There is no picture on monitor

Description of the problem
Defendant problem is the computer is powered but not transmitting to the monitor image. The monitor remains black and displays NO SIGNAL.

Features PC
Motherboard: Foxconn A6GMV
Processor: AMD
Video card: MSI VR5550-MD1G
Memory: Kingston 2x2GB DDR3 1333
Hard Disk:
Power supply: 420 W 9.25 LPJ


Operating System
Windows XP


Possible Defects
1.Memorie moved into the slot (appears frequently in cold months, when there are differences in room temperature)
2.Memorie burned
3.Placa base damage
Video 4.Placa damage (because no video card attached to the PCI-E)
5.Procesor burned
6.Sursa damage

Identifying the problem
Motherboards typically incorporate a warning if it detects a fault
1.Ne atsat ensure that there is a speaker on the base or connector plca Speaker
2.Scoatem memories of slots and video card
3.Pornim computer and want to see if the motherboard emits signals that talking (you have to hear the speaker more beeps if the motherboard, processor and power are okay)
Verdict in this case: NO
4.Resetam BIOS on the motherboard (remove the battery and jumper pins are a CLRCMOS) and retry step 3.
Verdict in this case: NO
5.Inlocuim source and repeat step 3
Verdict in this case: NO
They remained two possible faults: the motherboard and processor
In 90% of the motherboard is defective. If we can, sample processor on another motherboard.

Defect
In this case the problem occurred because of faulty motherboard.

Fix
Remedy was replacing the motherboard.