Expert Tips for When Your PC Upgrade Doesn’t Go as Planned: Shutdown and HDMI Woes


“I’ve recently upgraded my PC with a new motherboard, RAM, and CPU, and previously installed a new GPU four months ago. Since the upgrade, my PC powers on but fails to shut down. Additionally, the HDMI output is non-functional, and my mouse doesn’t respond when connected to USB ports that were operational with my keyboard. Despite testing three different HDMI cables, which work fine with my Xbox, my monitor continues to display ‘no signal.’ My PC’s specifications include an AMD Ryzen 5500 CPU, B550 Gaming V2 motherboard, OLOY RAM with two 8GB sticks totaling 16GB, an RX 580 GPU, Vasgen Plus case, and a 550W power supply. I’m at a loss as to why my PC isn’t functioning properly. Could you provide some expert guidance on troubleshooting this issue?”


Upgrading your PC can be an exciting venture, but it can also lead to unexpected issues. If you’ve recently upgraded your PC and are facing problems such as the inability to shut down, non-functional HDMI output, and unresponsive USB ports, here’s a step-by-step guide to help you troubleshoot the issues.

  • Power Cycle

    : Start by completely turning off your PC and unplugging it. Wait for a few minutes before plugging it back in and turning it on.

  • Internal Connections

    : Open your PC case and ensure all cables and components are securely connected. Pay special attention to the motherboard power connectors, as well as the seating of the RAM and GPU.

  • Step 2: HDMI and Display Issues

  • Monitor Input

    : Double-check that your monitor is set to the correct input source.

  • GPU Seating

    : Remove and re-seat your GPU to ensure it’s properly connected to the motherboard.

  • Integrated Graphics

    : If your CPU has integrated graphics, try connecting your monitor to the motherboard’s display output to rule out GPU issues.

  • Step 3: USB Port Troubles

  • BIOS Settings

    : Enter the BIOS setup and check if all USB ports are enabled.

  • Driver Updates

    : Make sure you have the latest drivers installed for your motherboard, especially after a hardware upgrade.

  • Step 4: Power and Shutdown

  • BIOS Update

    : An outdated BIOS can cause compatibility issues with new hardware. Check the manufacturer’s website for an updated BIOS version.

  • Power Supply

    : Verify that your 550W power supply is sufficient for your new components, particularly the CPU and GPU.

  • Step 5: Hardware Diagnostics

  • RAM Testing

    : Use tools like MemTest86 to test your RAM for errors.

  • CPU and GPU Stress Test

    : Run stress tests to check the stability of your CPU and GPU.

  • Step 6: Systematic Component Testing

  • Minimal Boot

    : Try booting with the bare minimum hardware connected. Start with just the CPU, one stick of RAM, and the onboard graphics (if available).

  • Swap Components

    : If possible, swap out components with known good ones to isolate the faulty part.

  • Conclusion

    If after following these steps your PC still exhibits the same issues, it may be time to consult with a professional technician. Sometimes, incompatibilities between new and old components can lead to complex problems that require expert analysis and hands-on testing.

    Remember, patience is key when troubleshooting PC issues. Methodically work through each potential problem area, and you’ll likely find the solution. Good luck!

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