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10
2.4 Quick References for Jumpers
In this manual, the term “closed” and “on” are used when referring to jumpers (or jumper pins) that are
active; “open” and “off” are used when referring to jumpers (or jumper pins) that are inactive. See
Figure
2.0a
and
Figure 2.0c
for examples of “on” and “off” pins and jumpers.
Jumpers and pins are connected by slipping the plastic jumper connector over the top of two adjacent
jumper pins (indicated by 1-2 or 2-3). The metal rod inside the plastic shell bridges the gap between the
two pins, completing the circuit. See
Figure 2.0b
and
Figure 2.0d
for more examples of 3-pin jumper
connections. NOTE: The small number “1” indicates pin 1.
The tables and maps on the following pages will help you set the jumpers for CPU speed, infrared, and
external connector pin assignments, among others. The miniature motherboard maps will help you locate
the jumpers on your board. Full page maps of the motherboard can be found on the next two pages.
2-pin jumpers
Figure 2.0a
(overhead view)
3-pin jumpers
Figure 2.0b
(overhead view)
off
on
1-2
2-3
open
1
2
3
1
2
3
1
2
3
Figure 2.0c
(front angle view)
Figure 2.0d
(front angle view)
1-2
2-3
open
off
on
2-pin jumpers
3-pin jumpers
1
1
