![]() ![]() If you’re using an interchangeable graphics card, make sure the graphics card is firmly inserted in its slot. Never remove the cover of a PC while the device is powered on.If your PC video card or graphics card is set to a display resolution higher than the native display resolution of the monitor, the monitor may show a “no input signal” message. ![]() Some PCs may have cooling fans that spin and thus make noise when the PC is not booted up yet.If you’re not sure, and you have a Windows PC, you can try booting up in safe mode, which uses a much lower display resolution. Consult your monitor specs to find out its maximum and native resolution. If your PC video card or graphics card is set to a display resolution higher than the native display resolution of the monitor, the monitor may show a “no input signal” message. Some external display monitors will show no image and an error message if the monitor display resolutions are out of sync with the input signal. ![]() Check all display and device cable connections, inspect for visible damage, and if necessary, replace any damaged cables with a compatible video cable. If you’re using a cable to connect to your monitor, you might be getting a no input signal message on the display due to a faulty or damaged video or HDMI cable. ![]() Make sure you disconnect all cables and confirm that the device is powered off before removing an internal graphics card.Always use care when handling a damaged or frayed power cord. ![]()
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