You are working on a computer that has a history of spontane

You are working on a computer that has a history of spontaneous reboots, and you suspect the ATX power supply is failing. You want to test the red wire connections, which should produce +5V, and the yellow wire connections, which should produce +12V. What tools can you use to perform these tests? (Choose two.)

A. Use a multimeter to perform a manual test.

B. Use a power supply tester to perform an automated test.

C. Use a multimeter to perform an automated test.

D. Use a power supply tester to perform a manual test.

Solution

A and B. A multimeter allows you to test each plug on the power supply manually to determine the level of its functioning, but you need to know how to specifically set the multimeter for the tests. A power supply tester runs those tests automatically, reducing the amount of testing knowledge you are required to possess. In both cases, be extremely careful when performing these tests, as working with a live power supply can be hazardous.