Solved Monitor turns off sometimes but my custom-built PC stays on

June 18, 2015 at 09:44:01
Specs: Windows 7 64, AMD FX-6300/HyperX 8gb 1300
Hello, I have been having a lot of problems recently with my computer. After having it built 6 months ago in December, my pc is now deciding to act up. What happens is after a while, my screen will go black and come to a blue screen that happens everytime I normally turn off the computer which says "HDMI 2 Not Found" or something along the lines of the connection to the monitor being lost. However, sometimes the computer will go into a hard reboot for no reason. I tried everything I possibly could, I scanned for viruses, I replaced my monitor cables, I even replaced my gpu. I am stuck and dont know what to do

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#1
June 18, 2015 at 10:29:46
✔ Best Answer
A bit of magic poached from a website:

"It seems that an "HDMI Reset" was required. Seems that sometimes the HDMI signals get mixed up between the computer and the monitor. To do this reset, you need to shutdown the computer and the monitor. You also need to remove the power cable from both devices. You also need to unplug the HDMI cable from both devices. Then wait 30 seconds or so. Plug everything back in and restart the computer."

I would add to the above, as part of the "waiting 30 seconds", with the power removed, hold the Power Off/On button down about 15 seconds to discharge the motherboard components. A long shot but at odd times this sort of trickery has helped - at least its easy to try.

If not give us the error message as exactly as possible.

Always pop back and let us know the outcome - thanks

message edited by Derek


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#2
June 18, 2015 at 10:38:23
Ill try that thank you


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#3
June 18, 2015 at 10:49:43
Ok I did it seems to be working for now. However if I did not address this clearly my computer sometimes goes into a hard reboot and says Windows did not shut down correctly and gives me the option to go into safe mode

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Related Solutions

#4
June 18, 2015 at 11:18:53
This sounds rather similar to my computer's problem.

First, Derek, it sounds like the "error message" is just
the monitor saying that it isn't getting a signal.

Just a couple of days after I first applied power to the computer
I assembled five years ago, I found that sometimes no signal was
reaching the monitor just after turning it on. That problem has
persisted over the years. Also, when I completely shut off power
to the motherboard, then applied it again, the two lights on the
motherboard would flash, obviously indicating some kind of
serious problem, and the computer would not start. This problem
went away, but maybe only because I hardly ever completely shut
off power to the motherboard.

I don't know whether the two problems are separate, or one and
the same. I don't know whether the problem is in the motherboard
or the power supply. Both problems seem to appear when the
computer is cool, and go away when it warms up.

The lack of signal occurred with both HDMI and VGA cables. I've
been using HDMI and only tested the VGA briefly to confirm that it
didn't fix the problem. Recently I attached a DVI cable for the first
time, and for a few days I thought the problem was gone. But then
it happened again.

When I first turn the computer on, the signal may or may not reach
the monitor. Usually it does, but just a few seconds later, still near
the beginning of the POST, it often goes out. During POST there is
a video reset, and very often the video comes back on a that point.
Sometimes it goes out again. Sometimes it comes on and goes
out numerous times during the first two or three minutes after turning
the computer on. Eventually it always comes on and stays on. But
sometimes I have to give it a little kick by pressing Ctrl-Alt-Del, which
does a video reset in Windows. In the past the problem has occurred
after waking the computer from sleep, but I haven't seen that recently.

I am going to replace the power supply and see if that fixes it. I have
a new one and just need to install it.

-- Jeff, in Minneapolis

message edited by Jeff Root


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#5
June 18, 2015 at 11:23:03
Maybe the restart symptom is something quite different. See this - the first part will give us an error message on restart that could tell us something:
http://www.computerhope.com/issues/...

Either of thes should give temperature readings:
http://www.cpuid.com/softwares/hwmo...

http://www.hwinfo.com/

See how you get on with the above. We can run a few checks on viruses but off the top of my head overheating seems most likely.

Always pop back and let us know the outcome - thanks

message edited by Derek


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#6
June 18, 2015 at 13:50:39
"overheating seems most likely"

El cheapo power supply is another possibility. Just a guess. Complete system specs with make/models of the hardware would be helpful.


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