This chapter is from the book
This chapter is from the book
This chapter is from the book
Cram Quiz Answers
1. C. Although there might be a Windows application that monitors the battery, the surefire way is to test the voltage of the lithium battery with a multimeter. A CR2032 lithium battery is designed to run at 3 volts (and they often ship at approximately 3.3 volts). Some UEFI/BIOS programs can also monitor the voltage of the battery.
2. A. You should replace the motherboard if it is damaged. It would be much too time-consuming to even attempt replacing the capacitors and probably not cost-effective.
3. B. You should check the BIOS version and consult the documentation that accompanies the motherboard. You might need to go online for this information. You can also try performing a POST analysis to discern the problem. The issue could be video based, or RAM based, but the beep code should help identify the problem.
4. B. Check connections first as they are a common culprit.
5. A. If the CPU is running beyond the recommended voltage range for extended periods of time, it can be a sign of a failing CPU. If the computer won’t boot at all, another problem might have occurred, or the CPU might have already failed. Low case temperatures are a good thing (as long as they aren’t below freezing). Spyware is unrelated in this case.
6. C. Because the computer is being used in a warehouse (and a warehouse is often a fairly dirty environment), you should use compressed air on the RAM slot and clean the memory module with contact cleaner. Clean out all of the dust bunnies within the entire computer. Using MemTest86 or another memory diagnostic tool is another good answer.
7. C. The best thing to do in this situation is to install heat sinks on the RAM modules. On older computers, the memory controller in a northbridge doesn’t usually overheat because it already has a heat sink; on newer computers, it is within the CPU. A CPU can have only one fan. You can’t install more (although an additional case fan might help). The chipset also usually has a heat sink.
8. A. If you are sure that the RAM is compatible and the system doesn’t recognize it during POST, try flashing the UEFI/BIOS. It could be that the RAM is so new that the motherboard doesn’t have the required firmware to identify the new RAM.
9. A. You should test the computer with a PSU tester. This can tell you whether the power supply functions properly. You already know that the AC outlet is functional, so there is no reason to use another outlet. The computer would still turn on if the RAM wasn’t seated properly. A UPS won’t help the situation because it is part of the power flow before the power supply.
10. A and D. The two components that could cause the system to shut down are the power supply and the CPU fan. Check the CPU fan settings and temperature in the BIOS first before opening the computer. If those are fine, you most likely need to replace the power supply. The RAM, video card, and hard drive should not cause the system to suddenly shut down.
Now we are getting deep into troubleshooting. This was a longer chapter (for this book at least), and we recommend that you review it carefully. Great work so far!
