First post, by foxbat
My ATi Mach64 CT card has two jumpers described on the board as:
1. I/O JU7 (3 pin)
2. JU4 ENA INT (2 pin)
Can't really find anything about those. Only one place says something more: https://minuszerodegrees.net/manuals/Olivetti … 20computers.pdf on the last page as:
1. JU3:
I/O decode: Random
I/O decode: Block (Default)
2. Ju1
Disables the interrupt (Default)
Enables the interrupt
But what are they for? What they affect and change? What settings are for which conditions?