Noster wrote:
Hi
@Matt_H
> It's possible to upgrade a Commodore 386 bridgeboard to a 486, ...
HOW ? Facts, links, please...
Noster
Pretty simple actually. I sold two of these on eBay last year.
All you need to do is track down a Cyrix Cx486SRx² 25/50MHz chip
And shove it in your 386 Briodgeboard like so:
And the end result is you have a 486 SX50 bridgeboard that runs like a champ (32bit internal bus / 16bit external) and looks like this!
So... don't let anyone tell you it's impossible, because they don't know wth they are talking about. :lol:
(I had one of these inside my A4000 back in the day along with a nice little Warp Engine -- I really wish I'd hung on to one of my 4000's but at the time $ for beer at University seemed more important).[edit]
Ya know... come to think of it, one of these was inside my 3000T, I don't think the Bridgeboard worked with my 4000's due to the limitation it put on the Zorro slots which blocked my Warp Engine's RAM from showing up. From memory the BridgeBoard put a limitation of 6MB to zorro slot expansions. [/edit]
If you REALLY want to find old chips like this, you need to talk to recycling plants such as Kin-Enterprises who could possibly start pulling old 486 and overdrive chips off motherboards before they heat and shred them. I'll ask a local PCB recycler here if they can keep an eye out for me if you guys are seriously interested in finding a few 486 overdrive chips for 386 computers.
