Games dont work well on my PC

[Lecorn16]

Hello guys!

I have a problem while playing games on my pc. The pc is pretty old but even the super old games for example the unreal tournatment GOTY doesnt work good. On some days it works fine but on some days it doesnt work. The screen just shows vertical lines for a few seconds or sometimes forever, until i reset it. i have a picture. http://shrani.si/f/2h/rm/2QC45OAC/zajeta-slikasd.png
i really want to play games so i dont know whats wrong with the pc, maybe my graphic card?
Any help is appreciated. Thank you

 

[Slow Pri]

Remove your graphics card and run off the on board video. Test that out and lets see.

 

[MnMWizard]

What are your specs? It's most likely either the GPU, PSU or Monitor itself.

 

[Lecorn16]

What are your specs? It's most likely either the GPU, PSU or Monitor itself.

Well i dont really know much about computers as i said before so i dont know my parts I didnt buy the computer eather but all i know is that its old and i didnt buy any new parts or anything, its just as it was when we bought it.

 

[MnMWizard]

It sounds like the problem is your GPU. To make helping you easier, could you download Speccy? It's a tool that shows all your hardware on one screen so all you have to do is screenshot it.