Solve : nothing shows up on the screen?

1.	Solve : nothing shows up on the screen?
Answer» this computer wouldnot TURN on so i put a NEW power supply in that did not fix it then i put a new mother in. then it came on but nothing came on the monitor. so we put a video card in it same thing nothing on the screen all wires RAM cd-rom floppy all new wires. please helpHave you tried ANOTHER monitor or tested the monitor on another computer? What type of machine is this ? What flavor of Windows ? Are you saying you REPLACED the MBoard ? The more details you provide the quicker a solution can be worked out...

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