Owner`s manual

DRAFT

Chapter 1

Introduction

The VAX 6000 Model 600 processor is the KA66A. The KA66A processor

uses +3.3V power

, which is available on VAX 6000 systems that use the

H9657 cabinet or that have one of the cabinet upgrades described in this

manual installed. Section 1.1 tells how you determine whether +3.3V power

is available on the system you are working with.

If the system does not supply +3.3V power, you must tailor it so that it does

before you can install the KA66A processor, in one of two ways. The easiest

way uses the H9657-CX kit, which is supplied with all orders for KA66A

processors for upgrades from Model 200, 300, or 400 systems. You may

or may not need the H9657-CX kit. Section 1.2 describes the conditions

that determine whether to use the H9657-CX kit or the full power and

packaging upgrade comprising the H9657-CU kit.

This chapter describes the possible upgrade paths for installing the Model

600 processor and gives preparatory steps for all upgrade paths. Sections

include:

• KA66A Upgrade Paths

• Upgrading from a system without +3.3V Power: Comparing the H9657-

CX and H9657-CU Kits

The KA65A processor used in the Model 500 system also requires +3.3V power; other VAX

6000 systems do not.

Introduction 1–1