PC freezes when launching games since move

[ricsaka]

Hi,
I have recently moved house. My PC didn't even wanted to start first, it just beeped four times than nothing. I've moved the cables a bit than eventually it started fine. Since then when I launch a random game I just get a black screen and the whole system freezes and only hitting the reboot button works. It doesn't happen all the time but it happens often.
Is it the HDD? Or maybe a graphics card?
I think the cables are fine now.
Please help!

Thank you in advance for every answer!

 

[Ironsounds]

Hello... You are just going you have to get your hands dirty and inspect, un-plug and plug back in all the electrical... and Ram sticks... and The Video card will have a release latch... Something came loose from the MOVE... and you can find it... B ) ...Be Power Safe and not force or Pull too hard... a lot connectors have release latches... if something won't disconnect move on to something else then... it won't take long to find it I'm sure. B )