05. Power Supply Unit (PSU)

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Power Unit (Power Supply Unit, PSU, PU) පරිගණක දෘඩාංග

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Presentation Transcript

Power Supply Unit:

Power Supply Unit + more

Power Supply Unit AKA: PSU Power Supply Power Unit:

Power Supply Unit AKA: PSU Power Supply Power Unit

Power Supply Types:

Power Supply Types Linear Power Supply Switched-Mode Power Supply (SMPS) More: http :// en.wikipedia.org/wiki/Switched-mode_power_supply Pros. Cons. and Comparison http:// en.wikipedia.org/wiki/Switched-mode_power_supply#Advantages_and_disadvantages

The Power Supply.:

The Power Supply. pentium II intel

The Power Supply:

The Power Supply FAN AC Receptacle On/Off Switch

Power Supply Input Voltage:

Power Supply Input Voltage 100 to 125 VAC @ 60 Hz 200 to 250VAC @ 50 Hz

Motherboard Form Factors:

Motherboard Form Factors AT-Type ATX-Type

AT Motherboard:

AT Motherboard 12” 13.5”

ATX Motherboard:

ATX Motherboard pentium II intel 9.6 ” 12 ”

ATX Mother-board:

ATX Mother-board

AT Power Distribution:

AT Power Distribution

Power Supply Output Voltages AT-Type:

Power Supply Output Voltages AT-Type +5 Volts +12 Volts – 12 Volts – 5 Volts

PowerPoint Presentation:

Power Connector

PowerPoint Presentation:

P9 P8 Black Wires Motherboard Power Connectors

Some connectors are held in place by a latch.:

Some connectors are held in place by a latch. Latch

PowerPoint Presentation:

P9 Ground Ground + 5V + 5V + 5V - 5V

PowerPoint Presentation:

P8 - 12V + 12V Ground Ground + 5V Power Good

ATX Power Distribution:

ATX Power Distribution

Power Supply Output Voltages ATX-Type:

Power Supply Output Voltages ATX-Type +5 Volts +12 Volts – 12 Volts – 5 Volts +3.3 Volts

PowerPoint Presentation:

ATX Motherboard Power Connector

PowerPoint Presentation:

20-Pin Power Connector

PowerPoint Presentation:

24-Pin Power Connector

PowerPoint Presentation:

2 X 10 ATX Connector 2 X 2 Connector

Edge View of Motherboard.:

Edge View of Motherboard.

PowerPoint Presentation:

A Second 2 X 2 Motherboard Power Connector Supplies Processor Core Power (+12 Volts)

The Power Good Signal:

The Power Good Signal +5 Volt signal generated by the power supply. It indicates that the power supply has passed its self test and that its output voltages have stabilized. Usually occurs within first 0.5 seconds. Prevents the system from running under bad or unstable power conditions.

Large Molex Connector:

Large Molex Connector

PowerPoint Presentation:

+5V +12V Ground 4-Pin Molex Connector

Berg Connector:

Berg Connector

PowerPoint Presentation:

+5V +12V Ground 4-Pin Berg Connector

PowerPoint Presentation:

Grasp the connector by the shell… Never by the leads.

Power Management:

Power Management Hardware Power Management Software Power Management

Advanced Power Management (APM):

Advanced Power Management (APM ) E enables the operating system to work with the BIOS to achieve power management. Replaced by ACP I Microsoft dropped support for APM in Windows Vista More: http :// en.wikipedia.org/wiki/Advanced_power_management

Advanced Configuration and Power Interface (ACPI):

Advanced Configuration and Power Interface (ACPI) Successor of APM An open standard for device configuration and power management by the operating system ACPI defines platform-independent interfaces for hardware discovery, configuration, power management and monitoring. The specification is central to Operating System-directed configuration and Power Management (OSPM) , a system implementing ACPI, which removes device management responsibilities from legacy firmware interfaces

APM vs. ACPI:

APM vs. ACPI APM vs. ACPI http ://www.thinkwiki.org/wiki/APM_vs._ ACPI Difference Between APM and ACPI ACPIhttp ://www.differencebetween.net/technology/software-technology/difference-between-apm-and-acpi/ ACPI http:// en.wikipedia.org/wiki/Advanced_Configuration_and_Power_Interface

Power Saving Modes:

Power Saving Modes Blank (Black) Screen Saver Display Off Sleep Hibernate Power States http://en.wikipedia.org/wiki/Advanced_Configuration_and_Power_Interface#Power_states Hybrid Sleep

PowerPoint Presentation:

Blank Screen Saver

PowerPoint Presentation:

Display Off and Sleep

PowerPoint Presentation:

Hybrid Sleep http:// en.wikipedia.org/wiki/Sleep_mode#Hybrid_sleep Sleep and Hibernation : FAQ http :// windows.microsoft.com/en-sg/windows7/sleep-and-hibernation-frequently-asked-questions Sleep (AKA: Stand By, Suspend)

Replacing the Power Supply:

Replacing the Power Supply

PowerPoint Presentation:

Disconnect the AC Power Cord.

PowerPoint Presentation:

On-Off Switch

PowerPoint Presentation:

Power to Motherboard

PowerPoint Presentation:

The Power Supply is held in place by four screws.

PowerPoint Presentation:

Power Supply

Reinstall the power supply.:

Reinstall the power supply.

Links and References:

Links and References www.google.lk https://www.google.com/search?q=Power+Supply+Unit www.duckduckgo.com https://duckduckgo.com/?q=Computer+Power+Supply www.wikipedia.org http://en.wikipedia.org/wiki/Power_supply_unit_(computer)

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