S21 - Troubleshooting hardware issues Flashcards
6 possible reasons a PC may not be booting up
1) Power button is not connected properly to the motherboard
2) Wall outlet is faulty
3) Power cable to PC is faulty
4) PSU faulty
5) Power cables from the PSU to components are faulty
6) Incorrect voltage settings on PSU
What can we use to test the power outlet
Multimeter / Voltmeter
When using the multimeter to test the power cable from the computer is faulty how many times do we need to do this and for what
3: positive pin, negative pin, grounding pin
When using the multimeter what will the result be that indicates a faulty cable
high number / infinite
What can we use to check the PSU
power supply tester
What is POST
A diagnostic tool, power on self test
When using POST what is the medium of communication
beeps
What are the POST beep codes specific to
Motherboard’s manufacturer
What can we use as the next step to POST
A POST-test expansion card
What does the POST-test expansion card allow for
Identifies which component on the motherboard is faulty and needs to be replaced
What is a crash screen
displays an error whenever the OS has an issue
Windows Crash screen name
Blue screen of death (BSOD)
Mac crash screen name
Pinwheel of death
Linux crash screen name
Kernel panic
What should you do if you find that the computer is overheating, suffering from thermal load
Turn the computer off, enter the BIOS or UEFI, look at the temperatures, change the fan modes accordingly / replace the fan / thermal paste
