What is a jumper?
A jumper is a small (5 mm x 2 mm, typically) connector
that acts as a conductor for two or more pins on a system component .
Changes in the system hardware often require a change in the motherboard
jumper configuration. For example, when upgrading a CPU it may be
necessary to move a motherboard jumper to connect different pins to change
the internal clock setting .
ESD: Before changing a jumper always touch a bare metal surface on the
case to discharge any electrostatic build up before handling any board
components .
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