Intergraph GLZ6, Setup & Maintenance Manual

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7
Chapter 2
Maintaining the System
This chapter describes opening the graphics tower to replace the
Rasterization Accelerator, Frame Buffer, and Expansion Adapter boards.
This chapter also describes opening the workstation base unit to replace the
Geometry Accelerator, Host Adapter, and VGA boards. Instructions for
troubleshooting the system and installing the GL display driver are also
included.
WARNING
AC filters, power supplies, and backplanes should always be serviced
by Intergraph field service personnel to guarantee safety.
Opening the Graphics Tower
Open the graphics tower when replacing the Geometry Accelerator board,
Frame Buffer board, or Expansion Adapter board. Use a quarter-inch
nutdriver to remove the screws mentioned in this section.
WARNING
Before opening the graphics tower, turn the workstation power off.
Leave the power cord connected between the graphics tower and the
AC outlet or UPS to maintain ground.
➤
To open the graphics tower:
1. Remove the screw from the top cover as shown in the following
figure. Remove the top cover by sliding it back and up.