Chapter 6
FRUs Removal and Replacement
Overview
Introduction
This chapter describes how to remove and replace the field
replaceable units (FRUs) in the Model 90 system box. Appendix D
lists the Model 90 FRUs and their part numbers.
Each section describes the removal procedure for the FRU. Unless
otherwise specified, you can install a FRU by reversing the steps
in the removal procedure. The topics covered in this module are:
Precautions
System Preparation
Mass Storage Drive Removal
Power Supply Removal
Module Removal
SPXg 8-Plane Option
SPXgt 24-Plane Option
CPU Module
DSW21 Removal and Replacement
Bezel Removal
Clearing System Password
Testing the VAXstation 4000 Model 90 System
TURBOchannel Option
TURBOchannel Adapter/Option Removal and Replacement
6–1