First post, by Turboman
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Hey guys, I'm ready build my best 386 that I can do, I have these boards and so far I'm leaning towards the PC Chips M321 Rev 2.7, this one can take 256kb and also can be write back.
The Ali board is from one of my older threads that one I recovered from a scrap pile it only had a tiny bit of corrosion but it's acting strange.
When I ran speedsys it took forever to benchmark and when it got done it has a score of 1.7 for the AMD 40mhz 😕 I'm not sure what's wrong with it. Bad resistor or regulator maybe?
also trying to do cache upgrades on these boards I need 16K x 4 and 8K x8, preferably 15ns or less, I found these that should work for my 8K http://www.aliexpress.com/item/IS61C64AH-15N- … 2285624797.html the 16K I need is 24pin.
I found this for the PC Chips, Ver 2 in stead of 2.7 but looks the same. http://stason.org/TULARC/pc/motherboards/I/IL … -321-VER-2.html
The MB-1333C/40C-CH, which is also PC Chips, it's displaying 35mhz instead of 40 and the cache is setup for 128k but on the boot screen it only reads 64k and in speedsys it also reads 64k, I'd like to upgrade it to 256k but I'm not 100% sure since I can't find much info on it. I found this MB-1333C-CH/1340C-CH which is very similar but not sure if jumpers are the same. http://museum.ttrk.ee/th99/m/A-B/30648.htm
This M326 Rev 5.2 is interesting it has a newer style bios from 94-96? like you find in later 486 boards it has 128K soldered onto the board, I like this board but I don't think it will be better then the M321
http://stason.org/TULARC/pc/motherboards/U/UN … -326-VER-2.html