When my computer says check signal cable what does it mean?
Your monitor is telling you that it thinks it is not receiving a video signal from the computer. You need to verify which of three components is not working, the computer, the cable, or the monitor.
The first thing to do, obviously, is to check that the cable connecting the computer to monitor is good. You will need some extra components to do the checking. I'm going to assume that the cable is detachable at both ends.
First you can try replacing the cable with different one. If the replacement cable works, then it's the cable.
Secondly, you can try different monitor. If you connect this in place of the first monitor, and it works, it's a faulty monitor (needs repairing or replacing).
Third try a different computer with the original cable and monitor, if it all works it looks like the video on your PC has malfunctioned. (This might also be your conclusion if a system comprising a different cable and monitor fails to work with the original PC)
You might just be able to verify the cable by testing the connectivity of all the wires in the cable with a meter, if you knew the pin out of the cable at both ends.
If you find out the computer is getting a signal out, there could be many causes for that, each having its own solution (or not as the case may be)
12.April.2014
You asked for more details-this is all I can tell you
After my grandaughters computer DIED,my daughter turned hers on later on the same message came up.They took them to a computer repair shop and was told that lightening had hit them,so they are not repairable.Thanks for your help
Thank you maam or sir ( sorry I don't recognize your name so I can't recognize gender ) for letting us know. Do you mind me asking where you are from? Just wanting to know how to pronounce your name and have an idea of where you are from. No need to answer if you don't want to.
Is the computer itself turned on? Are there power indications on the desktop, i.e. power indicators usually a green light or hard drive indicators ( usually a flashing red light as the computer boots up ). So far the only thing that seems to be turned on is the Monitor which is displaying the No-signal display. No-signal indicates the computer is not turned on or is defective or the cable between the computer and monitor is not fully connected.
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