Looking for Performa / LC / Quadra 630 Technical Information
One of the Macs I’m most nostalgic about is the Performa 630 (and it’s many badge engineered siblings). It is a strange derivative of the LC 475, with many similarities, but with a large number of unusual and very specific expansion slots. As well as the LC 475’s LC PDS slot (the 32 bit version), it also adds… An AV slot, a UHF and FM module, a hardware MPEG decoder, a DOS card, a GIMO port and an IR port. It also has SCSI and IDE which can be useful, and a video chip that supports hardware scaling.
Some 630s were fitted with a very similar board also used in the Performa 580. The design is pretty similar, but helpfully provides a second RAM slot.
Technical Info Wanted
I like doing hardware and software projects with old macs but sadly, haven’t been able to find anything much beyond the Developer Note for the Performa 630.
In order of priority, if you happen to have…
- An ERS for the F108 Memory Controller chip used in the 630 and similar machines…
- An ERS for the Valkyrie video chip used in the 630…
- A schematic for the 630 logic board…
- Anything else similar, the general machine ERS, or technical documentation for other critical chips…
… I would be super interested in hearing. Please let me know. There is a contact form under “About” at the top of this page.