HP Dc5850 Technical Reference Guide: HP Compaq dc5850 Series Business Desktop - Page 75
Power and Signal Distribution
UPC - 884962022993
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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 Distribution 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. Front Bezel System Board Power Button Power On CPU, slots, Chipsets, Logic, & Voltage Regulators 90 - 264 VAC POK PS On +3.3 VDC 5 AUX +5 VDC +12 VDC +12 VccP -12 VDC +3.3 VDC +5 VDC +12 VDC Power Supply Unit Drives Figure 7-1. Power Generation Block Diagram Technical Reference Guide www.hp.com 7-1