Owner`s manual

Chapter 1
Introduction
The VAX 6000 Model 500 processor is the KA65A, which must be used with
the MS65A memory.
The KA65A processor uses +3.3V power, which may or may not be directly
available on the system you are upgrading. If the system supplies +3.3V
power, upgrading is simple.
If the system does not supply +3.3V power, you must tailor it so that it
does before you can install the KA65A. There are two ways of doing this;
the easiest way uses the H9657-CX kit, which is supplied with all orders
for KA65A 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.
This chapter describes the possible upgrade paths for installing the Model
500 processor and gives preparatory steps for all upgrade paths. Sections
include:
• KA65A Upgrade Paths
• Comparison of the H9657-CX and H9657-CU Upgrades
• How to Use This Book
Introduction 1–1