how to Solving display complaint

Sometimes System will not work suddenly. Frequently This type of problem will rise. So here I mention some tips to solve this problem. Actually there are so many reasons to raise this problem. 

• Make sure the monitor powered on or not. After check the VGA cable. If it is loose contact or not.

•      After that check num lock status of keyboard. If it is on and off. Your system is working normal. If Num lock is not working.  Go to next Point.

• Check SMPS Fan (back side), if it Is not working, replace the SMPS and Start the computer. If it is working fine. Go to next point.

• Open the left side door of the CPU, remove the RAM and clean the Ram and Ram slots, then insert and check for 4 to 5 times. If it is working fine. Close the door and use your system. But if it is not working fine.  Remove the RAM and power on the CPU, Observe any long beeps comes from Mother Board. Replace the RAM and check. But long beeps are not come from Mother Board. Go to next Point.

• Remove the CMOS Battery, and remove power cable from SMPS for 2mins. After Plug the Power cable. Start the system. Then observe long beeps come from Mother Board (when Ran is not present) or not. If not, insert the CMOS battery in reverse. Then start the system. If not. Go to next point

• After the above 5 points, check your Processor and Mother board. If Processor is working. Problem with your mother board.