I just picked up a "dead" Mac 128 that is quite interesting. There's an upgrade inside of it that adds memory and a SCSI port. The board is a Digi-Graphics "Simmer". I cleaned the machine up, checked all the soldering, re-seated everything and now it works. The other interesting thing about it is the fact that on the inside of the rear case there are no signatures. I have several other machines (128, 512 and Plus) and they all have the signatures in the case plastic. Anybody ever seen a compact Mac without them?
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Interesting. Have photos?
Is this upgrade one of those that clips onto the top of the 68000? I have a device like that which came out of an early Mac to add an internal hard drive. It came with a non-SCSI hard drive, I forget which brand. I've never used it because the oldest Mac I've ever had was a Plus. I had a 68020 accellerator for the Plus back in the day which was also a clip-on thing. What a kludge to get around the lack of slots.
[quote=Tom Owad]
Interesting. Have photos?
[/quote]
As it turns out they are there. They are so faint that they're only visable under the right light. I've never seen that before.
[quote=softwarejanitor]
Is this upgrade one of those that clips onto the top of the 68000? I have a device like that which came out of an early Mac to add an internal hard drive. It came with a non-SCSI hard drive, I forget which brand. I've never used it because the oldest Mac I've ever had was a Plus. I had a 68020 accellerator for the Plus back in the day which was also a clip-on thing. What a kludge to get around the lack of slots.
[/quote]
This one has many soldered wires to the logic board. I had to do some reflowing to make the system work, but now the SCSI and extra memory work perfectly.