Compaq Deskpro Workstation AP230 - Chapter 7 Power Supply and Distribution; Introduction; Power Supply Assembly;Control; Figure 7-1. Power Distribution and Figure 7-2. Small Form Factor

Technical Reference Guide
Compaq Deskpro Personal Computers
Third Edition - April 2001
7-1
Drives
110/230 VAC
110/230 VAC
Select SW
Chapter 7
POWER and SIGNAL
DISTRIBUTION
7. Chapter 7 POWER SUPPLY AND DISTRIBUTION
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) page 7-1
♦ Power distribution (7.3) page 7-5
♦ Signal distribution (7.4) page 7-8
7.1 POWER SUPPLY ASSEMBLY/CONTROL
This system features a power supply assembly that is controlled through programmable logic
(Figure 7-1).
Figure 7–1. Power Distribution and Control, Block Diagram
Power Supply
Assembly
+5 VDC
-5 VDC
+12 VDC
-12 VDC
+5
AUX
Slots, Chipsets, Logic
& Voltage Regulators
PS
On
Fan
Off
+3.3
AUX
System/Backplane Board
Power On/Off
Front Bezel
Power On
110 VAC
230 VAC
Mains
Fan
Spd