05. Power Supply Unit (PSU)
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Power Unit (Power Supply Unit, PSU, PU) පරිගණක දෘඩාංග
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05. Power Supply Unit (PSU)
- 1. Copyright © 2007 Heathkit Company, Inc. All Rights Reserved PC Fundamentals Power Supply Unit + more
- 2. 2 Power Supply Unit AKA: PSU Power Supply Power Unit
- 3. 3 Power Supply Types Linear Power Supply Switched-Mode Power Supply (SMPS) o More: o http://en.wikipedia.org/wiki/Switched-mode_power_supply Pros. Cons. and Comparison o http://en.wikipedia.org/wiki/Switched- mode_power_supply#Advantages_and_disadvantages
- 5. 5 The Power Supply FAN AC Receptacle On/Off Switch
- 6. 6 Power Supply Input Voltage 100 to 125 VAC @ 60 Hz 200 to 250VAC @ 50 Hz
- 12. 12 Power Supply Output Voltages AT-Type +5 Volts +12 Volts –12 Volts –5 Volts
- 15. Some connectors are held in place by a latch. Latch
- 19. 19 Power Supply Output Voltages ATX-Type +5 Volts +12 Volts –12 Volts –5 Volts +3.3 Volts
- 23. 23 2 X 10 ATX Connector 2 X 2 Connector
- 24. 24
- 25. Edge View of Motherboard.
- 26. 26 A Second 2 X 2 Motherboard Power Connector Supplies Processor Core Power (+12 Volts)
- 27. 27
- 28. 28
- 29. 29 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.
- 32. Berg Connector
- 34. 34 Grasp the connector by the shell… Never by the leads.
- 35. 35 Power Management Hardware Power Management Software Power Management
- 36. 36 Advanced Power Management (APM) Eenables the operating system to work with the BIOS to achieve power management. Replaced by ACPI Microsoft dropped support for APM in Windows Vista More: http://en.wikipedia.org/wiki/Advanced_power_management
- 37. 37 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
- 38. 38 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
- 39. 39 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
- 40. 40 Blank Screen Saver
- 41. 41 Display Off and Sleep
- 42. 42 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)
- 43. 43 Replacing the Power Supply
- 44. 44 Disconnect the AC Power Cord.
- 45. 45 On-Off Switch
- 46. 46
- 48. 48 The Power Supply is held in place by four screws.
- 49. 49 Power Supply
- 50. 50 Reinstall the power supply.
- 51. 51 Links and References www.google.lk o https://www.google.com/search?q=Power+Supply+Unit www.duckduckgo.com o https://duckduckgo.com/?q=Computer+Power+Supply www.wikipedia.org o http://en.wikipedia.org/wiki/Power_supply_unit_(computer)
- 52. Copyright © 2007 Heathkit Company, Inc. All Rights Reserved PC Fundamentals End