Chapter 6 Power Supply And Distribution; Introduction; Power Supply Assembly/Control - Compaq W4000 Technical Reference Manual

Chapter 6
POWER and SIGNAL
DISTRIBUTION

Chapter 6 POWER SUPPLY AND DISTRIBUTION

6.
6.1

INTRODUCTION

This chapter describes the power supply and method of general power and signal distribution.
Topics covered in this chapter include:

♦ Power supply assembly/control (6.2)

♦ Power distribution (6.3)
♦ Signal distribution (6.4)
6.2 POWER SUPPLY ASSEMBLY/CONTROL
This system features a power supply assembly that is controlled through programmable logic
( Figure 6-1).
Front Bezel
Power On/Off
Power On
110/230 VAC
Mains
F igure 6–1. Power Distribution and Control, Block Diagram
page 6-1
page 6-5
page 6-8
System Board
CPU, Slots, Chipsets, Logic
& Voltage Regulators
+3.3
PS Fan Fan
+5
AUX
On Off Spd
AUX
P ower Supply
Assembly
Compaq Evo and Workstation Personal Computers
Featuring the Intel Pentium 4 Processor
Second Edition - January 2003
Technical Reference Guide
+12.8 VDC
+5 VDC
+5 VDC
-5 VDC
+12 VDC
+12 VDC
-12 VDC
Drives
6-1