Chapter 4 Supporting the Power System and Troubleshooting Computers 1. You decide to add three new hard drives to your computer so that you can increase the amount of storage on it. When you install the hard drives, you find enough SATA connections on the motherboard, but it is short one SATA power connector. What is the easiest way to add a SATA power connector to the system? Purchase a new power supply. a. b. Use a Molex to SATA power adapter. C. Use the Molex connector. d. You will not be able to add the SATA hard drive. C. 30% more d. 40% more 4. Sara works in the IT department for a large retail store. She has been testing a theory about why an error message keeps popping up on a coworker's computer when he tries to start Windows. She has hit a wall and doesn't know where to look next. Sara feels very frustrated with the problem. What should Sara do to help work out the solution? a. Write down everything. b. Divide and conquer. C. Don't assume the worst. d. Take a break and come back later. 2. James added a new video card and needs to get a power supply that will have enough power to run the new card. When researching the new power supply, what feature does James need to look for to make sure he has enough power to run his computer with the new video card? a. Form factor b. Wattage C. Dual voltage option d. 80 Plus Gold rating 5. Heather is troubleshooting a computer at her worksite. She has interviewed the computer's user and is currently trying to reproduce the problem the user described. Heather is in which step of the troubleshooting process? Establish a theory of probable cause. a. b. Test the theory to determine a cause. C. Verify full system functionality. d. Identify the problem. 3. When advising a customer on the purchase of a new power supply, you should explain that if the power supply runs at peak performance all the time, it will overheat. Additionally, power supplies can lose some capacity over time. Considering these conditions, you recommend that the customer purchase a power supply with a power rating higher than what the system currently uses. How much more wattage over peak do you recommend the customer purchase? 6. When you verify a system is functioning properly, you determine that the problem could have been prevented. What should you do to help the computer's user avoid having the same problem again? Lock the user out of the problem area. Instruct the user on how to prevent the problem. a. b. C. Don't tell the user anything so that he will have to call you back when the problem occurs again. d. Document the problem and hope the user reads your notes. a. 15% more b. 20% more