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Re: Jumpers on Z-80 CPU Card

Interesting request Neil. Never tried that one. What exactly are you trying to do. Do you want to boot from an external ROM at 0H or somewhere else.
There probably is a way to fool the Z80 to boot externally.  Remember U18 forces NOP's on the bus (up to the required boot address).  I think if you remove it (and the ROM itself)  you may end up booting from 0H. However never tried that. Let's know how it works out.