HELP ASAP! Monitor no signal [Closed]

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Registration date
Sunday March 13, 2016
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Last seen
March 13, 2016
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Guys I am having a problem similar to this! Last night I tried hooking my tv up to my computer to use as a second monitor I googled how to do it, Google told me to turn off the computer connect the hdmi cord and turn the computer back on so I did. But when I turned computer back on it said no signal on both my monitor and tv so I turned the computer off again and unplugged the hdmi cable from the computer to return to only using my monitor (which worked fine before I tried hooking tv up) but I just keep getting "no signal" on the monitor.
Everything I have tried
- unplugged power cord from computer and held power button for 1 minute then plugged power cord back in
- took out, ram, video card, and cmos cleaned all and still nothing.
- disconnected hard drive and disk drive
Everything listed above is what I was told to do on other sites, but nothing has worked.
Can you guys help me out? Thank you for your time.