8 Fixes for GPU Not Powering On or Fan Not Spinning

Step 1: Verify Power Connections

Begin by ensuring that all power connections are securely plugged in. Follow these steps:

1. Turn off your computer and unplug it from the power source to avoid any electrical hazards.
2. Open your computer case by unscrewing or sliding off the side panel, following any case-specific instructions.
3. Locate the GPU in the PCIe slot on the motherboard.
4. Check that the 6-pin or 8-pin power connectors are firmly secured into the GPU. If multiple connectors are required, ensure all are connected.
5. Inspect the PCIe slot on the motherboard to confirm the GPU is seated correctly, looking for the retention clip’s lock.
6. Power on your computer and verify that the GPU fans start spinning, indicating power has been restored.

Pro Tip: If your GPU powers on but isn’t recognized by the system, you might need to troubleshoot further.

Step 2: Reset BIOS/UEFI Settings

Resetting BIOS/UEFI settings can resolve conflicts that prevent GPU detection:

1. Power off the computer and unplug it from the power source.
2. Access the motherboard by opening the computer case.
3. Locate the CMOS battery on the motherboard and carefully remove it.
4. Wait for 5 to 10 minutes before reinserting the battery to ensure a reset.
5. Close the case, plug in the computer, and power it back on.

Pro Tip: Ensure to note any BIOS settings you may need to configure after the reset.

Step 3: Swap with Another GPU or Slot

Testing another GPU or PCIe slot can help isolate the issue:

1. Power off the computer and unplug it from the power source.
2. Open the case and carefully remove the current GPU from the PCIe slot.
3. Insert a different working GPU into the same PCIe slot and power on the computer to check its performance.
4. If the replacement GPU functions, try placing the original GPU in a different PCIe slot.
5. Power on the system again to see if the original GPU is now detected.

Pro Tip: Try to remember the original slot used as it may affect results.

Step 4: Inspect and Clean the GPU

Cleaning your GPU can solve connectivity problems caused by dust:

1. Turn off your computer and disconnect it from power.
2. Remove the GPU and check for any visible damage.
3. Use compressed air to clean both the GPU and the PCIe slot meticulously.
4. Reinsert the GPU securely and power on the computer.

Pro Tip: Look for burnt areas or discoloration that might indicate serious hardware issues.

Step 5: Update or Reinstall Drivers

Outdated or corrupt drivers could prevent your GPU from functioning correctly:

1. Boot your computer using integrated graphics if necessary.
2. Visit the GPU manufacturer’s website to download the latest drivers.
3. Uninstall the current drivers:
   1. Press Win + X and select Device Manager.
   2. Right-click on your GPU under Display Adapters and select Uninstall device.
4. Install the new drivers you downloaded and restart your computer.

Pro Tip: Backup your previous drivers in case you need to revert.

Step 6: Assess for Overheating

Overheating can cause hardware malfunctions:

1. Examine the GPU for signs of overheating damage.
2. Ensure proper airflow and that all fans are operational.
3. Consider reapplying thermal paste:
   1. Remove the GPU cooler and clean the old thermal paste.
   2. Apply new thermal paste and reattach the cooler securely.

Pro Tip: Regularly monitor GPU temperatures in your system to prevent future overheating.

Step 7: Use a Different Power Supply

A failing power supply can prevent the GPU from operating:

1. Turn off your system and unplug from the power outlet.
2. Carefully switch out the existing power supply for a known working one.
3. Connect all required power cables to the GPU and motherboard.
4. Power on the computer and check for GPU functionality.

Pro Tip: Ensure the replacement power supply has adequate wattage for your setup.

Step 8: RMA the GPU

If all else fails, contact the manufacturer for support:

1. Reach out to the manufacturer or the retailer for a warranty assessment.
2. Explain the issue and request an RMA (Return Merchandise Authorization).
3. Follow their guidelines for returning the GPU for replacement or repair.

Pro Tip: Keep your original packaging until the warranty period is over.

What causes a GPU to not turn on?

How can I tell if my GPU is dead?