The computer shows the fans functioning but no data is sent to the monitors. i have tried with different monitors but it still sends no signal of data. i have a feeling it may be a problem with the mother board.
The first thing to do is to pay attention for "beep" when your press the power button (or the reset button) to turn the computer on or reboot it. The beeps that a PC makes tells you a lot about the state of your computer. I couldn't quote for you the exact beeps to listen for, but your manual for your motherboard may tell you. Different beep pattersn tell you what is wrong with a computer.
I think for many common motherboards it is something like 4 beeps to tell you the graphics card has failed. Don't quote me, but that is at least along the lines of how it works if not the exact number.
If you're getting no display after starting your computer make sure you hear one beep. Then, listen for other activity. If you're computer has a floppy drive, listen for the 'floppy seek'. Otherwise, listen for hard drive activity. If it sounds as though there's activity along those lines but still no signal/display on the monitor perhaps check the cable between your PC and the monitor. Never hurts to just make sure the monitor is turned on of course.
If your monitor is on, and the cables are connected securely I wold restart the computer again and check for the beeps. I would be certain to count them and check the manual. Your graphics card may have failed if you hear abnormal beeps (more than one as one is usually the healthy indicator). If you hear no beeps then the PC is not even getting in as far as testing it's devices and could quite possibly be a motherboard failure.
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try monitor on a different working desktop to see if it works, both on the external and internal video card ports. If screen menu buttons fails to respond, fault is either on menu buttons or you may have a burned out lcd screen, try a different monitor on your desktop pc to check its functionality. Monitor probably needs replacement.( It might not be burned out for you mentioned "no signal" error message appeared on screen, have the screen menu buttons checked)
Either your monitor or video card is going bad. Try a different monitor to isolate the problem. If you attach a different monitor and it does the same thing, then your video card is going bad. if you attach a different monitor and it does not have the problem, then your monitor is going bad.
If you mean a constant beeping, open the case and see if the CPU fan is running, check also that the heatsink is firmly attached to the board, this noise usually points to a n overheating CPU, if you get no activity on screen,it is because there is no signal being sent to the monitor. Do not operate the computer until you have checked the fan is working, you need to establish if there is power getting to the fan by testing with a multimeter on the motherboard cpu fan pins. If you are getting power, replace the fan, worthwhile removing and regreasing the CPU and making sure it is firmly in place.
If there still is no signal, replace CPU, but also try a different graphics card (faulty video will give 9 beeps).
Connect the monitor to a different computer, to see if the monitor works at all.
Connect a different monitor to your computer, to see if your computer really is "sending" a video-signal through the "data" cable. If not, then either the data-cable or the video-card inside the computer is faulty.
Most likely the display is defect, you can try to change the settings in your computer and put the display in 1024x768 and 60Hz but I think it will not solve your porblem. You have to send it for a repair or buy a new one.
Try connecting the monitor to a different computer, e.g., a laptop.
The power-cord to the monitor seems to be OK.
Check the "data" cable between the monitor and the computer -- try a different cable.
With the monitor turned on, restart your computer, and watch the monitor. The computer should show some start-up messages (white text over black background), followed by the Windows "splash" screen. If it does, the monitor is working correctly.