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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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 Posted: Sat Nov 19, 2016 3:06 am Post subject: AMI 386-XT Series 17 Motherboard What is it? |
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This is a strange one
AMI 386-XT Series 17
It has BOTH a 386 and a 286 on it. with chipsets for both
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Mr.Scott
Joined: 15 Jul 2014
Posts: 267
Location: Upstate NY USA
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| Posted: Sat Nov 19, 2016 3:53 pm Post subject: |
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AMI 386 MK III
Motherboard American Megatrends Series-17 for PC XT with Intel 80386DX-25 and 64 KB of cache (1990). Here it is used the very common chipset Chips & Technologies 82C20x for 286/386 together with two ASICs for cache control. Under the CPU you notice the brown connector for upgrading the processor with a board (daughterboard) i486. Despite the presence of the hooves on the SIMM 30-pin, it is still available, according to the custom of the time, the special connector for expansion cards of RAM.
Difference is, your's is using VLSI instead of Megatrends for cache control.
http://ummr.altervista.org/386MB2.jpg |
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CPUShack
Joined: 16 Jun 2003
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frag_
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Location: Estonia
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CPUShack
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