Red Lines on Screen

[boobaca]

I've just been playing a game when i started getting red lines across my screen , i pushed in my power lead in my monitor abit more and they seem to have gone but was that just a coincidence? or would a loose power lead actually cause this. Temps seem fine , around 45-50 while in-game.

 

[Lartyconshayo]

Not sure . Could be gpu . See if it happens again with the power lead in properly and take it from there

 

[DaleTheWhale]

Have the lines appeared since?
Try running Heaven Benchmark for your GPU, see if you get artifacts or anything?

 

[boobaca]

Seems to be fine up to now , no sign of the lines etc, if it happens again ill do a benchmark etc.