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 7-8
Signal distribution (7.4), page 7-13
7.2
Power Supply Assembly/Control
These systems feature a power supply assembly that is controlled through programmable logic
(Figure 7-1).
Front Bezel
Power Button
Power On
110 VAC
AC Select [1]
220 VAC
NOTE:
[1] 300-watt power supply only.
Figure 7-1. Power Distribution and Control, Block Diagram
Technical Reference Guide
Power and Signal Distribution
System Board
CPU, slots, Chipsets, Logic,
& Voltage Regulators
+3.3 VDC
+5 VDC
Fan
PS On
Spd
Power Supply
Assembly
361834-001
+12 VDC
+12 VccP
-12 VDC
7
+3.3 VDC
+5 VDC
Drives
+12 VDC
7-1