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Step 2 Set Jumpers,
J2 Display Type J2 is a two-pin single-inline berg.
Short pins 1-2 of J2 if using a CGA monitor.
Leave J2 OPEN (the factory setting) if using a monochrome, EGA, or VGA monitor. See the drawing on page
16 for the J2 location.
J4 Flash ROM Power J4 is a three-pin berg that selects the type of power provided to the Flash ROM.
Short pins 1-2 to select +12V.
Short Pins 2-3 to select +5V (the factory setting). See the drawing on page 16 for the J4 location.
J12 Hardware Reset J12 is a two-pin single-inline berg. Short J12 to reset the system.
J3 CPU Pipeline Mode J3 is a two-pin single-inline berg.
Short J3 to enable CPU pipeline mode (factory setting).
Leave J3 OPEN to disable CPU pipeline mode. See the drawing on page 16 for the J3 location.
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Continued
Apollo Motherboard User's Guide
Cont'd
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