Pretty much true in my case. If you're having the same problem as I did, all you really have to do is move the wire connecting the fans to the motherboard away from components on your laptop.
My story here: https://forums.tomshardware.com/threads/why-is-my-gpu-fan-insane.3532974/post-21412825
It's a really dumb design flaw. Not ragging on ASUS at all, you can't really predict this is going to happen. Just seems like it's receiving either heat from components they're touching, or EMF interference from being so close.
Shouldn't take you more than 30 total minutes to fix it. Please let me know if this helps someone so that we can figure out whether or not I accidentally fixed something else isntead, haha.
This quote led to the answer.
Ignore every other software,utility, driver and BIOS speculation.
The problem with the fan is the wire connecting it. It is either caused by the connector not connected properly or some interference from the chip that the wire hangs over.
I looked up a video how to teardown the laptop. The GL703GE is very easy to work on. The video is here:
From that video, you can see below that the wire in the video is looped around a resistor or capacitor or something (some silver cylinder). It does NOT hang over the chip near the fan. My machine, and most other pics I have seen online, show the wire handing over the chip that is just under the person's baby finger in the picture below.
I looped my wire the way it shows in the picture, made sure it was connected (it already was), and the problem has never happened since.
I was having the same issue (GL703GE). Didn't remember exactly when that happened, but I think it happened after I updated the nVidia GeForce Graphics Driver to the latest version.
I am able to solve this by uninstalling all nVidia Driver from control panel, and then install the nVidia Driver from it's backed up folder. Mine is located here :
That's all I did, I don't update OS or BIOS, only playing around nVidia Drivers.
Now it still happens after I boot up my laptop, but only for 5-10 mins. Not the whole times -_-
If it still runs the higest RPM, try to test your GPU using FunMark. Do the 1080(FHD) or 720 benchmarks.
Hope this can helps.
Edit (3 days later) ::
The issue still happens. Damn. I go to Asus Service Center to ask about this problems. He (the CS) said there are several unit having this problems (and why Asus don't fix it -_-). So he said some recommendations to me:
1. Update your BIOS to the newest. If it still not fixed it.
2. Probably the fan itself or the heat trigger is error. Give your laptop to them so they can examine your fan problem.
3. The worst, motherboard burnt...
EDIT 2 ::
Fixed by Asus Service Center -_-
They said the cable or connector or whatever didn't work properly.