Chapter 7 Power Supply And Distribution; Introduction; Power Supply Assembly/Control - HP Compaq d330 DT Technical Reference Manual

Chapter 7
POWER and SIGNAL
DISTRIBUTION

Chapter 7 POWER SUPPLY AND DISTRIBUTION

7.
7.1

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 (7.2)

♦ Power distribution (7.3)
♦ Signal distribution (7.4)
7.2 POWER SUPPLY ASSEMBLY/CONTROL
This system features a power supply assembly that is controlled through programmable logic
( Figure 7-1).
Front Bezel
Power On/Off
Power On
110/230 VAC
Mains
1 10/220
Select
Switch [2]
F igure 7-1. Power Distribution and Control, Block Diagram
page 7-1
page 7-7
page 7-10
System Board
CPU, Slots, Chipsets, Logic
& Voltage Regulators
PS Fan
+5 +12.8
On Spd
AUX Vcpu
[1]
P ower Supply
Assembly
hp compaq d330 and d530 Series of Personal Computers
Featuring the Intel Pentium 4 Processor
First Edition - June 2003
Technical Reference Guide
+3.3
AUX [2]
+5 VDC
+5 VDC
-5 VDC
+12 VDC
+12 VDC
-12 VDC
Drives
7-1