HP dc71xx Manuale Utente

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

These systems feature a power supply assembly that is controlled through programmable logic 
(Figure 7-1). 

System Board

Power Supply

Power On

CPU, slots, Chipsets, Logic,

Front Bezel

& Voltage Regulators

Assembly

Fan

PS On

+5 VDC

+12 VccP

Power Button

Spd

+12 VDC

-12 VDC

+3.3 VDC

Drives

+3.3 VDC

+5 VDC

+12 VDC

AC Select [1]

110 VAC

220 VAC

NOTE:

[1] 300-watt power supply only.