Well, this is interesting. Has anyone ever taken a really close look at the beige G3 mobo?
I've got a spare I was using for my Wallstreet VRAM hack, and I noticed that there's a jumper near PCI slot C1 labeled "Mac Supply" and "PS/2 Supply". PS/2 Supply is set on both of my boards... Shades of CHRP!
Something else that's interesting is that the perch slot connector is the same connector used for the x100 PowerMac PDS. In fact, a 6100 right angle adapter can be used to tilt the personality card 90 degrees (so that the board "hangs" down toward the bottom of the case). Of course, the personality card is too large to actually fit in that configuration, but it might be good info for folks doing case hacks on with the beige G3 mobo.
Another thing is that there's aparently a space for a PC-style floppy drive connector (but not when the Mac style floppy connector is installed - the two overlap each other).
But what's MOST interesting is the blank cache DIMM slot! Just north of the CPU is an empty pad for a standard PCI Power Mac cache DIMM! I wonder... If I were to install such a connector and DIMM, would it appear to the Mac as L3 cache like on other PCI PowerMacs when you don't remove the on-board L2 cache before installing a G3 upgrade?
Hmmm.... I smell a hack coming on...