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Transcript
CompTIA A+ Certification 801 Support Skills Unit 1.3 Power Supplies This courseware is copyrighted © 2013 gtslearning. No part of this courseware or any training material supplied by gtslearning International Limited to accompany the courseware may be copied, photocopied, reproduced, or re-used in any form or by any means without permission in writing from a director of gtslearning International Limited. Violation of these laws will lead to prosecution. All trademarks, service marks, products, or services are trademarks or registered trademarks of their respective holders and are acknowledged by the publisher. All gtslearning products are supplied on the basis of a single copy of a course per student. Additional resources that may be made available from gtslearning may only be used in conjunction with courses sold by gtslearning. No material changes to these resources are permitted without express written permission by a director of gtslearning. These resources may not be used in conjunction with content from any other supplier. If you suspect that this course has been copied or distributed illegally, please telephone or email gtslearning. Objectives • Identify the parts and connectors of a PC Power Supply Unit (PSU) • Select and install a PSU appropriate to a given PC system Unit 1.3 Power Supplies Slide 2 Electrical Circuits • Voltage – Potential difference – Volts • Current – Flow of electrons – Amps • Resistance – Conductivity – Ohms (R) • Power – Watts – Volts * Amps • AC versus DC Unit 1.3 Power Supplies Slide 3 Electrical Components • Conductor • Insulator • Semiconductor • Resistor • Diode • Fuse • Transistor • Capacitor Unit 1.3 Power Supplies Slide 4 Power Supply Unit (PSU) • AC – DC (3.3V, 5V, 12V) power conversion • Dual voltage (110 vs 240 VAC) options • Maximum power output / wattage / sizing • Form factors – ATX – SFX12V (smaller all round) – TFX12V (long and narrow) Unit 1.3 Power Supplies Slide 5 Connector Types and Voltages • • • • ATX – 20-pin P1 (±12V, +5V, and +3.3V) – 4-pin Molex (+12V and +5V) – 4-pin mini-Molex (or Berg) – 6-pin AUX (+5V and +3.3V) ATX12V v1.x – 4-pin +12V – SATA (optional) ATX12V v2.x – 24-pin P1 – SATA (+12V, +5V, and +3.3V ) – 6- and 8-pin PCIe (+12V) EPS12V – PSU Type CPU P4 / Athlon Legacy (preP4 / Athlon) ATX Good Incompatible ATX12V v1 OK Good ATX12V v2 Poor / Good Incompatible Core / Athlon 64 and Later Incompatible Incompatible Good 8-pin +12V Unit 1.3 Power Supplies Slide 6 Installing a PSU • Remove connectors • Unscrew from case • Install new PSU – set AC input type if manually switched • Make power and fan connections to motherboard and storage drives Unit 1.3 Power Supplies Slide 7 Review • Identify the parts and connectors of a PC Power Supply Unit (PSU) • Select and install a PSU appropriate to a given PC system Unit 1.3 Power Supplies Slide 8 Labs • Lab 2 Identifying PC Components Unit 1.3 Power Supplies Slide 9