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CPV1G

Power Supply Installation Fact Sheet 2.2.3

QuestionAnswer
True or false the power supply converts AC current to DC current? True
True or false, most power supplies have the capacity to receive both 110 and 220 volt power just by toggling a switch on the power supply casing? True
True or false, you can use this switch when using the power supply in other countries? True
True or false, when troubleshooting, make sure this switch is set to the correct voltage? 110 volts is used in the United States. 220 volts is used in many parts of Europe. True
True or false, power supplies provide 3.3, 5, and 12 volts? True
Each separate voltage output circuit is referred to as a? Rail
True or false, to avoid overloading one circuit, many newer power supplies have multiple +12 volt rails? True
True or false, much like a circuit breaker in a house, separate rails allow you to distribute the power load between multiple circuits to prevent any one circuit from becoming overloaded? True
True or false, each rail can power multiple devices? True
Power supplies are rated in what type of units? Watts
True or false, the watt describes how much work or how much power can be supplied to various devices? True
True or false, the more devices you have in your computer, the more wattage you will require? True
True or false, to calculate the system's wattage requirements: Find the wattage requirements of each individual circuit by multiplying volts by amps (W = V x A). Add the circuit wattage requirements together to find the total system wattage requirement? True
True or false, you must match the power supply with the correct voltage and connectors for your motherboard? True
True or false, power supply connectors are standardized following the ATX specifications? True
True or false, some computer manufacturers, such as Dell, produced power supplies with proprietary connectors? True
True or false, in some cases, the proprietary connectors are the same as ATX connectors, but the wiring positions might be different? True
True or false, when replacing a power supply, identify whether a standard ATX or a proprietary power supply is required? True
True or false, many power supplies have a switch on the back that turns the power on or off? True
True or false, symptoms of bad power supply include: The system does not start The system shuts off The system reboots Fan does not run or is noisy? True
True or false, never ground yourself when working on a power supply? True
True or false, use a voltmeter (multimeter) to measure the voltage on internal connectors? True
True or false, power supplies store dangerous voltages? True
True or false, never open a power supply. Instead, replace the entire power supply? True
True or false, the 20-pin connector is the main motherboard connector and supplies 3.3, 5, and 12 volts to the motherboard? True
True or false, On older motherboards, the CPU is powered through a 5 volt wire from the 20-pin connector? True
True or false, the 24-pin motherboard connector replaces the 20-pin connector in older motherboards? True
True or false, the additional 4 pins from the 24-pin connector supply an extra wire for 3.3, 5, and 12 volts? True
True or false, some power supplies use a 20-pin connector with an extra 4-pin connector? True
True or false, some 24-pin connectors allow you to disconnect 4 of the pins? True
True or false, you can plug a 24-pin connector into a motherboard using a 20-pin connector, leaving the 4 extra pins unconnected? True
True or false, starting with the Pentium IV processor (P4), CPUs required more power than could be provided through the main motherboard connector? True
True or false, starting with the Pentium IV, processors are powered using 12 volts instead of 5 volts. The 4-pin 12 volt connector supplies 2 additional wires of 12 volt power? True
True or false, starting with the Pentium IV processor (P4), This 4-pin connector is not the same as the 4-pin connector used in conjunction with the 20-pin motherboard power connector? True
True or false, the 8-pin EPS connector provides 4 lines of 12 volt power? True
True or false, the 8-pin EPS connector is used with some older dual processor systems or some newer quad-core processors? True
True or false, Depending on the processor and the motherboard, you might be able to use a single 4-pin connector instead of the 8-pin EPS connector? True
True or false, 8 pin EPS connectors are typically required for quad-core processors? True
True or false, Some power supplies have two 4-pin connectors (4+4) that are meant to be used together in the 8-pin EPS connector? True
True or false, newer video cards require more power than can be supplied through the PCI Express bus and from the main motherboard connector? True
The 6-pin PCIe connector, also known as a PEG connector
What does the acronym PEG mean? PCI express graphics
True or false, the PEG plugs in directly to the video card to supply the additional power? True
True or false, the 6-pin PEG connector provides up to 75 watts? True
True or false, instead of a 6-pin connector, some PCI Express cards require an 8-pin connector which provides up to 150 watts? True
True or false, some power supplies have a combined 6-pin and 2-pin connector (6+2)? True
True or false, The 4-pin accessory power connector is used by IDE hard drives, optical drives, and other accessory devices? True
What is another name for the 4-pin accessory power connector? 4-pin molex connector
True or false, the 4-pin molex connector provides both 5 volts (red wire) and 12 volts (yellow wire)? True
True or false, each power supply cable typically has multiple 4-pin molex connectors on the same cable? True
True or false, when connecting devices, try to balance the devices connected to each cable? True
The SATA power cable has how many pins? 15
The SATA power cable provides which voltages? 3.3, 5, and 12 volts
What is the purpose of The SATA power cable? Powering SATA devices
True or false, you can use True
True or false, when using a special adapter to convert a 4-pin Molex connector to a SATA connector on some power supplies, the connector only supplies 5 and 12 volts? True
True or false, The 4-pin mini-Molex connector provides both 5 and 12 volts and is used by floppy drives? True
The 4-pin mini-Molex connector provides which voltages? 5 and 12 volts
The 4-pin mini-Molex connector is used by which device? Floppy drives
What should you do if your power supply does not have some of the required connectors such as for the CPU, video card, or SATA devices? Purchase adapters
True or false, if your power supply does not have some of the required connectors such as for the CPU, video card, or SATA devices, you can purchase adapters to convert from one connector to another? True
Created by: john316