2025-01-07T21:16:42+03:00[Europe/Moscow] en true Define and describe the POST, How are POST failures commonly denoted?, What are 2 common reasons for a blank screen on boot?, Why might the BIOS time and setting be inaccurate?, Why might a system not boot to the OS?, What is a crash screen?, Define and describe BSOD, Define and describe SBOD, What may have failed in the event of BSOD on startup or shutdown?, What can you do if a system BSODs on startup?, What are 3 possible causes of SBOD?, What should you do if there is an SBOD?, What should be checked if there is no video output?, What should be checked if there is no power?, What might be wrong if the fans are powered but nothing else is?, What is the first step in addressing sluggishness?, What are 4 potential causes of sluggishness?, What should you do in the event of smoke or a burning smell?, What should you check first in the event of intermittent shutdowns?, True or False: Many things can cause intermittent shutdowns so troubleshooting should focus on deduction by identifying systems that are functioning, What can commonly result in intermittent shutdowns?, What should you check in the event of application crashes?, What might a rattling noise indicate?, What might a scraping noise indicate?, What might a clicking noise indicate?, What might a popping noise indicate?, What should you check in the event of a lockup?, What might cause a lockup?, What should you check in the event of continuous reboots?, What should you do in the event of continuous reboots?, What might cause inaccurate system clocks?, How can you reset the BIOS configuration when a CMOS fails? flashcards
CompTIA A+ Core 1: Troubleshooting Common Hardware Problems

CompTIA A+ Core 1: Troubleshooting Common Hardware Problems

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  • Define and describe the POST
    The Power On Self Test is an automated test that occurs whenever a device is turned on the confirms that all the main hardware systems are working
  • How are POST failures commonly denoted?
    With beeps or codes, the manufacturer will provide documentation for decoding these
  • What are 2 common reasons for a blank screen on boot?
    Bad hardware (video, CPU, RAM, display) and BIOS configuration problem
  • Why might the BIOS time and setting be inaccurate?
    Bad CMOS battery
  • Why might a system not boot to the OS?
    Improper boot sequence
  • What is a crash screen?
    A screen that displays after a critical error that denotes relevant error information
  • Define and describe BSOD
    Blue Screen of Death is the standard windows crash screen
  • Define and describe SBOD
    Spinning Ball of Death is a common indicator of failure in macOS
  • What may have failed in the event of BSOD on startup or shutdown?
    Hardware, Drivers, or Applications
  • What can you do if a system BSODs on startup?
    Revert the system to the most recent operable state, reseat the hardware, run hardware diagnostic software provided by manufacturer or BIOS
  • What are 3 possible causes of SBOD?
    Application stuck in infinite loop, bad hardware, slow paging to storage
  • What should you do if there is an SBOD?
    Restart the computer and check the console logs
  • What should be checked if there is no video output?
    The simple solutions first, is everything plugged in, is the computer configured to use that device, is the brightness all the way down, etc.
  • What should be checked if there is no power?
    Use a multimeter to find a power path, is the outlet good>PSU>Motherboard>Output device
  • What might be wrong if the fans are powered but nothing else is?
    Identify where the fan power is derived, the PSU may only be outputting low voltage or the motherboard may be broken
  • What is the first step in addressing sluggishness?
    Use task manager to identify resource utilization
  • What are 4 potential causes of sluggishness?
    Outdated OS and drivers, overutilized disk space, power saving mode, malware
  • What should you do in the event of smoke or a burning smell?
    Immediately disconnect power, wait for the system to cool down, then identify and replace all damaged components
  • What should you check first in the event of intermittent shutdowns?
    Check event or system logs
  • True or False: Many things can cause intermittent shutdowns so troubleshooting should focus on deduction by identifying systems that are functioning
    True
  • What can commonly result in intermittent shutdowns?
    Overheating
  • What should you check in the event of application crashes?
    Error messages, event logs, or a reliability monitor
  • What might a rattling noise indicate?
    Loose components
  • What might a scraping noise indicate?
    HDD failure
  • What might a clicking noise indicate?
    Fan misalignment
  • What might a popping noise indicate?
    Blown capacitor
  • What should you check in the event of a lockup?
    Search for any signs of life to identify which systems are still operating
  • What might cause a lockup?
    Outdated drivers or software, resource overutilization, hardware failures
  • What should you check in the event of continuous reboots?
    How far does the boot go before resetting
  • What should you do in the event of continuous reboots?
    Restart in safe mode, which will boot from the last known functional configuration
  • What might cause inaccurate system clocks?
    A bad CMOS battery
  • How can you reset the BIOS configuration when a CMOS fails?
    Shorting the CMOS or using a jumper