acer veriton x4240g powers on, but no power to Monitor, keyboard or Mouse, Is motherboard Issue?

Options
Faf6432
Faf6432 Member Posts: 2 New User

i have acer veriton x4240g pc when i power on cpu got power but my keyboard,mouse and monitor does not have power but cpu fan is running. I cleaned ram and cmos battery but problem not solved, it is motherboard fault ??

Answers

  • Puraw
    Puraw ACE, Member Posts: 17,881 Trailblazer

    Hi Faf6432,

    If your Acer Veriton X4240G powers on and the CPU fan spins, but your keyboard, mouse, and monitor stay off, it sounds like the system isn't completing POST (Power-On Self-Test). That can happen if the motherboard isn’t sending power to USB ports or video output.

    Try this first:

    1. Unplug everything and hold the power button for 30 seconds (with no power cable connected).
    2. Clear the CMOS by using the jumper method or removing the coin-cell battery for a few minutes, then reinstall it.
    3. Boot with just one RAM stick, no drives connected, and no PCIe cards—just the bare minimum.

    Also check:

    • If there are beep sounds or diagnostic LEDs, they can give clues.
    • Make sure both the 24-pin power and CPU power cables are seated properly.

    If still no power to USB or monitor, the issue may be with the motherboard’s power regulation circuits or chipsets. Let us know what you see after trying the steps above—we’ll help guide you from there.

  • Faf6432
    Faf6432 Member Posts: 2 New User

    All method i tried but issue not solved 😭😭😭 it is probably motherboard issue

  • Larryodie
    Larryodie Member Posts: 1,977 Community Aficionado WiFi Icon

    Before you give up

    Remove the battery, unplug AC.

    Let sit overnight to reset, , reinstall battery & AC. Hopefully It'll reset.

  • Axxo
    Axxo Member, Ally Posts: 2,121

    If the Acer Veriton X4240G powers on, but the monitor, keyboard, and mouse don't receive power, it suggests the system is not completing the Power-On Self-Test (POST). This could be due to a lack of power delivery to USB ports or video output, or a failure in the motherboard's power regulation circuits.
    Here's a breakdown of potential causes and troubleshooting steps:

    1. Check Connections and Power Supply:
    Power Supply:
    Ensure the power supply switch is on and the power cord is securely connected to both the computer and the power outlet.
    Monitor Power:
    Verify the monitor is powered on and connected to the correct input source (e.g., HDMI, DisplayPort), says EaseUS.
    Peripheral Connections:
    Make sure the keyboard and mouse are properly connected to the computer, preferably directly to the motherboard ports rather than through a USB hub.
    Cable Integrity:
    Check the cables for any signs of damage or loose connections. Replace any damaged cables
    2. Reseat Components:
    RAM:
    Reseat the RAM modules by carefully removing them from their slots and reinserting them firmly.
    GPU:
    If the system has a dedicated graphics card, try removing it and connecting the monitor to the integrated graphics (if available). Then, reseat the GPU.

    3. CMOS Battery and BIOS Reset:
    CMOS Battery:
    Locate the CMOS battery on the motherboard and remove it for a few minutes to reset the BIOS settings. Reinstall the battery and try booting the system, recommends the Acer Community.
    CMOS Jumper:
    Some motherboards have a CMOS clear jumper. Refer to the motherboard manual for instructions on how to use it to clear the CMOS.
    4. Minimal Boot:
    Disconnect Peripherals:
    Disconnect all unnecessary peripherals (printers, external hard drives, etc.).
    Bare Minimum:
    Boot the system with only the essential components: CPU, one RAM stick, and the monitor connected to the integrated graphics (if available).

    5. Diagnostic Clues:
    Beep Codes:
    Listen for any beep codes during startup. If you hear beeps, refer to the motherboard manual for their meaning. No beep codes can indicate a more serious issue, according to the Acer Community.
    Diagnostic LEDs:
    Some motherboards have diagnostic LEDs that can provide clues about the POST process.
    6. Further Troubleshooting:
    Motherboard Power:
    If the issue persists, it could be a problem with the motherboard's power regulation circuits or chipsets.
    Power Supply Unit (PSU):
    A faulty PSU can also cause this problem. Consider testing the PSU or replacing it with a known working unit.
    7. Seek Professional Help:
    If the troubleshooting steps above do not resolve the issue, it's recommended to seek professional help from a qualified technician or contact Acer support.
    -----------------------------------------
    If this answers your question and solved your query please "Click on Yes" or "Click on Like" if you find my answer useful.