display not on

[shumon123]

hlw...my desktop is always running good but suddenly from today its power on but monitor can not display. i change ram slot and ram also.and disconnect all power like power supply, hard disk connector,and reset bios also..but my monitor cant display..what to do to fix the issue

 

[Phillip Corcoran]

You first need to establish whether or not it's the monitor that has packed up, so try it on another PC. Or try a different monitor on your PC.

It's absolutely essential you try one of the above first. It may save you hours of unnecessary troubleshooting.
If you don't see the message "No Signal" or "No Input" on your monitor, it's very probably faulty.