IT 224 3.2.6
Which of the following voltages are provided by an ATX power supply
12 3.3 5
You have a motherboard that uses a 24-pin ATX connector. Which type of power supply could you use with this motherboard?
A power supply w/ 24-pin ATX connector only A power supply w/ 20-pin ATX and +4-pin connector
Which of the following functions does an ATX power supply perform?
Aids in thermal management Converts AC to DC
Which of the following devices use the 4-pin peripheral(Molex) connector?
Case fan PATA CD-ROM
Which power supply feature helps prevent circuit overloads by balancing the current flow?
Dual rail
An employee submitted a support ticket stating that her computer will not turn on. Which of the following troubleshooting steps should you take first?
Make sure the surge protector is turned on Make sure the power cord is plugged into the wall
You are testing the power supply in a PC system by measuring the voltage available on 4-pin Molex connector. The voltage on the red wire is +5.1 volts. What should you do?
Nothing, the power supply is working normally
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 the most likely to affect your choice?
Output wattage Processor Connector Form Factor
Which of the following compenents convert AC to DC
Power supply
You are servicing a client's computer that has been randomly restarting. You decide to test the power supply using a multimeter. You connect the positive lead to the yellow wire on one of the Molex connectors. Which action should you take based on the multimeter reading?
The power supply is failing and should be replaced
Your company relocated you to their UK office in London. You brought your personal computer with you and are in the process of setting it up. Your computer was previously configured to receive 110V AC, but the electricity in London uses 230 AC.
Toggle the voltage switch on the power supply to the different voltage
You need to replace the power supply in your home desktop computer. Which of the following specifications are the most likely to affect your power supply choice?
Type & number of connectors Form factor Output wattage
You have a desktop computer that uses a 250 watt power supply. You recently added 4-disk RAID 10 array to the system and now it spontaneously shuts down. What should you do?
Upgrade to a power supply that provides more watts.
You are building a new computer from both new and used parts. The video card is a PCIe video card that requires an 8-pin power connector. However, your power supply doesnt have an 8-pin PCIe power connector. Which solution would be the least expensive option for your system?
Use an adapter cable to connect two 4-pin Molex connectors to the 8-pin PCIe connetor
You have a desktop computer that you want to upgrade. You add several internal components and external components. You realize that you need to ensure that your power supply can support all of the new devices. Which power supply rating is used to determine this?
Watt rating
