Big snip. Okay, I just checked Gamba's page <http://home.earthlink.net/~gamba2/os8_se30.html#SIMM> to refresh my memory. Apparently there are three versions of the SE/30 ROM. One uses the PLCC44 chips, one uses the SOP32 chips and Gamba lists one with PLCC32 chips as well. If anyone, has one of this latter type of ROM SIMM, conversion would be relatively simple. I have never seen one of the PLCC32 type. (John Snook, if you've got a PLCC32 SE/30 module handy, I can supply the needed chips after all.) More snip Jeff Walther ------------------------------------------------------------- I think I do have a PLCC23 rom module. Please contact me off list. Also I found a bunch of obsolete 72 pin simm adaptors that we could use. These boards are .040" thick with the 72 pin simm fingers to plug into a ram slot. it also has a staggered set of holes that are connected one to each finger of the edge connector. I modified one to fit in the SE/30 ROM slot. I think it is possible to make a board to connect to this and hold the chips and circuitry. I'll see if I can get a photo. Or I can send you one. Also, do you have a copy of the schematics Gamba used? I'm interested I'm making some boards. johnsn
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