Re-seat the graphics processing unit (GPU), and RAM modules: Some monitors will be able to send a display to another device, but that same port will not be able to receive a display from the computer.įor any following steps, please make sure that the computer is off and unplugged. The exact layout of your PC may be different, but generally you will want to plug in the monitor cable to the graphics ports that are below the green, pink and blue audio ports.Ĭonfirm that the monitor cable is plugged into the monitor output port, not the input port if any. The onboard ports on the motherboard (top left silver bracket) will only work with a CPU with integrated graphics chip. Check that the input source on your monitor is set to the same connection as the cable you’re using (HDMI, DVI-D, or Displayport) using the correct button on the monitor.Ĭonfirm the display cable is plugged into the DVI-D, HDMI or Displayport ports on the horizontal graphics card and not the vertical HDMI port. Most monitors have a button that lets you choose between the different monitor inputs. If it’s powered on, there should be a light on or near the power button and you should get an error message such as “No Signal”. Make sure the monitor is plugged in and powered on.
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