Welcome Newcomer! Generally, it is easier to help with all of the system specs, but follow the link in my signature to jump to the troubleshooting guide. This guide was designed to address the most common problems related to "no boot" or "no display" concerns. Note that toward the bottom of the t/s guide, there is a link to jsc's breadboarding guide. If nothing in the t/s guide helps, proceed to the breadboarding guide to rule out case shorts.