{"id":3147,"date":"2025-10-22T19:19:17","date_gmt":"2025-10-22T18:19:17","guid":{"rendered":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/?p=3147"},"modified":"2025-10-22T19:19:17","modified_gmt":"2025-10-22T18:19:17","slug":"looking-for-performa-lc-quadra-630-technical-information","status":"publish","type":"post","link":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/?p=3147","title":{"rendered":"Looking for Performa \/ LC \/ Quadra 630 Technical Information"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Looking for Performa \/ LC \/ Quadra 630 Technical Information<\/h2>\n\n\n\n<p>One of the Macs I&#8217;m most nostalgic about is the Performa 630 (and it&#8217;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&#8217;s LC PDS slot (the 32 bit version), it also adds&#8230; 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.<\/p>\n\n\n\n<p>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.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Technical Info Wanted<\/h2>\n\n\n\n<p>I like doing hardware and software projects with old macs but sadly, haven&#8217;t been able to find anything much beyond the Developer Note for the Performa 630.<\/p>\n\n\n\n<p>In order of priority, if you happen to have&#8230;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>An ERS for the F108 Memory Controller chip used in the 630 and similar machines&#8230;<\/li>\n\n\n\n<li>An ERS for the Valkyrie video chip used in the 630&#8230;<\/li>\n\n\n\n<li>A schematic for the 630 logic board&#8230;<\/li>\n\n\n\n<li>Anything else similar, the general machine ERS, or technical documentation for other critical chips&#8230;<\/li>\n<\/ul>\n\n\n\n<p>&#8230; I would be super interested in hearing. Please let me know. There is a contact form under &#8220;About&#8221; at the top of this page.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Looking for Performa \/ LC \/ Quadra 630 Technical Information One of the Macs I&#8217;m most nostalgic about is the Performa 630 (and it&#8217;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 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false},"categories":[13,283,12,284],"tags":[692,690,691,308,693,536,286,496,535,694],"jetpack_featured_media_url":"","jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p7g9vY-OL","_links":{"self":[{"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=\/wp\/v2\/posts\/3147"}],"collection":[{"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3147"}],"version-history":[{"count":0,"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=\/wp\/v2\/posts\/3147\/revisions"}],"wp:attachment":[{"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3147"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3147"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/elephantandchicken.co.uk\/stuffandnonsense\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3147"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}