AOX/Kingston MicroMaster Processor Upgrade Card Part 2
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Can you review the dell optiplex i see in the corner.
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@uxwbill The lack of the MMSETUP program was a problem for me as well, no issues finding the ADF though. I still have that card along with a WD8003 ethernet card and a Adaptec AHA-1640 SCSI card out of a rare Leading Edge Model D3/MC clone should I ever get a MCA machine again.
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I see Dell Optiplex
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Nice monitor! It would look great with my AST Adventure 400 :)
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I had a PS/2 Model 50Z with the AOX Micromaster 386 upgrade board (pre-Kingston, 386DX 20Mhz I think). Certainly made the machine more usable giving it 8MB of RAM and the ability to run Windows 3.1 in 386 Enhanced mode. Looks like your card was configured to disable onboard memory, a wise choice because it slows down the system a lot to use planer RAM.
NJRoadfan 4 months ago
@NJRoadfan I'm running that same card in a PS/2 Model 50 (no Z). It's definitely an improvement, though I had a lot of trouble finding the option disk for that older card. Luckily, someone had it squirreled away.
It's been my experience that running with the planar memory enabled, especially in these machines with a 16/24 bit bus causes lockups and odd behavior after a while, in addition to the performance penalty. So I just leave it off.
uxwbill 4 months ago
Would anyone happen to know if this would work for PS/2 clones as well, or just genuine IBMs. I have an NCR 3421 - 386 sx20 system. This would be a great upgrade if I could find one. That and a microchannel sound card.
MarkNF82 1 year ago
@MarkNF82 In terms of electrical connection, I'm sure it would. I'm much less certain about the software side of things. NCR's reference disks behave differently than the IBM ones--and sometimes the difference is a big deal. This is especially true with the MCMaster, as I believe its utility disk modifies a number of files on an IBM reference disk.
uxwbill 1 year ago
I'd love to see how well an AMD 5x86-133 upgrade CPU would work on that card. It did wonders to my old 486 systems! Evergreen and Kingston were a couple of the companies that offered them. They had their own on-board voltage regulator, and were true plug-and-play in every system I tried.
Maxxarcade 1 year ago
@Maxxarcade Kingston actually sold some of the last ones with their "Turbochip" badged AMD 486/133 onboard. The later generation cards usually take the upgrade well, older ones (the 25/33MHz switchable ones in particular) don't always take it well.
uxwbill 1 year ago