Skip to main content
Home Forums What is this (LC "prototype" upgrade)? — #8 What is this (LC "prototype" upgrade)? — #8
Post #8 by Trash80toHP_Mini
Post
Dunno, doubt it, download the pic and look at it under high magnification, no pins showing for a soldered CoPro in evidence there, just some apparently flat dots.

Reasons why I don't think there's a CoPro under there aside from possible clearance issues.

1) A Copro's about the LAST thing you'd solder onto a prototype of any kind, if that's even what this is.

2) A CoPro Socket for a VidCard makes sense, that's a feature added at almost no cost

3) CoPros were EXPENSIVE back in the day.

____ The only PDS Expansion Card I can think of with a standard equipment soldered CoPro was the IIsi NuBus Adapter

____ which was a very high dollar adapter for another higher dollarNuBus card. Made sense to have it standard.

4) that card hasn't got the rest of the components implemented yet and all those soldered over pads look much the same.

VidCards are for driving displays, the added cost of a CoPro would adversely affect sales. Adding a socket provision for adding one is a nice feature to advertise instead of a millstone around the Video Card's connector.

Give it a look and see, I can't think of a single reason to have an actual Floating Point Processor as standard equipment on a shipping video card, much less on a low production numbered test unit or a prototype.

YMMV [;)] ]'>

mp.ls