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#Sonic r pc no input how to

If they are not spinning at all when the computer is turned on, the fans need to be replaced. Check the fans to see if they are spinning. If the computer is overheating, the fans that keep the processor, video card, or power supply cool may have failed. For that reason, we recommend replacing an overheating monitor. The cost to fix it is likely more than the cost of buying a new monitor. If the computer overheats, the computer may stop sending a signal to the monitor, and may also shut down to prevent further damage to the computer hardware.įixing a monitor that is overheating is generally not worthwhile. In the event of the monitor overheats, it stops working to prevent further damage. If the monitor works for a while, then stops working and displays the "No input signal" message, the monitor or computer may be overheating. Monitor works for a while, then loses signal A short in the motherboard or a bad capacitor are common causes for a computer motherboard to not pass the POST process. If the POST process is failing and the computer is not starting up, the motherboard could be at fault.

The "No input signal" message can sometimes appear if the POST process is failing, and the computer cannot boot properly. Verify your computer is getting past the POST process and that it is starting up.

#Sonic r pc no input how to

See: How to install a computer video card. You could also install a new video card instead of replacing the motherboard. If you believe your video card is bad and your computer has an onboard video, the motherboard needs to be replaced.

If your monitor works on another computer, your video card may be having issues.

If another monitor works on your computer, the monitor is bad.

See: How to test a computer motherboard and CPU for failures. We recommend testing the motherboard for any issues, as well. To test what component is bad, either connect a different monitor to your computer or connect your monitor to a different computer. It's also possible that the motherboard in the computer is defective, preventing a signal from getting to the video card and monitor. If the connections appear to be correct, either the monitor or the video card is likely bad. Look for options to select the type of connector (e.g., VGA, DVI, HDMI, or DisplayPort), and select the cable your monitor uses. Access the settings on the monitor using the buttons on the front or bottom edge of the monitor.

For these types of monitors, the correct input selection needs to be used. Newer monitors are capable of connecting to a computer using a VGA, DVI, HDMI, or DisplayPort connector. If you see more than one VGA, DVI, HDMI, or DisplayPort connector and the monitor is not working, try the other connector. When working with this type of computer, you'll have two different connections for your monitor on the back of your computer. Some computers may have an onboard video and a video card.