Compaq SLT 386s/20 Maintenance And Service Manual page 88

Chapter 6.2 COMPAQ SLT/286 SYSTEM BOARD
The COMPAQ SLT/286 system boards contain one jumper.
jumper positions and describes the function of jumper J1.
Figure 6-3 show the location of the jumper on the system board.
Table 6-2. Jumper J1 Settings - COMPAQ SLT/286 Personal Computer
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Jumper Position
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J1 1-2
J1 2-3 (default)
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NOTE: Jumpers E2, E3, and E4 are reserved.
for proper operation of the system board.
Function
Provides 8 MHz 80287 coprocessor configuration
Provides 12 MHz 80C287 coprocessor configuration
These jumpers must be installed
Table 6-2 lists the
Figure 6-2 and