How to Troubleshoot Common PC Hardware Problems

How to Troubleshoot Common PC Hardware Problems

In the fast-paced world we live in, computer problems can be a significant roadblock to our productivity and daily routines. Whether it’s a minor glitch or a complete system crash, these issues can strike at any time, leaving us scrambling for solutions. Before seeking professional help, it’s worth exploring the DIY approach to troubleshooting.

In this article, we’ll guide you through common PC hardware problems, providing insights on how to diagnose and potentially fix issues on your own. From understanding Windows glitches to addressing battery or hard drive concerns, this list aims to empower you to tackle the most common computer woes and, in some cases, spare you the need for frantic support searches.

What does PC Hardware Troubleshooting Mean?

PC hardware troubleshooting involves identifying and resolving issues with the physical components of a computer system. This can include problems with the motherboard, CPU, RAM, graphics card, storage devices, and other hardware components. The goal is to diagnose and fix issues that may be causing malfunctions, errors, or failures in the computer’s hardware, ensuring proper functionality.

Importance of PC hardware troubleshooting

PC hardware troubleshooting is crucial for several reasons:

Diagnose Issues:

Identify and understand hardware problems that may be causing malfunctions or performance issues.

Save Costs:

Resolving hardware issues early can prevent the need for costly repairs or component replacements.

Optimize Performance:

By addressing hardware problems, you can ensure that the computer operates at its best, enhancing overall system performance.

Minimize Downtime:

Timely troubleshooting reduces the downtime caused by hardware failures, ensuring a more reliable and efficient computing experience.

Prevent Data Loss:

Some hardware issues can lead to data loss. Effective troubleshooting helps safeguard important files and information.

Extend Hardware Lifespan:

Regular maintenance and prompt troubleshooting can extend the lifespan of hardware components, saving you from premature replacements.

Common PC Hardware Problems And Their Fixes

Here are some of the common PC hardware problems and their fixes:

PC Overheating

Excessive heat in your PC can lead to sluggish performance and frequent crashes, potentially causing permanent damage to components. Two primary causes include a malfunctioning cooling system or the PC generating heat beyond the cooling system’s capacity.

Troubleshooting Tips:

  1. Check Fan Functionality: Ensure your PC’s fan is operational. If it malfunctions, leading to inadequate ventilation, seek professional repair.
  2. Avoid Blocking the Ventilation: Avoid placing your PC on soft surfaces like beds or blankets, which obstruct airflow. Opt for a hard surface, such as a wooden table or laptop tray, to maintain proper ventilation.
  3. Regular Cleaning: Remove accumulated dirt to prevent overheating. Desktop users can clean their PCs easily, while laptop users may prefer professional servicing.
  4. Reapply Thermal Paste: Reapply thermal paste between CPU/GPU and heatsinks to facilitate efficient heat dissipation. Aging thermal paste can compromise the cooling system’s effectiveness. If issues persist, consider this step.

Dysfunctional USB Port

If your USB port appears to be malfunctioning, it may not necessarily be broken. Explore the following solutions to address this issue:

Troubleshooting Tips:

  1. Restart the PC: Often, a simple PC restart can resolve various issues, including problems with USB ports.
  2. Uninstall USB Port Driver: To uninstall the USB port driver, follow these steps;
  3. Press Windows + R, enter `devmgmt.msc` in the Run dialog to open Device Manager.
  4. Expand “Universal Serial Bus controllers.”
  5. Right-click on the USB Host Controller entry, select Uninstall.
  6. Repeat for all USB Host Controller entries to uninstall drivers.
  7. After deletion, restart the PC for automatic driver reinstallation, fixing any driver-related issues.
  8. Disable USB Selective Suspend: Follow these steps to disable the USB selective suspend;
  9. Press Windows + R, type `powercfg.cpl` to open Windows Power options.
  10. Click “Change plan settings,” then “Change advanced power settings.”
  11. Expand USB settings and disable USB selective suspend.
  12. Restart the PC to check if this resolves the USB port issue.
  13. Re-enable USB selective suspend if the problem persists, especially if battery power conservation is crucial.

PC keeps disconnecting from WiFi

If your PC frequently disconnects from WiFi despite a functional network, the network card might not be receiving sufficient power due to a built-in power-saving feature. Follow these steps to disable the feature:

Troubleshooting Tips:

  • Navigate to “Advanced settings” in the Power Options.
  • Expand “Wireless Adaptor Settings” and then “Power Saving Mode.”
  • Set Power Saving Mode to “Maximum Performance.”

PC Beeps

When your PC beeps, it’s a communication from the motherboard about potential issues. While difficult cases may require professional help, here are two common problems with possible DIY solutions:

Troubleshooting Tips:

Problem 1: Out of Place RAM

If your PC beeps 2-3 times and refuses to boot, it may indicate loose or misplaced RAM. Here’s how to fix it;

  • Remove the RAM, clean the slot with a cotton bud, and reinsert the RAM.
  • Apply equal pressure on both ends to ensure a secure fit.
  • Close the clips tightly; even a slightly loose RAM won’t function properly.

Problem 2: Recently Added Hardware

Newly added hardware can cause beeping; incorrect installation or damage might be the culprit. Here’s how to fix it;

  • Remove any recently added hardware and check if the issue persists.
  • If the PC functions correctly afterward, reinstall the hardware correctly or seek professional assistance.

PC Fans Not Working

When one or more fans in your PC aren’t working, consider the following steps:

Troubleshooting Tips:

  1. Clear Dirt Accumulation:
  2. Open the PC and inspect for dirt accumulation on the fans and other components.
  3. Use a compressed air can or a leaf blower to clean the fans and ensure optimal airflow.
  4. SpeedFan App (If Dirt Isn’t the Issue):
  5. If cleaning doesn’t resolve the problem, you can use the SpeedFan app to diagnose and control fan functionality.
  6. Ensure that your PC motherboard supports fan control for the app to be effective.

PC Not Using A Portion Of Ram

If your PC isn’t utilizing the full amount of installed RAM, follow these steps to address the issue:

Troubleshooting Tips:

  1. System Configuration Adjustment:
  2. Press Windows + R, type `msconfig` in the Run dialog, and hit Enter to open System Configuration.
  3. Move to the “Boot” tab and click on “Advanced options.”
  4. Check the checkbox next to “Maximum memory” and enter the total amount of RAM installed (in MBs).
  5. Click OK and restart the PC to apply the changes.
  6. CPU Core Utilization Check:
  7. While in System Configuration, also check the checkbox next to “Number of processors.”
  8. Ensure your PC is utilizing all available CPU cores by setting it to the maximum number.
  9. Reinstall RAM (if the problem persists):
  10. If the issue persists, there might be a chance that one of the RAM modules isn’t installed properly.
  11. Try reinstalling the RAM modules securely to ensure proper connections.

Overworking PC Fan

If your PC fan is running at full speed despite normal temperatures, you can manually control it using the SpeedFan app. Follow these steps:

Troubleshooting Tips:

  1. Temperature Check:
  2. Use HWMonitor to check your PC’s temperature. Ensure it is within normal range.
  3. Use SpeedFan App:
  4. Download and install the SpeedFan app.
  5. Open SpeedFan to view the running speed of all fans inside your PC.
  6. Control Fan Manually:
  7. Utilize SpeedFan to manually control the fan speed.
  8. Adjust the fan speed settings to an appropriate level.

Note: Ensure your motherboard supports fan control for SpeedFan to be effective.

PC Crashes Before OS Load

If your PC crashes just before loading the operating system, it could be attributed to issues with the RAM or the hard disk. Here’s a step-by-step approach to identify and address the problem:

Troubleshooting Tips:

  1. RAM Troubleshooting:
  2. If you have multiple RAM slots, remove each RAM module one by one and attempt to start the PC after each removal.
  3. Identify the specific RAM module causing the issue by testing each one individually.
  4. Replace the corrupted RAM module to resolve the problem.
  5. Hard Disk Check:
  6. If RAM isn’t the issue, consider problems with the hard disk.
  7. You may use diagnostic tools or check the hard drive’s health using software like CrystalDiskInfo.
  8. If the hard drive is damaged, consider replacing it with a functional one.

PC Isn’t Powering On

If your PC is not powering on at all, follow these steps to identify and potentially resolve the issue:

Troubleshooting Tips:

  1. For Desktop Users:
  2. Check power connections, including the extension cord, power outlet, and other connections.
  3. If the power cable is suspected, swap it with the monitor’s power cable to test. Replace the cable if this resolves the problem.
  4. Ensure all external devices are disconnected during troubleshooting, as a malfunctioning device might be causing the issue.
  5. For Laptop Users:
  6. Remove and reinsert the laptop battery before attempting to start.
  7. If the issue persists, try starting the laptop without the battery, using only the charging cable.
  8. If the laptop powers on without the battery, consider replacing the battery if this solves the problem.

Note: In both cases, eliminating external devices during troubleshooting can help identify any malfunctioning components. If these steps don’t resolve the issue, professional assistance may be needed.

Dealing with a Noisy PC

If your PC is making excessive noise, consider the following steps to address the issue:

Troubleshooting Tips:

  1. Clean Dust Buildup: Excessive noise may be a sign of accumulated dust. Clean the PC using a can of compressed air or a leaf blower to remove dust from components.
  2. Check Overclocking: If you’ve overclocked your PC’s GPU or CPU, they could be generating additional noise. Adjust clock speeds or cooling solutions if necessary.
  3. Inspect DVD ROM: Examine the DVD ROM for any discs that might be causing noise. Ensure the drive is functioning properly.

Noisy Hard Drive

If you hear clicking or grinding sounds from your hard drive, it may indicate an imminent failure. Follow these steps to assess and address the issue:

  1. Use CrystalDiskInfo:
  2. Utilize CrystalDiskInfo, a hard drive monitoring tool, to check the health of your hard drive.
  3. The tool will provide information on the current health status, indicating if it’s “Good,” “Caution,” or “Bad.”
  4. Backup Data Immediately:
  5. If the hard drive shows signs of deterioration, back up all your data immediately.
  6. Consider using an external storage device or cloud services for data backup.
  7. Replace Hard Drive:
  8. Plan to replace the hard drive as soon as possible to prevent data loss.
  9. Acquire a new hard disk and transfer your data to the new drive.

Blue Screen of Death (BSOD)

Encountering the Blue Screen of Death (BSOD) is a significant issue that requires prompt attention. Use the following steps to diagnose and resolve common causes of BSOD:

Troubleshooting Tips:

  1. Use BlueScreenView Utility:
  2. Use Nirsoft’s BlueScreenView utility to gather crucial information about recent BSOD occurrences.
  3. Analyze the details provided by BlueScreenView to identify the specific problem.
  4. Corrupted Drivers:
  5. Open Device Manager by typing `devmgmt.msc` in the Run dialog.
  6. Look for a yellow triangle icon next to any driver in each menu.
  7. Right-click on the driver with issues and select “Update Driver Software” to resolve corrupted driver problems.
  8. Alternatively, use third-party tools like IObit Driver Booster to automatically find and fix driver issues.
  9. RAM Pressure:
  10. Too much pressure on the RAM can cause BSOD. Avoid opening an excessive number of programs that the RAM can’t handle.
  11. Consider upgrading your RAM if frequent BSOD occurrences persist.
  12. Faulty Hard Disk:
  13. A dying hard disk can lead to BSOD. Follow instructions related to hard disk problems to identify and address issues.
  14. Excessive heat in your PC can also cause BSOD. Refer to instructions related to a heating PC to resolve this issue.

Blank Monitor

If your monitor displays nothing, follow these steps to identify and address the issue:

Troubleshooting Tips:

  1. Check Monitor and Graphics Card: Connect the monitor to another PC to determine if the issue lies with the PC or the monitor. If the monitor works with another PC, the problem might be with your graphics card or PC settings.
  2. Monitor Power Issues: If the monitor isn’t powering on, replace the power cable with a working one to test if the issue is related to power. Ensure the monitor is receiving power and turned on.

Monitor Going Black After Few Seconds

If your monitor goes black after a short display duration, consider these steps to troubleshoot and resolve the issue:

Troubleshooting Tips:

  1. Auto-Adjust on Monitor: Press the auto-adjust button on your monitor to see if it corrects the problem. This button helps the monitor automatically adjust settings for optimal display.
  2. Change Display Color Quality: If the issue persists, try changing the display color quality from 32-bit to 16-bit. Adjust color settings through your graphics card settings or display properties.
  3. Connect to Another Monitor: Connect your PC to another monitor to adjust colors from your graphics card settings. While pressing auto-adjust, use the brief display time to make necessary color adjustments.

Keyboard Issues

If your keyboard is making noise and not typing repeated words properly, it might be due to enabled toggle keys and filter keys in Windows settings. Follow these steps to disable them:

Troubleshooting Tips:

  1. Open the Control Panel and click on “Ease of Access.”
  2. Click on the “Change how your keyboard works” button.
  3. Uncheck the checkboxes next to “Toggle keys” and “Filter Keys” to resolve the issue.


Many of the above mentioned hardware issues can be sorted out by adjusting settings or using software. But, for some tricky ones, you might need to head to the computer repair shop. It’s handy to have an idea of what’s up with your PC, so you can tackle things the right way. Share your experiences or questions about PC hardware problems in the comments. If you have any questions or enquiry, feel free to drop a comment below and we’ll give you a prompt response.