Thanks for including those pictures - those use the same memory chips as the 1MB & 3MB cards - very interesting that these show up as the only chips for this. I am finally getting back to this project and I am still curious about whether there was ever a 7MB card with a denser chip configuration.
One of my 1MB cards seems to have gotten damaged (not sure how, but the VLSI chip has corrosion on about a 1/3 of the pins and it looks like it extends into the chip) and when plugged into the Mac Portable displays a sad mac and terrible chimes... the error codes change from time to time when it is booted with the bad card.
here is one
0000 0008
001F FF00
From the sad mac page (' ...This may indicate either a bad RAM chip or data bus failure.') - not a surprise. I am hoping that the memory chips are still good and that I can perhaps use them on another card that is good.
One of my 1MB cards seems to have gotten damaged (not sure how, but the VLSI chip has corrosion on about a 1/3 of the pins and it looks like it extends into the chip) and when plugged into the Mac Portable displays a sad mac and terrible chimes... the error codes change from time to time when it is booted with the bad card.
here is one
0000 0008
001F FF00
From the sad mac page (' ...This may indicate either a bad RAM chip or data bus failure.') - not a surprise. I am hoping that the memory chips are still good and that I can perhaps use them on another card that is good.