Chapter 5- Supporting the Power System & Troubleshooting Computers

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If you need to recover data off a system that won’t boot, install the drive in a working system.


If you see smoke or smell burning, you should immediately open the case to try to identify the component that is causing it.


To move a hard drive to another computer for the purposes of accessing the data, you always need to first physically install it in a drive bay.


A clicking noise coming from a system could indicate that a hard drive is failing.


A Molex connector supplies +3.3V, +5V, and -12V voltages.


What is a typical symptom of a CMOS battery failure?

Time and settings lost

If you are trying move a hard drive from a non-working computer to a working computer for the purposes of accessing the data on the drive, what must you have?

An Administrator password before you can access data on the drive

What is an indication that an inadequate power supply is the source of an intermittent problem?

The power supply whines when you first turn on the system

A missing standoff could create what potential problem?

A short on the motherboard

If you suspect your system is overheating, how can you determine the CPU temperature?

Go into UEFI/BIOS setup and find the temperature monitors for the system

Which of the following is NOT a solution to an overheating problem?

remove the covers from empty expansion slots

What does a single beep or no beep imply during the startup of a computer?

All POST tests passed

If you see an error message that reads "Processor thermal trip error", what is the likely problem?

The processor has overheated

What should you do if the system continually reboots and you can’t read the error message produced on a blue screen?

Press F8 as Windows starts up

What component of a motherboard is not considered to be a field replaceable unit?


Why might you disable quick booting features in BIOS when you are troubleshooting a problem?

To see a full POST report

Which of the following protects your computer from brownouts or sags?


When testing a laptop power connector, how close should the voltage measured be to the accepted voltage of the laptop?


What is an auto-switching AC adapter?

An adapter that can use 110V or 220V AC power

One long and two short beeps when using an Award BIOS is an indication of what issue?

A video problem

Three long beeps during the POST sequence on an Intel BIOS are an indication of what type of issue?

keyboard controller problem

A PCIe 6/8 pin connector for providing auxiliary power to PCIe cards utilizes what voltage?


What Intel socket recommends the use of a liquid cooling system?


What is the most used rail on a power supply?


If the startup BIOS can’t find a device to use to load the operating system, what error message is likely to appear?

Fixed disk error

What are the two highest heat producing components in a system?

-Processor -Video card

What is a typical sign that a capacitor is bad or has failed?

-The capacitors are discolored -The capacitors have crusty corrosion at the base of the capacitors.

Depending on the manufacturer of the BIOS, what two different POST beep code sequences indicate a memory error?

-Continous short beeps -Continous three short beeps and then a pause

A cooler with heat pipes, which contain a small amount of liquid that becomes a vapor when heated, allowing heat to be drawn away from the CPU without the use of a fan is known by what two terms?

-passive CPU cooler -fanless CPU cooler

CPU coolers are typically made using what two different types of materials?

aluminum coppper

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