Compaq dc5850 - Microtower PC Technical Reference Guide

Technical Reference Guide www.hp.com 7-1
7
Power and Signal Distribution
7.1 Introduction
This chapter describes the power supplies and discusses the methods of general power and signal
distribution. Topics covered in this chapter include:
■ Power distribution (7.2)
■ Power Control (7.3)
■ Signal distribution (7.4)
7.2 Power Dis tr ib u tion
Each form factor uses a unique power supply unit (PSU). The PSUs are not interchangeable
between the SFF and MT form factors.
These systems use a power supply assembly contained within the system chassis. Figure 7-1
shows the block diagram for power generation.
Figure 7-1. Power Generation Block Diagram
System Board
Power Supply
Power On
CPU, slots, Chipsets, Logic,
Front Bezel
& Voltage Regulators
Unit
PS On
+5 VDC
+12 VccP
Power Button
POK
+12 VDC
-12 VDC
+3.3 VDC
Drives
+3.3 VDC
+5 VDC
+12 VDC
90 - 264 VAC
5 AUX

Compaq dc5850 - Microtower PC Specifications

General

Memory	Up to 8 GB DDR2 SDRAM
Form Factor	Microtower
Audio	Integrated High Definition audio
Power Supply	300W
Processor	AMD Athlon X2, AMD Athlon, AMD Sempron
Storage	SATA 3.0 Gb/s Hard Drives
Graphics	Integrated ATI Radeon 3100 graphics
Optical Drive	DVD-ROM, DVD+/-RW
Operating System	Windows Vista
Expansion Slots	1 PCI Express x16, 2 PCI Express x1
Network	Integrated Gigabit Ethernet
Ports	1 serial, 1 parallel, 1 VGA, 1 RJ-45, audio in/out