IBM RT PC, Options Installation

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Section 7. Display Adapter Options 7-9
Use this table to set the mode switches when any of the following
conditions are present:
• The IBM Personal Computer Enhanced Color Display (5154) is
attached to the Enhanced Graphics Adapter.
• The IBM Personal Computer Enhanced Color Display (5154) is
assigned to the AT Coprocessor Adapter in dedicated mode.
• Another display is also installed and assigned to the AT
Coprocessor Adapter as a second display.
IBM 5154
Display
Assignment
IBM 5154 Display
Operating Mode or
Emulation Mode Sw1 Sw2 Sw3 Sw4
Primary 80 X 25 High
Resolution
Off On On Off
Primary 80 X 25 Enhanced
Color
On On On Off
Secondary 80 X 25 High
Resolution
Off Off On On
Secondary 80 X 25 Enhanced
Color
On Off On On
If you need to install the expansion card, go to “IBM PC Graphics
Memory Expansion Card” on page 7-10. If you need to install the
expansion kit, go to “IBM PC Graphics Memory Expansion Kit” on
page 7-12. To install the adapter, go to page 7-13.