Week Four Lecture - A+ Guide to Managing and Maintaining...

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1 A+ Guide to Managing and Maintaining your PC, 7e Chapter 4 Form Factors, Power Supplies, and Working Inside a Computer
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Objectives Learn about different form factors used for computer cases, motherboards, and power supplies Learn how electricity is measured and about electrical components Learn how to select a power supply Learn how to protect yourself and your equipment against the dangers of electricity Learn how to work inside a computer case Learn how to troubleshoot electrical problems A+ Guide to Managing and Maintaining your PC, 7e 2
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Form Factors Used By Computer Cases, Motherboards, and Power Supplies Computer case, motherboard, power supply – Interconnected system – Must be compatible A+ Guide to Managing and Maintaining your PC, 7e 3 Figure 4-1 Computer power supply with connectors Courtesy: Course Technology/Cengage Learning
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Form Factors Used By Computer Cases, Motherboards, and Power Supplies (cont’d.) Form factor – Specifies size, shape, and features of a device • Determined by motherboard Using the same form factor assures – Motherboard fits the case – Powers supply cords provide proper voltage – Motherboard and case holes align properly – Case and motherboard ports align – Wires on case match connections on motherboard – Power supply holes align with case A+ Guide to Managing and Maintaining your PC, 7e 4
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A+ Guide to Managing and Maintaining your PC, 7e 5 Types of Form Factors Intended use – Influences computer case, motherboard, power supply selection (form factor) Table 4-1 Form factors
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Types of Form Factors (cont’d.) ATX form factor – Most common – Motherboard dimensions: up to 12” x 9.6” – Versions • Original ATX form factor used P1 connector • ATX Version 2.1 specifications added 4-pin auxiliary connector • ATX Version 2.2 allowed for 24-pin P1 connector • Version 2.2 provides +12 volts, +5 volts, and +3.3 volts pins – Motherboard offers soft switch feature A+ Guide to Managing and Maintaining your PC, 7e 6
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A+ Guide to Managing and Maintaining your PC, 7e 7 Figure 4-2 The CPU on an ATX motherboard sits opposite the expansion slots and does not block the room needed for long expansion cards Courtesy: Course Technology/Cengage Learning
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Types of Form Factors (cont’d.) MicroATX form factor – Reduces total cost of a system FlexATX – Variation of MicroATX with maximum flexibility A+ Guide to Managing and Maintaining your PC, 7e 8
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Types of Form Factors (cont’d.) BTX (Balanced Technology Extended) form factor – Reduces heat with better airflow A+ Guide to Managing and Maintaining your PC, 7e 9
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Types of Form Factors (cont’d.) NLX (New Low-profile Extended) form factor – One expansion slot – Uses daughter card (or daughter motherboard) A+ Guide to Managing and Maintaining your PC, 7e 10
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A+ Guide to Managing and Maintaining your PC, 7e 11 Types of Computer Cases Computer case (chassis) – Houses power supply, motherboard, cards, drives
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This note was uploaded on 04/05/2011 for the course CINT 210 taught by Professor Endris during the Spring '11 term at Ivy Tech Community College.

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Week Four Lecture - A+ Guide to Managing and Maintaining...

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