Computer stopped displaying anything after blue screen

After updating iTunes, I was surfing youtube. All of a sudden blue screen. When I restart, I get nothing, no bios, no splash screen. My monitors don't display no signal as when I disconnect the cable but their buttons do flash as if there was no signal. All I got is a black screen and no beeps.

What gives?
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  1. UPDATE: Switched out video cards and I get the same result.
  2. Try resetting the CMOS. We also need your complete system specs in order to offer much help. Here's a checklist to give you an organized way to troubleshoot the problem:
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