PC Hardware A Beginner’s Guide

(^320) PC Hardware: A Beginner’s Guide filtering, regulation, isolation, cooling, and power management. Here is an explanation o ...

Chapter 14: Power Supply and Electrical Issues^321 set high (turned on) to indicate that the power supply is able to supply a go ...

(^322) PC Hardware: A Beginner’s Guide wiresattachedtotheconnectorrepresentedinFigure14-4hasaspecificpurposeandvoltage. When the ...

Chapter 14: Power Supply and Electrical Issues^323 Power Supply Form Factors Nearly all form factors also specify a power supply ...

(^324) PC Hardware: A Beginner’s Guide Figure 14-5. The PC XT power supply Figure 14-6. PC AT power supply ...

Chapter 14: Power Supply and Electrical Issues^325  Baby AT This is a smaller version of the AT form factor; it has the same he ...

(^326) PC Hardware: A Beginner’s Guide  WTX This form factor is designed for use in large workstations (theWstands for workstat ...

Chapter 14: Power Supply and Electrical Issues^327 The features of these form factors are compared in the following table: Form ...

Operational Ratings Manufacturers list a number of operational ratings in the specification lists of their power supplies.Thesei ...

Chapter 14: Power Supply and Electrical Issues^329  Noise The amount of sound measured in decibels (dB), such as electrical buz ...

(^330) PC Hardware: A Beginner’s Guide  Power Surge A power surge, which is also called an over-voltage event, increases the vo ...

Chapter 14: Power Supply and Electrical Issues^331 The power stored in the UPS’ battery is passed through an inverter that creat ...

(^332) PC Hardware: A Beginner’s Guide Figure 14-12. An uninterruptible power supply (UPS). Photo courtesy of American Power Con ...

Chapter 14: Power Supply and Electrical Issues^333 UPS Device Characteristics Here are some of the features commonly found on a ...

The watts and volt-amps ratings for PCs are usually different values. In most cases, the VA rating is never less than the watt r ...

To calculate the VA requirements for your system, you can gather most of the infor- mation you need from your system’s documenta ...

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PART III External Components 337 Copyright 2001 The McGraw-Hill Companies, Inc. Click Here for Terms of Use. ...

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CHAPTER 15 The System Case 339 Copyright 2001 The McGraw-Hill Companies, Inc. Click Here for Terms of Use. ...