Solve : trouble shooting?

1.	Solve : trouble shooting?
Answer» hi friends please help me RIGHT now my pc i was replace it video card and memory after all my pc deosnot open or run enymore. help me pls.have you done this before? maybe this are stupid question but for further help, did you connect the monitor cable to the back of the graphic card?about CHANGING the memory, do you HEAR any POST beep?an error? anything?Remove everything you put in and does your computer boot up? If it does then add each piece of new hardware one at a time. Each time you add something boot your computer up. It's a TEDIOUS task but it will answer the question of which piece is causing the problem.

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