At least this really looks more powerful und reliable than the previous one. Just keep us updated about the project. 
Nice choice of PSU there! just sad it's blue. But it can be painted gray. XD
You dont need to mod it to a 24pin atx, works just fine without it. But ofcurse wont hurt got get an extra 5v supply wire 
Hello
I have two L440GX boards, one of them the original from the Mercury. I think it will be more easy for you to show your Jumper settings, instead og all of us have to show you ours.
If i understand your german translation thingy right do you also have some truble with having cards in the fitst slots? Will that say that you dont have the brick in the four first slots?!? It's even written in the manual that the brick only works in slot 0-3. Pretty suprised if you have started baking the cards before making your motherboard work with the correct slots.
The L440GX slot 0 to 3 thingy is only for Rev4 200SBI cards, but yours also Rev4...
Before baking too mutch, please get that board working first, didnt you have two boards? Pretty sure you once told that. Maybe try to swap it.
Here is an old quote from 3dfx-Tweaker he once send me over PM.
PS: I read an Q3D add for the 200SBI stating that it supported 66mhz
pci, however all cards use the Intel (Digital) 21150-AA (or AB) PCI-PCI
bridge chip which supposedly only supports 33mhz. The 21150-BC does
support 66mhz (used on the intel V5 6K version).
But my board works with 200SBI boards in the first slots, so think it anyway might be your board. Will tomorrow find the BIOS version. Have just bought a second mercury system, will have to test it. If i get it to work right, can i as told make a deal for my spare AA module/risers. Just have multiple people intrested in it so dont påomise anything as of yet.
You can check the firmware revision on the back, i educated guess would be that your boards have 546-0014-04 formware as most black boards had, only a very few black boards came with 05 firmware. The green boards all have 06 firmware.
I think on the forst revision "04" 200SBI boards are unrecognizable from 200SB boards. Once read some Quantum3D referance in a driver, that first 200SBi boards requred rework to make them woth with regular Obisidian2 drivers. Still have a hard time searching it up again.
But what i think, is that slot 0 to 3 are hardcoded in the driver for the early boards, and that may be the reason for them toi not work on other boards. Softreality thoe came with SuperMicro boards, and the Mercury brick was also installed on those, but dont know their firmware, the only thing i know is that the two SoftReality Mercury systems known to date all have the problem with only wanna work in swap-plock not "Obisidian2 MgM 96" mode. Wich in my theory is cuz they used special drivers designed for those systems/slots. So when the harddrives was removed, and reinstalled with the default drivers. That they dont work. Im getting a SoftReality Mercury system home this month and have to test the theory, see if thay work on a l440gx board.
So before doing too mutch testing i would make sure the first two slots works first. Sadly cannot see my boards firmware, but i see its a revision 06. Also have a 08 board laying around thoe. My Jumper settings are the same as yours.
My black boards have 04 BIOS and my green ones have 06 BIOS
But black 200SBi boards with universal PCI comes with 05 BIOS, i have never seen a 200SBI with lower BIOS than 04. Know Gary has a prototype, but don't think he will let it go 
The Obisidian2 drivers was a example and only should be used if you wanna put your 200SBI in a Windows 98 machine etc... I also use the ones from Gary, wich BTW are the same as Falconfly have/had. Also uses Garys game pack, great for OpenGL games.
Yes, it might be the PCI-PCI bridges that your board dont like, same PCI bridges does 100SB,200SB,200SBI,X-24 and V56k Intel also use. I once had a 200Sb in my 0008 version of l440gx. But not sure if it was in the first two slots or not. Will try that when i get the time. Could be the 0008 version in general. My mercury system is from 1999 but still uses a early 0006 board, if that was cuz Quantum3D bought a larger stock of them, idont know. Just seem to always be 0006 in mercury systems for some reason.
