Computer has no display.

I havn't touched my desktop in a couple monther, and when i went to turn it on today it beeped irregulary and has no display. The monitor works, i checked it with another pc. I think it might be the graphics card because it was acting funny before, it would make certain programs colors completely red.

 

Can you please elaborate on your problem and I may be able to help you.

 

Well, make sure your drivers are up to date, you really were incredibly broad with the post so thats the best I can do for now. Also, make sure the GPU isn't simply overheating, you said it was acting up before, high-powered gaming pc?