How to Resolve Computer CPU On but does not appear on the monitor

How to Resolve Computer CPU On but does not appear on the monitor! 

This problem is common on computers, can be caused by an unstable power flow and the way a computer switch off less true. I also often experience this, now to fix a computer there are some things we need to provide, namely:

Tools needed:
1. Brush, for dusting computer.
2. Obenk, to unlock the bolt

Steps to Overcome Life CPU computer but does not appear on the monitor
1. Make sure the computer is not connected to the electricity so as not to shock.
2. Open the CPU Casing

 

3. Clean the CPU from dirt and dust attached

 

4. Clean the VGA slot with a brush

 

5. Open the computer memory of the slot, and clean it with a brush

 

6. Replace the memory into the slot
7. Attach Cables and wires are removed flows from the CPU port earlier.
8. Turn On the CPU and monitor.