Im sorry to ask here, but it seems i have similar problems like you...
I have almost exactly setup (1200 towered in Power Tower), OS 3.9 with PPC 040, Mediator with ethernet and sound blaster cards and BVision.
My system hangs up just 1 or 2 minutes after finishing loading wb.
I get an annoying noise coming from the disk drive, like if it was expecting some disk to be inserted. I mean, nasty cliking noise all time, and in my screen i get a "nodos" icon...that sound makes me really nervous!!
Besides i cant seem to get the Bvision working properly.
I have fed the original floppy drive power connector, but i dont know what else to do.
I read somewhere that i have to give more power to the Bvision , i just dont know how!!!
Any guides please!!!
Regards!
Sebastian