View Full Version : G750JX noisy fans

Studio 45
11-01-2013, 02:05 AM
When I turn on my new G750JX, after minute or two it starts to spin it's fans.
Few minutes later, it spins them on higher speed and the noise becomes very noticable.
No heavy process is started and CPU load goes from 0% to 3%.
After starting some heavier process like watching Youtube videos, it starts to produce even more noise.
Room temperature in which I keep my laptop is 23 degrees Celsius.
I tried with changing Power options but it didn't help.
Is this normal?
Should I return my G750JX?
Or is there a way to slow down fan speed?
I bought this laptop for sound editing because it has enough power and speed for the software I use.
Based on some recommendations and internet reviews I thought it woud be quite silent .
My wife has an MacBook Pro and when she's watching videos or browsing, fans don't start to work and her computer is absolutely silent.


P.S. I also noticed that turning off wireless network makes fans turn on less frequently.

11-01-2013, 06:14 AM
i think you sent back to check or return, will be better. i think you still in warranty.

Studio 45
11-01-2013, 01:09 PM
Yes, my G750JX is completly new.
Before I start to bother with return or repairment, has anyone else had this same experience?
Is it normal for this model to run it's fans almost all the time?
Now I also noticed that after powering on G750JX and turning only Internet Explorer on makes it's fans to start.

11-01-2013, 02:58 PM
.... no.

Only times when my fans are extremely loud is when I run some benchmarks, even Battlefield 4 doesn't make it noisy as hell.

I would get a new one since your under waranty (If your under a store warranty usually 7-10 days I would get a new box ASAP instead of waiting on support)

this is my opinion.

11-01-2013, 03:30 PM
Download HWMonitor (google it) and check what the temperatures are for the CPU and GPU when idle (but when fans spin loudly). It's likely a bad paste job causing overheating even under light load, and would require RMA, but at least you'd know what's going on.

11-01-2013, 03:32 PM
You should return it. My 750 is almost always silent. Must be a software bug and you should get your computer replaced.

Hope everything goes smoothly during the return process if that's what you choose to do.

Best of luck sir.

Studio 45
11-01-2013, 06:36 PM
Thanks everyone on quick replies.
I downloaded HWmonitor and did some tests (with and without battery - situation is similar).
When I turn on G750 , go to desktop and no program is running except HWmonitor, THRM temperature (I suppose this is sensor somewhere inside laptop) is cca 43, CPU temperature is cca 43 degrees and GPU temperature is also 43 degrees.
Then THRM temperature quickly climbs to 45 degrees and fans start to work.
After two or three minutes, it falls to 42 degrees and fans turn off.
Then again, few minutes later, it climbs back to 45 degrees and fans start to spin again.
Also, I noticed strange behavior of CPU sensor.
It shows 43 degrees and suddenly it jumps to 55 degrees for one second, then returns to 43 making fans to start spinning again.
Is this something that other users experience on their G750's?
Tomorrow morning I'll go the vendor who sold me this laptop and I would like to have some good argumets for replacement.
I also did one test with IntelBurnTest v2.54 in Standard mode.
CPU temperature climbed to 93 degrees Celsius in a few seconds, and havent't passed that temperature during 2 minute test,
Fans were pretty noisy, especially left one, produced high pitched noise like jet plane is going to take off.

Thanks again,

Studio 45
11-01-2013, 07:10 PM
I also remembered one thing now.
When I turned on this laptop for the first time I got this message on a blue screen:
Your PC couldn't turn off properly
The operating system on Your PC failed to turn off properly and needs to be repaired
Error code: 0xc0000001
You'll need to use the recovery tools on your installation media.
If You don't have any installation media (like a disc or USB device), contact your system administrator or PC manufacturer."

Does this mean that somebody used it before me?

Thanks again,

11-06-2013, 09:35 AM
the only time it gets noisy for me is when i render videos using adobe premier pro or after effects, that too only the left hand side one as it is for cpu ( right one is for gpu)
that made me think the right hand side fan does not work and i had to put my ear on it to make sure it works.
so thats how silent it can be in ideal conditions.

11-07-2013, 03:17 AM

I have an Asus G750JX for nearly two months.
Nothing special to report , however, since the first day of use , I feel that the fans are too present.
For example, whether on battery or "performance" mode, or "energy saving " mode, the fans are equally present.
When I play the game, the fans become louder, so, it is not at max yet.

TEMPS 5mn after reboot
CPU Freq: 800mh
Core temps average 44
GPU temps: 38

But for example, as I write this post, I 'm on battery save mode , I make no particular thing, and the fan is still in continuous operation , on both CPU and GPU. Sometimes the GPU fan get lower.
In front of the screen, I just hear a constant little "buruuusushshs"


It seems to me quite disturbing . Because I had the opportunity to test the latest retina macbook this afternoon and stay completely silent , even when benched and for the same perfs ! (except for the graphics card of course)
However, the G750 a large heatsink , it should be silent! But it's really the opposite!
I also read on forum that when on battery , sometimes the fans are supposed to stop. In my case, they have never stopped !
Sometimes it happens to it, when I really do anything to become a quieter a notch. You can almost no hear the fans anymore . But this is very rare.

I started to watch a video, and the graphic card started blowing air a bit. Now both are a bit warm and ven if I have closed the movie, it remains warm and still blow.

What do you think ?

I can make a video if you're interested

11-07-2013, 07:42 PM
My fans are always blowing air aswell (especially the Gpu one), i bought that ASUS ROG because they have the reputation of being quieter than others laptops and no need to say that i'm really disappointed...

11-10-2013, 12:19 PM
Hi. I bought a new ASUS G750Jx 5 days ago. It works completly fine the only think that bothers me are the fans. 2 days ago they were starting to blow constantly, the GPU produce more noise than the CPU. I compared my sisters 3 years old Hp ProBook while waching a movie and my ASUS and the Hp was completly quiet comper to the ASUS. What should i do? Sould i return it or is this normal? I m a little bit confused reading all the posts. :D

11-10-2013, 01:10 PM
And i forgot to tell that i can hear the fans even if i m not runnig enything, GPU is blowing air constatnly?

11-10-2013, 06:26 PM
Yes, same for me. :(
Is this normal?

The GPu don't blow constantly, sometimes it is nearly silent, but, now for exemple, it is not and i'm doing nothing.
A macbook has no such air vents and is perfectly silent.

11-10-2013, 07:54 PM
Hey guys, i can only report feom my g750jh which have same behaviour. The gpu and cpu fans are often off right after the notebook is started. Once you play and use it for something like an hour or more, the fans will wont go off even in idle mode because of remaining heat inside the cabinet. Therefor i guess everything is normal...dont compare asus products with apple. The difference is too big

11-12-2013, 06:26 PM
Mine are never off even after letting it on iddle during 5 hours.

Why do you say it's not the same thing?
You mean I bought this gaming laptop that is twice fat as a macbook to get more noise on web browsing than the macbook that don't have the two heat dissipators and has the same perfs?

01-17-2014, 04:20 AM
Hello everybody,
I noticed this behavior on my G750JW too. The GPU fan begins to spin loud although I don't do anything GPU intensive on my laptop. I only read some wikipedia and have some pdf files open and I can clearly hear the GPU fan. After some time the fan will become quite, but later it will spin loud again (I didn't measure the time, it seems random).
This behaviour is much more persistent when I use linux mint (again only some browsing). I can't find a way to mitigate this behavior. Kind of frustrating. Maybe this is the price for not having optimus.

01-20-2014, 06:57 AM
Hello everybody,
I noticed this behavior on my G750JW too. The GPU fan begins to spin loud although I don't do anything GPU intensive on my laptop. I only read some wikipedia and have some pdf files open and I can clearly hear the GPU fan. After some time the fan will become quite, but later it will spin loud again (I didn't measure the time, it seems random).
This behaviour is much more persistent when I use linux mint (again only some browsing). I can't find a way to mitigate this behavior. Kind of frustrating. Maybe this is the price for not having optimus.

failsafe/Guys, have you tried changing your power plan to set the CPU to idle at 0% minimum, and 100% maximum? Setting it to 100%/100% keeps the CPU at full speed even under light load / idle conditions, which keeps the CPU hot all the time, causing the fans to run.

If you find Power4Gear continually resetting your power plan back to 100%/100%, you can uninstall it and use the built in Windows Balanced (set it to 0%/100% min/max CPU), and use High Performance (CPU Min/MAX 100%/100%) for benchmarking - it won't really help gaming enough to make a difference and it will keep the CPU at 100% when not needed, generating more heat than needed.

You can also under volt the CPU / CPU cache using Intel XTU (Extreme Tuning Utility), and set both at -100mV first as a test, and drop down to -75mV if you find -100mV make things unstable - after you crash at too low a voltage XTU won't apply that setting at the next boot - so you can change it before applying XTU settings.

Intel XTU:

You don't even need to overclock to make use of XTU, just use it at stock speeds but with lower voltage to the CPU to reduce heat.

My JW was stable at -125mV/100mV depending on the load, my JX was stable at -75mV/-50mV based on load, and my JH only likes -15mV to be stable. But, every little bit helps :)

If you want to get extremer, you can turn off CPU turbo by setting the Power Plan Max CPU to 99% or less, that will keep the CPU from getting hot too - but you give up performance, which you might not need - only way to find out is to try it :)

Here is a stock clock XTU -50mV profile to get you going. Install XTU, load the profile, show values, and then Apply.

For those wanting to get max performance from their CPU, here is a profile with all the CPU/cache multipliers at full Intel approved Xtreme settings with -50mV under volt. You need CPU Turbo to reach these speeds, so keep your Power Plan CPU Min/Max at 0%/100%

Again, I recommend removing Power4Gear as it doesn't do anything more than the stock Windows Power Plans, and it keeps resetting itself as the primary plan even when you don't want it - it got annoying when it goes behind my back and undoes a manual setting I made, so I got rid of it :)