C180

C100_110-160_180.FB 19 Tue Jul 16 06:36:50 1996

Installing Option Boards

Graphics Configuration Restrictions

The system supports only four graphics displays at a time. A “display” is a

video output port or connector. For example, the Dual Visualize Enhanced

Graphics Card (A4451A) is a dual display card. It has two external video

connectors so it accounts for two of the maximum of four displays. If you

installed two of these cards, they would account for the maximum of four

displays supported by the system.

The built-in graphics adapter accounts for one graphics display (graphics0).

If four displays are installed in the option slots, the built-in graphics adapter

is automatically disabled.

You may not install a dual display graphics adapter in option slot 1 and

option slot 3 at the same time. If you do, the graphics adapter in slot 1 will be

disabled.

You may not install a dual display graphics adapter in option slot 2 and

option slot 4 at the same time. If you do, the graphics adapter in slot 2 will be

disabled.

When a Visualize48Z (A4244A) two board graphics adapter is installed,

Only one other graphics adapter may be installed in the option slots. If the

highest numbered slot used by the Visualize 48Z board set is an even num-

bered slot, then you may only install a graphics card in the remaining odd

numbered slot. If the highest numbered slot used by the Visualize 48Z board

set is an odd numbered slot, then you may only install a graphics card in the

remaining even numbered slot. For example, with the Visualize 48Z board

set installed in slots 1 and 2, slot two is the highest numbered slot used and it

is an even numbered slot. Therefore you may only install an additional

graphics adapter in slot 3, which is the remaining odd numbered slot.

NOTICE: The A4077A Color Graphics Card, A4078A Dual Color Graphics Card,

A4079B HCRX-8Z graphics adapter and the A4071B HCRX-24 graphics

adapter with the A4072A Z Accelerator attached are not supported in the

Model C160/C180.