It’s a 68030 processor upgrade (with 68882 coprocessor). A very nice upgrade and should bring it close to an SE-30 in performance.
I’m not quite sure what the double-row header on the right side is for. - Dylan > On Sep 7, 2020, at 7:08 PM, Phil Hosie <skydreamk...@gmail.com> wrote: > > Hi all, > > Would appreciate some technical advice here. > > About 15 years ago I was starting to get a bit of a collection of vintage > compact Mac's and tinkered with them on a basic level with help from the > Larry Pina books. > About the same time, I was lucky enough to buy a Mac Plus (Beige colour) from > a recycling place for a paltry sum of $5.00. After bring it home, it didn't > boot up so I opened it up > and discovered this unknown board? inside it (see photos). It wasn't > connected and was still in its packaging so I removed it . Subsequently, I > just needed to connect a few wires together and surprise, surprise....the > unit booted up perfectly! > > I'm very curious what this board might be....and suggestions and knowledge > would be appreciated. > > Cheers, > Phil > > > -- > -- > ----- > You received this message because you are a member of the Vintage Macs group. > The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our > netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to vintage-macs@googlegroups.com > To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/vintage-macs > > Support for older Macs: http://lowendmac.com/services/ > --- > You received this message because you are subscribed to the Google Groups > "Vintage Macs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to vintage-macs+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/vintage-macs/30f54b23-f458-4198-b305-73ff96ad3c2do%40googlegroups.com. > <IMG_6340.JPG><IMG_6339.JPG> -- -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/vintage-macs/C9F19E78-7C77-4CE0-9C29-D20DF0C303CE%40mcdermond.net.
