If your display suddenly goes black while playing games or running intensive applications, but your PC fans and lights stay on, your graphics card or display driver has likely crashed. Follow this guide to troubleshoot and resolve the issue.
1. Reset Overclock and Undervolt Settings
Unstable GPU clock speeds or insufficient voltage can cause sudden display cutoffs under heavy loads.
- Open your tuning utility (e.g., MSI Afterburner or AMD Software: Adrenalin Edition).
- Reset core clock, memory clock, voltage, and power limits to their default factory settings.
- Turn off any automatic tuning utilities, reboot your PC, and test the system.
2. Clean Reinstall Graphics Drivers
Corrupted or unstable display drivers prevent Windows from properly communicating with your graphics card.
- Press
Win + R, type devmgmt.msc, and press Enter to open Device Manager.
- Expand Display adapters, right-click your graphics card, and select Uninstall device.
- Check the option to attempt driver removal and click Uninstall.
- Download and install the latest official driver manually from your GPU manufacturer (NVIDIA, AMD, or Intel).
3. Check GPU Temperatures
Thermal throttling or excessive heat can trigger display crashes to protect the hardware.
- Open Task Manager (
Win + R, type taskmgr), go to the Performance tab, and select your GPU to monitor its temperature (or use a tool like HWiNFO).
- Typical gaming temperatures usually fall between 65°C and 85°C (149°F–185°F), though acceptable limits vary by model.
- If overheating: Clean dust from the fans and heatsink, check that GPU fans spin under load (some cards use zero-RPM mode at idle), and ensure your PC case has proper airflow.
4. Inspect Power Supply and Connections
Insufficient power delivery under heavy load can cause the GPU to shut off its video output.
- Check Wattage: Ensure your Power Supply Unit (PSU) meets the total system power recommendations specified by your GPU manufacturer.
- Check Cables: Shut down and unplug your PC. Verify that all PCIe power cables (including 12V-2x6 or 12VHPWR connectors) are securely latched with no sharp bends or physical damage.
- Safety Warning: Never open or disassemble a PSU. Internal components retain hazardous electrical charges even when unplugged.
5. Test the GPU on Another Computer
If the issue persists, test whether the graphics card itself is failing.
- Install the GPU into another compatible PC equipped with a suitable PSU and PCIe slot to see if the black screen reoccurs.
- You can also run stress tests like 3DMark or AIDA64 Extreme to check stability under load (avoid doing this if the card is already overheating or severely unstable).
- If the card fails in a second system, contact the manufacturer or vendor regarding warranty coverage or hardware repair.
