motherboard power is perfect,led also glows,
processor fan also runs,but the display shows only a black screen.my mother board model is dg31pr intel.wat is the problem.no burnt parts are visible
Are you using integrated graphics or a discreet video card? First of all make sure everything is connected. Make sure the DVI or VGA cable is plugged in.
If you are using a discreet video card pull out the card and see if you get any video out put. You should automatically get video becuase the BIOS will automatically switch to onboard video. If you get video feed go into the BIOS and enable the PCI-e slot. Turn off the computer and put in the video card and see what happens.
If you are using onboard video then it might be a problem with your CPU.