this post was submitted on 18 Oct 2025
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So like... What does the jumper do?
Many IDE cables used to come with 2-4+ daisy chained connectors allowing you to plug in multiple drives into a single cable on a single IDE bus.
This meant that you had to ensure any downstream HDDs would be configured as slaves to show up properly to the system.
You could either do this manually by setting the jumper to slave (usually just removing it) or setting the jumper to cable select which would automatically configure master slave drives for you.
Example for a Seagate drive:
In your case, you could either use the master select or cable select and it wouldn't matter since you only have one drive.