A:AnswerYou could connect it to an older monitor with perhaps a DVI, even VGA port. You would not be able to use some of the newest advances in GPU technology but you would get video at the frames and resolution your monitor supports.
A:AnswerThank you for reaching out. You could connect this computer to most any monitor. At the most all you would need is an adapter but I do not think one is needed depending on which connection you already use.
A:AnswerNot at all, the system is designed with all of the parts in mind. You can add a 800w PSU but the computer would never go close to those numbers. The PSU included with this computer is efficient and will run it at the configuration listed easily. The new Intel processors are extremely efficient.
A:AnswerI cannot be sure on the need to upgrade the PSU, I would reach out to the GPU manufacturer to inquire about that. We do not test the chassis for fit on all GPUs but typically a reference size GPU will fit without issue.