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Amiga Future

OpenAmiga600 FastRam Expansion

 
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HelmutH
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Joined: 26 Jul 2001
Posts: 3104
Location: 46047 Oberhausen

   germany

PostPosted: 21.05.2019 - 20:27    Post subject: OpenAmiga600 FastRam Expansion Quote



21.05.2019 OpenAmiga600 FastRam Expansion

https://github.com/SukkoPera/OpenAmiga600FastRamExpansion

OpenAmiga600FastRamExpansion is an Open Hardware 4 MB Fast RAM Expansion for the Commodore Amiga 600 Computer.

OpenAmiga600FastRamExpansion will allow you to add 4 MB of Fast RAM to your Amiga 600. This way you will be able to run more applications at once and more quickly. If you combine it with a chip RAM expansion, you will also be able to run almost all games supported by WHDLoad, pushing the smallest of the Amigas to its limits. The Fast RAM will be mapped to $200000-$5fffff, which means it will not interfere with the PCMCIA address space.

Memory Compatibility

The required RAM Type is 16 Mbit (1M×16) DRAM in the SOJ-42 package with up to 70-80 ns access time. It is 5v-only DRAM (not SD(!)RAM) often found in old 72-pin SIMMs, EDO chips might work or not. All chips having 8160 in their part number should be OK.

See OpenAmiga500 FastRam Expansion for a compatibility list.

RAM chips can either be soldered directly to the board or installed in sockets. While soldering the chips might not be trivial for the unexperienced, sockets for the SOJ-42 package are hard to find and not really easier to solder either, so the choice is up to you.

Quelle: AmigaWorld
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