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View Full Version : right side fan dosnt work. [solved ?]



flint47
10-23-2013, 08:28 AM
well, i got my laptop about a week ago and i have been using it much. today i installed a game and noticed that right hand side fan doesn't seem to be working. any ideas ?

thanks in advance.... :D

Zygomorphic
10-23-2013, 10:19 AM
Welcome to ROG, @flint47. You have the G750, I presume? Make sure that you are running the latest nVidia drivers. Also, are you certain that the fan isn't working, or is it just running quietly? The G-series notebooks are famous for their quiet operation and cool temperatures, so it can be hard to hear the fan in a cool room with some ambient noise. I often have to feel the grilles to be able to know if my fans are running in my G53SX.

flint47
10-26-2013, 12:04 AM
thank you....

well, it does not emit any air out. it sucks in. thats why i coudnt feel anything. i literally had to put mu ear on it to be sure. so yeah it does work (either that or the drivers worked, either way) it was very dumb of me and i panicked unnecessarily.

thanks for helping me out with it....

Flea0
10-26-2013, 11:17 AM
in my experience the right hand fan (which is for the CPU) is almost unnoticeable unless you strain it on purpose. the only real noise the laptop makes is the left gpu fan which is always on. In fact i often cannot feel air coming out from the right at all, that's how little cooling the cpu needs at low loads.

hmscott
10-28-2013, 01:48 AM
well, i got my laptop about a week ago and i have been using it much. today i installed a game and noticed that right hand side fan doesn't seem to be working. any ideas ?
thanks in advance.... :D

The G750 runs quiet, and lets the CPU / GPU heat up for a while before deciding it is a heat increasing trend and then kicks the fan up into the audible range.

Looking from the front, the Left Side vent is the CPU vent, and the Right Side vent is the GPU fan.

When doing CPU intensive things you hear the Left Side fan run up the fan and start making noise. While the Right side fan stays silent. If you are only hearing fan noise from one side then the other side isn't getting hot enough to run the fan up into the audible range.

And, doing CUDA or graphics intensive operations the Right Side fan kicks in, but if the CPU component of your task isn't demanding the Left side fan might not spin up as loudly as the Right side GPU fan.

Here are a couple of tools I use to spin up either fan.

Great Internet Mersenne Prime Search - run the default option that comes up - all CPU cores at 100%.
http://www.mersenne.org/

Furmark - run the 1080p benchmark, it is short but kicks up the GPU fan on the Right side
http://www.geeks3d.com/20130719/furmark-1-11-0-gpu-vga-videocard-burn-in-stress-test-opengl-benchmark-utility-nvidia-geforce-amd-radeon/

Heaven - nicer to look at over time, and also kicks up the GPU usage / fan
http://unigine.com/products/heaven/

If you want to kick up both fans at once, I have found that running BIONC on the SETI or Einstein projects, including accepting GPU / CUDA jobs can get both sides running at 100% CPU/GPU/Fan speed/noise.
http://boinc.berkeley.edu/
http://einstein.phys.uwm.edu/
http://setiathome.berkeley.edu/

When I first got my G750JW, I thought the fans weren't working correctly either. It took a while to get used to the fan run up and not much longer to appreciate how the delayed fan run up keeps the laptop quiet and cool.

flint47
11-06-2013, 09:24 AM
i guess that explains.
i was just being dumb about the whole thing i suppose.

thank you for your time :D