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If your computer turns on without issue, but your computer screen is showing a No Signal message, it could be due to problems in the CMOS, RAM, VGA card, or the cable that connects your CPU to your monitor.This article will explain how to go about re-establishing a connection between your CPU and your accompanying monitor.CPU Starts but Monitor Displays No SignalAll components inside the computer casing are prone to dust particles, which may deposit on the hardware components and prevent them from working properly. Before beginning, perform an initial check of your computer's main components for excessive dust build-up.Once you've done an initial check of your computer, try cleaning your CMOS battery.
The battery can be found attached to your motherboard, and can be cleaned by lightly rubbing the component. Next, take out your RAM and do a similar cleaning.If you are still experiencing problems with your monitor's connection, check out your monitor cable and VGA. Clean both components individually.Once done, reassemble your CPU. Your PC and monitor connection should be re-established.Image: © Pankaj Patel - Unsplash.com.
Oct 31, 2015 Sound & Audio. Monitor Speakers not working when connected via HDMI to laptop. Hi, I've recently purchased a Samsung T23A750 monitor and to my disappointment when I try to watch a movie the built in speakers are not functioning. I have a Sony Vaio Z216GX connected via HDMI to the monitor (HDMI-DVI) port. It means that the monitor is working but does not see the computer is turned on. The message means your monitor is working okay but is not getting a signal from your computer. The best thing to do is make sure your computer is powering on.