Power Supplies Flashcards
You’re trying to troubleshoot a power supply issue with a voltameter. Which two of the following options are common voltages produced by desktop power supply? (select two)
\+/- 10 v \+/- 120v \+/- 5v \+/- 110v \+/- 12v
+/- 5v
+/- 12v
Which of the following statements that are true regarding power supply wattage? (Select two)
– The lower wattage rating, the more amps a power supply can deliver.
– The wattage for each individual circuit uses the formula: W = V x A
– A watt describes how much work or how much power can be so supplied to various devices
– A Systems wattage requirement does not depend on the amount of devices in the system
–A systems watching requirement equals the highest wattage requirement for a single individual circuit
– The wattage for each individual circuit uses the formula: W = V x A
– A watt describes how much work or how much power can be so supplied to various devices
Which of the following components converts AC to DC?
– Surge protector
– UPS
– Power supply
– Voltage regulator
Power supply
You have a desktop computer that you want to upgrade. You have several internal components and external components. You realize that you need to ensure that all your power supply can support all new devices. What should you do?
Upgrade to a power supply that provides more watts
To test the power supply, he is a multi meter to measure the voltage on in Molex hard disk drive connector. You know that the yellow wire in the connector provides 10 V DC. What should you do?
– Replace the power supply. It is failing
You are building a new computer from both new and used parts. The videocart is a PCIe videocard that requires an eight pin power connector. However, your power supply doesn’t have an eight pin PCIe power connector. Which solution would be the least expensive option for your system?
– Using adapter cable to connect to two 4-pin Molex connectors to the 8-pin PCIe connector
What does an ATX power supply do
Converts AC to DC
Selective voltage provided by ATX power supply. (select three)
5 7 24 3.3 9 12
5
3.3
12
To test a power supply, you want to use in voltameter to the voltage on a Molex hard disk drive connector. To do this, you need to turn the power supply on. Which pins on the 24 pin motherboard connector coming from the power supply can be shunted to turn the power supply on?
– Pins 15 and 16 – Pins 15 and 17 – Pins 17 and 18 – Pins 7 and 8 – Pins 16 and 17
Pins 15 and 16
Pins 16 and 17
You have a power supply configured to receive 110 V AC. How can you configure the power supply to receive 220 V AC?
Move the power switch on the power supply to the different voltage
Which kind of power connector is used on a PATA (IDE) internal hard disk drives and optical drives?
– Molex
–Mini Molex
– 68 pin ribbon
– 40 pin ribbon
Molex
You have a laptop with the dual core processor with the following characteristics
1024 MB L2 Cache
125 Watts
45nm process size
You want to upgrade the processor to one that uses less power. Which of the following characteristics would most likely identify a processor that uses less power?
– Single core processor
– 512 MB L2 cache
– 32nm process size
– 90 Watts
90 Watts
You need to replace the power supply in your home desktop computer. As you choose the replacement power supply, which of the following specifications are most likely to affect your choice?
– Form factor – Processor connector – Output voltage – Output wattage – Input voltage
– Form factor
– Processor connector
– Output wattage
You have a desktop PC that you have been using for three years in United States. You’re going on study abroad program for one semester and want to take your computer with you. After some research, you find out that the country where you be staying uses different voltage then what is used in United States. What should you do so that the computer can be compatible with the elect electrical power in Europe?
Move the switch on the power supply two different voltage
You have a motherboard it requires a 24 pin connector phone power supply. What types of power supply could you use with this motherboard? (select two)
– A power supply with 20 pin and 8 pin connector s
– A power supply with a 20 pin connector only
–A power supply with the 20 pin and a 6 pin connectors
–A power supply with a 24 pin connector only
–A power supply with a 20 pin and a 4 pin connectors
–A power supply with a 24 pin connector only
–A power supply with a 20 pin and a 4 pin connectors
