This is the first time I build a computer. I went out and bought all the stuff (Athlon 900, Shuttle AK12, ect.) put it all together and don’t get anything, no post or video. After testing everything and determining the motherboard is the perpetrator, I go out and get a new one. After installing it the same thing. A little dishearted I go out and get the board replaced but with a new model, AK14. I put everything together but in a new case. It works fine. The only common denomonator seems to be the case. All the proper precautions were considered when installing everything. Is this a possibility?