is the beginning of a digression about the possibility of rebuilding a DOLCH PAC 60 sniffer with "modern" components. In chats with kishy, bhtoofer, dfj, among others, it has become clear that this is not going to be a simple straightforward MB swap.
The motherboard is a Baby-AT form factor with a 486 CPU. The case is built with access to the bottom 6 expansion slots, which touch the top right corner of the case if you're looking at it straight on from directly behind the LCD, and with the carrying handle as "top". The dimensions are standard for Baby-AT at something like 34cmx21cm.
My goals are:
1. Little to no cutting of the case so the modifications can be a "clean" in appearance as possible with the case closed.
2. Keeping the 10.4" LCD (and almost certainly the ISA card that runs it)
3. As much processor power AND RAM as possible packed into this little guy to use it as a mobile PC for digital audio recording of myself and/or my band. (don't worry about specific hardware / software configs yet for the recording, first things first)
I like the rugged case, the size, and the aesthetic of the case for such a project, and will most likely ignore your suggestions if they blatantly contradict the goals listed above. I am, however, quite aware that there are serious obstacles to overcome to make this happen.
The board here
is really damn close, just 2-3 cm too tall to fit the case. A slightly smaller footprint board like this with the ISA slot for the old gfx card would be darn good, and then the only obstacle left would be getting the i/o routed out the side of the case (doable).
This ISA gfx card may not be essential to the equation, but the LCD comes from an era when all the necessary components to be "stand alone" and plug directly into a VGA signal were not implemented, and as such, many of those functions are BELIEVED and ASSUMED to be handled by this gfx card. If you know of a more modern card that's AGP or PCI and will without a doubt run the LCD from a DOLCH PAC 60, PLEASE let me know, as this could completely change the nature of the project.
This project could be really cool if it comes together, and I appreciate suggestions and (constructive) criticisms.