Chapter 6 Power And Signal Distribution; Introduction; Power Supply Assembly/Control; Figure 6-1. Power Supplya - Compaq Deskpro EP 6233 Technical Reference Manual

Chapter 6
POWER and SIGNAL DISTRIBUTION

6. Chapter 6 Power and Signal Distribution

6.1

INTRODUCTION

This chapter describes the power supply and method of general power and signal distribution in
the Compaq Deskpro CONTACT Personal Computer. Topics covered in this chapter include:

Power supply assembly/control (6.2)

Power distribution (6.3)
General signal distribution (6.4)
6.2 POWER SUPPLY ASSEMBLY/CONTROL
The power supply assembly is controlled through an ACPI-compliant switch on the front bezel of
the system.
Front Bezel
Power On/Off
Power On
110/220 VAC
Figure 6–1. Power Supply Assembly and Associated Circuitry, Block Diagram
page 6-1
page 6-5
page 6-7
System Board
Slots, Chipsets, Logic
& Voltage Regulators
+3.3 VDC
PS Fan +5 AUX
On Off
Power Supply
Assembly
Compaq Deskpro EP Series of Personal Computer
First Edition – April 1998
Technical Reference Guide
+5 VDC
-5 VDC
+12 VDC
Drives
-12 VDC
6-1