Computer screen works for some seconds and then go black.

Valter Medeiros · Aug 31, 2014

Video Download
This is a video showing my issue. To temporary fix it i need to press On/off on screen till displays windows 8.

My specs: :no:

AMD FX 8350 8-Core 4Ghz
Asrock 990FX Extreme 3
MSI Twin-Frozr GTX 760
HyperX 2x4GB RAM

Phillip Corcoran · Aug 31, 2014

76 MB video download - I don't think so, my bandwidth is only 2 Mbits!

Try a different monitor and if that one works okay, the other monitor is faulty.

Valter Medeiros · Aug 31, 2014

Phillip Corcoran :

What if I don't have another screen? :/

Warlock79 · Aug 31, 2014

if you look like reallllly close to the screen can you see the desktop? you need a well lit area to see this.. if so I have bad news for you. Monitor backlighting has gone bad most like due to the main load capacitor on the inverter board which controls the LED or cathode lighting in the monitor, unless your handy with pulling the monitor apart a soldering irion and understanding what the codes mean on the capcitor to order a 5 dollar replacement for it, chances are you need a new monitor

Phillip Corcoran · Aug 31, 2014

"What if I don't have another screen? :/"

Borrow one if you can, or try your monitor on another PC. One way or another you've got to establish whether or not your monitor is faulty and that's the only way to do it.

Xibyth · Sep 1, 2014

Warlock79 :

In most monitors, the inverter is on an entirely separate board, I replace them daily on tough-pads and business laptops for a living. Try rolling through amazon and looking for an inverter for your specific monitor. If you find it great, if not it is likely on the monitors main board.

Valter Medeiros · Sep 2, 2014

Warlock79 :

I can't, when hes bugged (black screen) its like if it was disconnected and then when I press on/off like the video it flashes the desktop.

Valter Medeiros · Sep 2, 2014

The most awkward thing is that after press on/off for a while it keeps working till the next day of pc use, or hours. I can restart, shutdown, it will work, but after some hours I need to do the same thing, over and over again...

Warlock79 · Sep 2, 2014

that sounds like a bad switch or maybe a bad soldering connection in the monitor , if the desktop is going when you push it on and off and on and off ,,, sounds like the desktop is working fine ,,, one more thing to try ,,,,, reach behind the monitor see if wiggling the cable some (just gently) effects if the screen comes on or not.

Valter Medeiros · Sep 2, 2014

Warlock79 :

I tried to do that behind and nothings happens.

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Computer screen works for some seconds and then go black.

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