Monitor losing signal and gpu fan flowing 100%

[lokodon]

I having problems with what i think is the gpu, While running graphical intense games the screen will drop to black and the gpu fan will run at max speed. I've giving the case a clean as my first thoughts were that it was a dust build up. I've also re-seated the gpu and checked the psu conections. reinstalled the graphics driver also. I find it weird that it's a recent problem as I've had next to no issues since buying it last year.
Any help would be appreciated.

My build:
Intel i5 6600k cpu
Gigabyte h170 gaming 3 mobo
Radeon R9 390x Gpu gigabyte brand.
Corsair Rm750x Psu.
16 gb ddr4 ram.
2tb hdd and 250gb ssd samsung evo m2

also the case is the corsair carbine air 540 if that makes a difference.

 

[Lakken]

Ever tried overclocking? changed anything in Bios?

 

[rgd1101]

and the cpu/gpu temp during game?

 

[lokodon]

Haven't changed a thing i bios, miss wrote the cpu, it's not overclocked. (it's a non k) i'll have to check the temps but with deus ex and forza horizon it blacks out on while its loading up

 

[lokodon]

Gpu running at 54 degrees celsius before it blacks out and the fan turns to full.

 

[lokodon]

It would appear that the problem was the gpu power cable had dislodged from the psu creating improper connection. Changed the cable, changed to another port on the psu and the position of the gpu. Thank you for your time sorry it was a waste of it though.

 

[Lakken]

Its never a waste of time. Every problem we all encounter regarding pc's and solves will help others...