Was using my computer. Suddenly the monitor says I need to check the signal cable.
I make sure it's fastened.
Still no image.
Looks like the CD/DVD ROM have no power (or at least aren't responding). On boot up no Windows music and other start up sounds come over the speaker. On our network connection the computer is listed as unavailable.
Sounds like your motherboard died. All the syndromes listed are related to tasks preformed by the motherboard. Unfortunately you can't fix a dead motherboard. You can buy a new one fairly cheap, either the exact same motherboard, or one that has all the exact same features. look at newegg.com or tigerdirect.com they always have good deals
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The monitor shows no signal probably it didnt detect the tower Ill be advising you to remoev the cable that conencts the cable used a clean cot or rug clean both ends of the cable , clean also the area whre you plug in the cable , the ports on the monitor and on the CPU make sure its clean . Then plugged it in , in case nothing happens try to used another cable that conenct from the monitor to the CPU you may aslo try to used other CPU to checked if monitor is working fine or try other monitor to checked if the port on the your CPU is working fine
Check all conections between the tower and the screen, make sure all are secure, if no joy, unplug the tower and remove the side panel to see if the graphics card is in securely, maybe take the graphics card out and put it back in again to be sure. If you have another monitor or monitor cable try replacing to see if the situation improves.
This is an indication that the monitor is not receiving a video signal from the computer. Check both ends of the video cable - both the connection to the monitor as well as the connection to your computer's video card, and make sure that both are secure. If the connections are secure and the problem persists, buy a replacement video cable. If that fails to fix the issue, try swapping out a different video card.
do you mean the processor fan that is located near on the left top corner on the motherboard? if that stopped working then turn of your pc immediately. probably the cpu overheated. if that fan does not work replace it immediately as it will burn the cpu.
Sounds like either the power supply unit's fan isnt functioning and the the uniy over heats and the computer then wouldnt boot up (to protect itself) or the processor is overheating. But rather seems like a power supply problem
If screen says "Signal cable not connected " all the time till power led switches to Amber chances are monitor is ok and problem is with graphic card or cpu.Connect to Known working CPU and confirm that monitor is the problem.
If same problem persists on another working cpu after changing signal cable,the interface board in the monitor could be defective.
1.there might be a problem with your signal cable. if one of the pin in the signal cable is open. it might also happens 2.adjust signal cable. 3.Check VGA video card is working properly. unplug the VGA card and Re-plug to its slot. if your mother borad has inbuilt video card. this process cannot be performed 4.Even problem with operating system might also happen.. problem with Video Ram memory 5.if you want to check whether your monitor is ok. just get Cpu Box alone frm friends for a while for a testing. 6. if your monitor have problem then contact service centre.