Dirty 27C4096 to 27C400 Adapter v3
A quick and dirty adapter that allows you to use a 27C4096 in place of a 27C400. Note this adapter is wider and taller. Amiga 500, 2000.
May fit the A600 or other systems that need a 27C400 pinout. You may need to remove the socket and solder this straight in, and or solder the 27C4096 into the adapter... It's up to you!
Rev 3 now has a jumper to allow support with rev 3, 4 or 5 Amigas. A17 was mapped differently on those early machines.
Set the jumper to 1-2 for rev 6 onwards.
Set the jumper to 2-3 for rev 3, 4 or 5.
13/05/2025 - Tested OK against rev 3, 5 and 6 using this rev 3 design.
Should work on the older rev 4 2000 as well.
Dirty 27C4096 to 27C400 Adapter v3
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
Raspberry Pi 5 7 Inch Touch Screen IPS 1024x600 HD LCD HDMI-compatible Display for RPI 4B 3B+ OPI 5 AIDA64 PC Secondary Screen(Without Speaker)
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Engineer
Jan 01,2026
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David BARON
Dec 28,2025
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Daniel Mackey
Dec 07,2025
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Federico Salis
May 26,2025
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Holger OnkelHolgi
May 05,2025
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Jan Thomas
May 04,2025
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