11/14/2022 0 Comments Chaintech d33058 video card driverIt actually took a lot of detective work by some very savvy vintage computer forum members as well as getting the board to post and looking at the BIOS string to get any information on this board. This is interesting because first the BIOS string indicates it’s a BIOS from July 7th 1991 placing it pretty early for a 486 and second because there is NO information on the internet about this particular motherboard, Nothing except the posts made on various forums from me as I tried to identify it. The board itself is actually of interest being a (possibly) early 486 Chaintech 433SCL. The most common of these proprietary slots was the Opti Local Bus slot introduced by Opti, manufacturer of the Opti chipset among other things.īelow is a motherboard with an Opti Local Bus slot, two actually. Before this became standardized into what we know as VLB or VESA slots many motherboard and chipset manufacturers attempted to implement their own version each with different and incompatible cards and slots. The VLB slot was designed to take advantage of the faster speeds of the 486 and 486 motherboards offering faster performance then the older 16 bit ISA slots. Those really long brown slots that take the equally long cards. So what is Opti Local Bus? Basically it is a proprietary form of the VESA or VLB bus found commonly on many 486 motherboards. In this Odds & Ends I’m going to share with you two very unique finds that I acquired in the past few months of which very little information exists of and of which a lot of detective work and the help of some very knowledgeable people was necessary to even figure out exactly what I had. It seems much more likely that you’ll stumble on a rare video card or memory expansion card from that 386 you grabbed off Craigslist for $5 then the odds of finding a Little Samson in that NES you probably overpaid for on Ebay. Another great thing is that because retro computing is so much less popular than console collecting prices and availability are in general much better. Retro computing though seems to hold many more secrets that have yet to be revealed, rare expansion cards that had very low production runs or games that have fallen through the cracks of time and have been forgotten. Sure in the realm of video game consoles a rare Prototype will pop up time to time such as the SNES Playstation or some game that was almost translated into English but for the most part you need to be very lucky to come across something like that and by and large it feels like it has been talked about to death. One of the great things I love about retro computing and collecting is that it always seems like there is more to discover.
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