We are going to need your entire configuration (model#s, etc.).
Your best chance at solving quickly is this (expert troubleshooting) checklist.
"System won't boot" and "no video output" checklist
This checklist is a compilation of troubleshooting ideas from many forum members. It's very important to actually perform every step in the checklist if you want to effectively troubleshoot your problem.http://www.tomshardware.com/forum/261145-31-perform-steps-posting-boot-video-problems#t1895014
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