Testout 3.4 Motherboard Troubleshooting

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You just replaced the motherboard in your computer. Your computer starts, but the hard disk light does not come on when the system is booting. What is likely the issue?

The system case hard disk LED connects to jumper pins on the motherboard. When the hard disk controller reads or writes the data to a hard disk, power is sent to the hard disk LED pins on the motherboard, causing the case hard disk LED to light up.

You have been using the same computer for several years. To improve performance, you decide to upgrade the processor. You check the motherboard documentation and purchase the fastest processor supported by the motherboard. However, when you try to start the computer it beeps regularly and nothing is displayed on the screen. What (2) things should you do?

Reinstall the old processor in the motherboard Flash the UEFI firmware Flashing the BIOS or UEFI firmware is often required to upgrade system components, such as to upgrading to a faster processor. If the motherboard documentation lists the processor as supported but it is not correctly recognized, updating the BIOS or UEFI firmware to the latest version may fix the problem. Before you can do this, you must reinstall the old processor in the system to get it back and running again.

What (2) things should you do if possible before updating the UEFI firmware?

Connect the computer to a UPS Backup existing UEFI software If possible, you should connect the computer to an uninterruptible power supply (UPS) before updating the UEFI firmware. Loosing power during the update process can cause catastrophic problems. You should also backup your existing UEFI settings before updating. Most BIOS/UEFI setup programs provide an option to save existing settings to a file..

When you try to boot your computer, it hangs after POST. When you access the UEFI setup program, you see that the date is several years behind and the time is set to 12:01am. What is likely the problem?

The motherboard battery has failed.

After arriving at work you turn on your computer to begin your day. Instantly you see smoke and small a strange odor coming from the computer. What should you do?

Shut off the system immediately.

A user has a 301 keyboard error on POST. What should you do?

Verify that no keys are being pressed down during POST.

You have been using the same computer for several years. To extend it’s service life, you decide to upgrade the processor. You check the motherboard documentation and purchase the fastest processor supported by the motherboard. However, when you start the computer, it beeps regularly and nothing is displayed on the screen and it doesn’t start.

Update the UEFI firmware.

Your motherboard has two memory slots and supports a maximum of 8 GB of RAM. After installing two 4 GB modules and booting up your system, you find that Windows only recognizes 3.5 GB of RAM. What should you do?

Upgrade to a 64-bit version of Windows.

A user calls to complain that her computer is behaving erratically. Some days it functions correctly, other days it crashes frequently. Upon inspection you notice some capacitors are bulging and are leaking brown fluid. What do you do?

Replace the motherboard.

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