Card installs fine, and is correctly detected by mojo.exe:
Hower, it throws this error:
This usually means that something is really wrong with it. I removed the daughtercard, and it throwed the same error.
I then checked all FBI and TMU pins, checked all the traces, measured all resistors and verified that all RAM pins are actually soldered. Everything was fine.
The FBI had some previous rework done, so I started with it. I removed the bottom 4 FBI RAM ICs, same error. Replaced the top 4 FBI RAM ICs, same error. Removed the FBI and then tried with a known good X-24 card in the system. It throwed the same error.
At this point I soldered back the FBI and original RAM.
The lesson here is that while the Q3D X-24 is almost identical to the Q3D 200SB, one is intended for the consumer market (X-24), while the other is intended for professional use.
If the professional driver is installed, it will NOT work with the X-24. It will identify that the card is not an 200SB/200SBi and throw an error that normally indicates a faulty card (instead of just saying "use the right driver" or "incompatible card").
While not a repair, I thought it is useful information. Use the appropriate driver or Fastvoodoo drivers (recommended only for testing, as using Fastvoodoo drivers on Q3D 200SB/200SBi/X-16/X-24 cards causes the TV out Chrontel encoder to get stupidly hot).
Here's the card with some new solder joints, working fine with the consumer driver: