NP700G7A GPU fan not spinning

[HammerllFixIt]

When I power on, the CPU fan (on the right) sounds like its going full blast (with hefty air flow out the back), however the GPU fan (on the left) isn't spinning at all and heat starts building up within a couple of minutes. I have replaced the fan with a new one but it still doesn't work.

 

[IRONBATMAN]

NP700G7A ? Is that a laptop ?

 

[HammerllFixIt]

NP700G7A ? Is that a laptop ?

Yes, It's a Samsung series 7 gamer.

http/www.samsung.com/uk/consumer/pc-peripherals/notebook-computers/high-performance/NP700G7A-S01UK

 

[HammerllFixIt]

I'm guessing I need to find out if it's a software or hardware issue. But I can't find any controls or information on the fans in the BIOS or the control panel in windows 7.