Any idea what is causing a low frequency rumble when do anything graphical

Amrath

Commendable
Apr 20, 2016
2
0
1,510
My system has been running fine until recently, however a couple of weeks ago it has developed a low frequency rumble when doing anything graphical, whether its scrolling a web page or playing a game its there. I have replaced everything except monitor, which the sound does still persist even its switched off. Apart from going mad I can not find a solution. I have a video in which it can be heard if anyone can help!!!
My rig is:
I7 920 O/C to 3.5GHz
12 Gb Dominator triple channel ram
Nvidia GTX 780
Logitech G300 mouse
LG 24" monitor
Turtle Beach P11 headset
The PSU is an 800w Artic supply.
 

Amrath

Commendable
Apr 20, 2016
2
0
1,510


The PSU is an 800w Artic supply and the RAM frequency has not been modified. The noise has only started happening in last few weeks and have had the system for over 6 months.