CNIT 103 Questions

Question 6: You suspect that a power supply is faulty, but you use a power supply tester to measure its voltage output and find it to be acceptable. Why is it still possible that the power supply may be faulty?

Question 7: Someone asks you for help with a computer that hangs at odd times. You turn it on and work for about 15 minutes, and then the computer freezes and powers down. What do you do first?

A user complains to you that her system hangs for no known reason. After asking her a few questions, you identify these symptoms:

• The system hangs after about 15-20 minutes of operation.
• When the system hangs, it doesn't matter what application is open or how many applications are open.
• When the system hangs, it appears as though power is turned off: There are no lights, spinning drives, or other evidence of power.

You suspect overheating might be the problem. To test your theory, you decide to do the following:

1.You want to verify that the user has not overclocked the system. How do you do that?

2.You decide to check for overheating by examining the temperature of the system immediately after the system is powered up and then again immediately after the system hangs. Describe the steps you take to do this.

3.After doing the first two steps, you decide overheating is the cause of the problem. What are four things you can do to fix the problem?