How can you reset a forgotten BIOS supervisory password? Show
You just rebooted a PC and it displays a black screen with a white blinking underscore on the top left. What is the most likely problem?
Which of the following are possible reasons for motherboard failure? (Select all that apply.)
How can you tell if a lithium battery has been discharged? (Select the best answer.)
A PC reboots without any warning. You ruled out any chance of viruses. When you look at the motherboard, you see that some of the capacitors appear distended and out of shape. What should you do?
A computer you are troubleshooting won’t boot properly. When you power on the computer, the video display is blank, and you hear a series of beeps. What should you do?
Before installing a motherboard, what should you do? (Select the best answer.) ❍ A. Install the processor. ❍ B. Verify that it is compatible with the case. ❍ C. Employ ESD prevention methods. ❍ D. Test the motherboard with a multimeter. Which of the following are possible reasons for motherboard failure? (Select all that apply.) ❍ A. Power surge ❍ B. Manufacturer defect ❍ C. CD-ROM failure ❍ D. Incorrect USB device How can you tell if a lithium battery has been discharged? (Select the best answer.) ❍ A. Use a power supply tester. ❍ B. Check within Windows. ❍ C. Use a multimeter. ❍ D. Plug it into another motherboard. A PC reboots without any warning. You ruled out any chance of viruses. When you look at the motherboard, you see that some of the capacitors appear distended and out of shape. What should you do? ❍ A. Replace the motherboard. ❍ B. Replace the hard drive. ❍ C. Remove and replace the capacitors. ❍ D. Reconfigure the BIOS. A computer you are troubleshooting won’t boot properly. When you power on the computer, the video display is blank, and you hear a series of beeps. What should you do? ❍ A. Check power supply connections. ❍ B. Consult the vendor documentation for the motherboard. ❍ C. Remove all memory and replace it. ❍ D. Unplug the speakers because they are causing a conflict. If your laptop computer is running slower than usual, randomly freezes or restarts, or refuses to boot, you could be dealing with a failed capacitor on the computer’s motherboard. A system with failed capacitors can display a wide range of symptoms, some of which can be mistaken for other computer problems. There are two types of capacitors primarily used on computer circuit boards, water-based electrolyte, and polymer-based electrolyte. When a capacitor fails, the electrolyte inside vaporizes, causing the capacitor’s case to bulge and sometimes leak. Aside from visual and physical signs of failure, the most obvious symptom of a failed capacitor is the gradual diminishing of your computer’s stability over time. If your computer increasingly shuts down without warning, a failed capacitor could be to blame. To check for faulty or failed capacitors, use the following instructions.
If you find any capacitor that has visual damage, you can be nearly certain that the capacitor is the root of your system’s problems. If you find a failed capacitor on your motherboard, you can either replace the capacitor or replace the motherboard. If your computer is still operable, be sure to backup your data before attempting to replace a capacitor or the motherboard. To replace a faulty capacitor, you will need some soldering experience and equipment. To replace a failed capacitor, use this guide for recapping your own motherboard or device. To replace your computer’s motherboard, see the Computer Motherboard Replacement page.
What types of functions are performed by an MFD multi function device )? Select all that apply?Office multifunction devices (MFDs) handle all kinds of office tasks, such as copying, printing, scanning, and faxing, with a single device.
Why might you add an expansion card to a computer select all that apply?The purpose of adding an expansion card or board to a computer's motherboard is to add or expand some sort of functionality to the computer that it did not have before. Expansion cards are a way to upgrade a computer. Tower case desktop computers embrace the expansion card concept more than any other case type.
How do you diagnose thermal problems?How might you diagnose a thermal problem? Feel if the system is hot to touch, check temperature gauges, watch for cyclic lockup / reboot problems.
What are the main disadvantages of dial up modems select all that apply?What are the main disadvantages of dial-up modems? (Select all that apply.) Data transfer rates are low. Connection takes time. The telephone line can't be used for calls while data is being transferred.
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How can you tell if your motherboard has distended capacitors choose all that apply?
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