Quote:
Originally Posted by aquanaut
I thought that the external unit was just a connection to the disk port and a drive as DF1. I'll stick with a single drive system for now.
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Look inside the external unit. You'll find two 74 series logic chips on a little board in there. These are needed for DF1 to work. In big box amigas, the same kind of logic is on the motherboard and it is enabled by setting a "df1 enable" jumper. On the A500/600/1200, there's only enough logic on the motherboard for DF0: and nothing more.