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ExpatGamer
12-28-2014, 05:29 PM
I'd like to consolidate some of the discussion of the G751 cooling issues here, specifically to gather evidence that the fan profile is to conservative. Hopefully, we can get Asus to release a new driver with a more aggressive fan profile or even some kind of fan controls.

Following hmscott's suggestion here (http://rog.asus.com/forum/showthread.php?40574-Asus-G750-Fan-control-Software), I tried Notebook Fan Control 1.1.1.19 using the config for the ASUS Zenbook UX32LN.

Making no changes to that config, only setting both fans to run at 100%, I got the fans running consistently at 3300 RPM as reported by AIDA64. Without NFC, the highest sustained fan speed I've seen is 3100 RPM.

Stress Testing with FurMark and Prime95 Small FFT in 20C ambient, I got an avg CPU temp of 82C (peak 84) and avg GPU temp of 64C. Its a HUGE difference from the other FurMark/Prime95 tests I've done and seen on these forums with CPU temps around 90-93C.

Screenshot here:
44696

This test isn't conclusive. Since I haven't played around with the Notebook Fan Control config, I don't know if 3300 RPM really is the max fan speed. From what I can tell, NFC doesn't directly set the RPMs, instead I think it sets power "steps." Anyone with more experience with NFC what to chime in here?

I would be careful with NFC. It is overriding the existing fan controls so the fans will behave differently. So don't be surprised when you're running the ASUS Zenbook UX32LN config and NFC doesn't turn the fan on until the CPU hits 50C. I didn't have any more dangerous issues like the fans suddenly stopping in the middle of a stress test but YMMV, so watch out.

NFC may interfere with the battery/charging system though. After my stress test, Windows started reporting that the battery couldn't charge and then later that there was no battery. At no time were there any extreme temps that could have damaged any components. I think the way that NFC was controlling the fan just somehow interfered with the battery/charging system. I did a system restore, unplugged for 10 minutes and the battery/charging system seems to be working fine now.

To me, these results strong suggest that the disappointing cooling we're seeing in the G751 is the result of a conservative fan profile and that this problem can be fixed with a software update. I put an inquiry in with Asus before Christmas but I haven't got a serious response. Does anyone with more experience dealing with Asus support want to suggest another avenue to pursue with Asus?

hmscott
12-28-2014, 06:13 PM
ExpatGamer, awesome testing, thanks for reporting your results :)

Sorry to hear about the battery problem, that is new, it didn't get reported for the G750...

The only thing that keeps me away from NFC, besides not really needing it, is that the NFC auto fan mode doesn't work right, and runs the GPU too hot for the G750JH- like you noticed for the CPU on the G751.

It is because the programmer didn't actually come up with a G750/G751 specific profile, and we are piggy backing on an existing Asus profile for another laptop that happens to work somewhat on the G750/G751.

If you, or someone else, with programming skills wants to download the source and make up specific profiles with a working Auto mode fan profiles, that would be great :)

ExpatGamer
12-28-2014, 07:05 PM
Glad this is helpful. I'm well motivated to figure this out since I'm nearing the end of my retailer's return period.

I was thinking about exchanging my G751 in case I just got a bad paste job but I was on the fence since I don't have any of the manufacturing defects that other people have been reporting. With the results using NFC, I don't think its worth rolling the dice on a new unit. It would be great if Asus support would get back to me and let me know if my temps indicated a pasting defect.

It actually doesn't take any special tech skills to make a new profile. There's a GUI for doing it. At least, setting the fan levels for different temps is straightforward. There are some other settings I don't fully understand yet. And I'm not entirely sure if the CPU and GPU fans are identified correctly. Each fan has "read register" and "write register" number (which are the same), which I assume refer to some registry or memory location. Then there are integer values for min/max fan speed. I'm not sure if those just define the increments by which NFC can raise or lower the fan speed as a proportion of the max speed (ie. 1/8th or 1/10th) or if they represent voltage steps or something else that could limit the top speed if the max is set too low (and possibly even damage the fan, if its set too high).

I'm somewhat concerned about what happened to the battery. I was hoping someone else would be brave enough to try this out to see my battery problem is even reproducible.

Really though, if the fan profile just isn't configured to bring the fan up to top speed to prevent thermal throttling, Asus should just patch it. It should be an easy fix since, unlike the sound problem, there's no 3rd party involved. We're talking about 6-7% increase in fan speed reducing temps by ~10C. Is there an Asus rep that checks this forum?

hmscott
12-28-2014, 07:13 PM
...Really though, if the fan profile just isn't configured to bring the fan up to top speed to prevent thermal throttling, Asus should just patch it. It should be an easy fix since, unlike the sound problem, there's no 3rd party involved. We're talking about 6-7% increase in fan speed reducing temps by ~10C. Is there an Asus rep that checks this forum?

ExpatGamer, if the tuning tools available in the GUI are enough, then go for it :)

At least you will find the limitations that require additional coding, which you can feedback in a request to the author for a G751 profile.

There are support people, and they can help with an existing case to help push it through, but you need to start the process by submitting a Technical Inquiry with your request. A feedback posting might be a good idea too.

https://vip.asus.com

Feedback is communications channel 8 in this list:
http://support.asus.com/contactus.aspx

Please keep us posted :)

rmuniak
12-28-2014, 07:44 PM
ExpatGamer that's fantastic job from your side. Thanks for the effort and please keep contact with Asus on that - hopefully they will give us some easy to use option to change the fan speed to decrease the temperatures.

NitroX
12-29-2014, 08:05 AM
Now this is really good news! Good job Expat! I was also thinking that I may have received a model with a faulty paste job, but testing the laptop in-game with MSI OnScreen Details turned on, I could see that the temps are gradually getting higher over a longer period of time. This meaning that the fans don't actually do their job as intended and the heat keeps accumulating in the case. I was also talking about this with Hmscott and another guy in a different thread :P. For example: After playing for 30mins AC Unity to warm up the components, I left the character in a specific area in which the CPU was kept constantly at 60-70% Total Usage and waited for another 20-30 mins to see the changes.

I would like to try that NFC application but atm I'm testing the undervolting of the CPU. I would really like ASUS to come up with an application that alows us to modify the fans RPM. The increased fan speed + the undervolting of the CPU will make this laptop as cold as it should be :D. +a repaste later if the warranty service offers this kind of option without losing the warranty, and who knows, maybe it will even support some OC :)).

You can see some of the results I've gotten with the Undervoltage method from Hmscott in the Post your reviews/temps etc. thread over here (at page 7 post #68): http://rog.asus.com/forum/showthread.php?52467-Got-your-new-G751JY-G751JT-G751JM-Post-your-review-temps-benchmark-results!&p=461645&viewfull=1#post461645
The results we're positive and today I will test the system again in a long gaming session of AC Unity (because there I found out how hot this machine can get :| ).


Later EDIT: @ExpatGamer: It seems that we've found the answer. The maximum RPM is 4200. The answer came from this poor guy who's fan went mad and now runs at maximum speed all the time: http://rog.asus.com/forum/showthread.php?55600-Asus-G751JY-CPU-Fan-suddenly-running-at-full-speed-all-the-time

ExpatGamer
12-30-2014, 06:22 PM
I just exchanged my laptop with the retailer and my temps have improved quite a bit.

Did a FurMark + Prime95 Small FFT stress test and didn't exceed CPU temp of 85C, avg 82-83C. Avg fan speed was 2800 RPM (peak 3000 RPM). Same 20C ambient conditions as before. Since the temps are lower with the fan running slower, I think I had a substandard paste job or some other manufacturing defect causing the high temps.

So if you're throttling (or getting close) on this test, you should consider exchanging/RMAing your machine.

I'm going to keep pursing the fan profile issue with Asus but its slow going. Next week I'll be back at home where the ambient temp is 30C, so we'll see how things shake out then. If the fan simply won't spin faster on the current fan profile, I could still have problematic CPU temps with the higher ambient temperature.

rmuniak
01-03-2015, 03:11 PM
ExpatGamer i tried your suggest setting with Notebook FanControl and they work perfectly! This profile keeps temperature of CPU at 80 C, with GPU at around 55! Of course now fans are getting pretty loud, but at least there is a choice - either i want temperatures close to throtthling or louder fans.

Great to see you get better temperatures on the new one. RMA is the last thing i would like to do, i already installed all the stuff, but probably will need to send it anyway for repasting after a year or so...

10 min of extreme test (small fft prime + fumark): with new profile i still get 93 max on CPU- although it is cooler for a 2 degrees average and hwinfo don't indicate any throthling, 71 GPU.

NitroX
01-06-2015, 05:44 PM
ExpatGamer i tried your suggest setting with Notebook FanControl and they work perfectly! This profile keeps temperature of CPU at 80 C, with GPU at around 55! Of course now fans are getting pretty loud, but at least there is a choice - either i want temperatures close to throtthling or louder fans.

Great to see you get better temperatures on the new one. RMA is the last thing i would like to do, i already installed all the stuff, but probably will need to send it anyway for repasting after a year or so...

10 min of extreme test (small fft prime + fumark): with new profile i still get 93 max on CPU- although it is cooler for a 2 degrees average and hwinfo don't indicate any throthling, 71 GPU.

Try doing an Undervolt also with Intel XTU

Boom_austin
01-06-2015, 05:52 PM
hey all i was also expierencing these issues. what i did was undervoly my cpu and i also downclocked 1x when the processor was using 3 or 4 cores. now my max temp is around 86-89 running furmark and the cpu stress in the intel xtu at the same time.

NitroX
01-06-2015, 06:26 PM
hey all i was also expierencing these issues. what i did was undervoly my cpu and i also downclocked 1x when the processor was using 3 or 4 cores. now my max temp is around 86-89 running furmark and the cpu stress in the intel xtu at the same time.

The undervolt should be the first action for reducing the CPU temperature because it actually reduces the heat that it is produced inside the CPU. Then the FAN power is a second solution along with a good repaste.

rmuniak
01-07-2015, 04:19 AM
I tried to undervolt but haven't noticed any lower temperatures under pressure - also my computer started to BSOD so i returned to default. I havve 4860 and tried -75MHz on both cores and cache.

Boom_austin which processor you have and how much undervolting you did? Please share!

hmscott
01-07-2015, 04:57 AM
In my experience the undervolt can help reduce heat noticeably, but reducing the core multiplier for 3/4 active cores by 1x or 2x is going to have a more profound effect on heat reduction under heavy load with 100% cores active.

Boom_austin
01-08-2015, 09:46 PM
rmu i didnt just underolt i also underclocked while 3 or 4 cores are being used. my undervolt was 90 on core 100 on cache. i beieve. i also lowered the multiplier by 1 on both during 3 cores and 4 cores. this jurastically lowered my temps like 6 or 7c and no more thermal throttling :D

i have the g751jy with the 4710qm and a gtx 980m. if anyone else has noticed the gpu and cpu seem to be sharing either a heat pipe or a whole heat sink pad. either way to see your true temps of cpu and gpu run a dual stress test. that will yield you your highest temps :D

hmscott
01-08-2015, 11:38 PM
Boom_austin, the G751JY (at least) shares heatpipes between the CPU/GPU:

45307

Boom_austin
01-09-2015, 06:07 AM
wow hmscott are you a asus tech or did you just rip into yours :P hahahah i had a feeling they thermally connected somehow

hmscott
01-09-2015, 01:42 PM
wow hmscott are you a asus tech or did you just rip into yours :P hahahah i had a feeling they thermally connected somehow

Boom_austin, that is an image uploaded to a notebookreview.com forum thread on the g751, they pulled theirs apart, not me :)

Here is the giant thread, but I don't have the specific post number for that article:

http://forum.notebookreview.com/asus-gaming-notebook-forum/761783-asus-g751-coming-maxwell-gtx-980m-gtx-970m.html#post9779570

Here is the other image they posted of their G751JY internals:

45313

godbold
01-13-2015, 03:25 PM
Hello everyone.I'm not sure if this question should be in this thread but can you tell me what should be the recommended temperatures for the CPU and the GPU for gaming in G751?For what temperatures we should strive and yearn:D

Edweird
01-13-2015, 03:49 PM
78 degrees seems to be a good place to be for me.

NitroX
01-17-2015, 11:08 PM
Guys, I have some news for you! And no, ASUS tech support didn't gave me any solution to my CPU fan rpm request. They keep telling me to update my drivers or go to the service for a repaste. Though, due to one user, Wishmaker, I have spent some time today and finally made up a fan profile for the G751 using NotebookFanControler . You can see more details over here: https://rog.asus.com/forum/showthread.php?56550-New-profile-for-fans-G751-JY&p=467982&viewfull=1#post467982 .
I hope it will work for you too. If not, just give me the feedback to see where I'm going wrong.

ELZZZORRO
01-18-2015, 12:38 AM
Not sure what is the issue with the G751-JY overheating?? Maybe you guys are overclocking, I am assuming. I can run for 4 hrs straight: XPlane 64 or FSX (1core) at full Resolution with everything cranked to the max and I never go pass 75 C. I am always idling at 37 C @ 2300 RPM. Coolest ( as in cool :0) ) gaming laptop ever.

NitroX
01-18-2015, 07:38 AM
You are one lucky fellow than :D! Although, try also a stress test with furmark+prime95 too see how high the temps can get. Because, maybe that game isn't that stressful for the CPU and GPU. Also, many of us do desire to have some headroom for a future OC of the GPU/CPU. And it is quite nice to set your fans rpm, because you can aim for two directions: a more quiet unit at idle or better cooling at load (or any other kind of configuration in fact).

QnS1086
01-18-2015, 01:56 PM
Hello,

About overheating, it seems it happens only when the laptop was in idle state (close/open the screen is enough to get this condition...) Otherwise it is OK for me even with FurMark.
http://rog.asus.com/forum/showthread.php?56616-GPU-Sensor-issue-in-G751JM-T7048H

NitroX
01-18-2015, 02:47 PM
Hello,

About overheating, it seems it happens only when the laptop was in idle state (close/open the screen is enough to get this condition...) Otherwise it is OK for me even with FurMark.
http://rog.asus.com/forum/showthread.php?56616-GPU-Sensor-issue-in-G751JM-T7048H

That's because you are running on a GTX860m and of course it won't build up as much heat as an GTX970m or GTx980m. But yet, there are also people that don't have temp issues with G751JY or JT... so we, the unfortunate ones that received some models with increased temps, are trying to get the best out of our laptops :)

Btw: Can you give me a link with that GPU Tweak which shows your GPU Rpm ? Please!

QnS1086
01-18-2015, 05:33 PM
Just follow my link to my thread and you will see my RPMs :)

NitroX
01-18-2015, 07:12 PM
:)) I was asking from where could I get that software ? Because I also have GPU Tweak. but it doesn't show me all that stuff

Gabgeri
01-18-2015, 08:16 PM
Hey guys, I've read through the topic, since I have some problems with my g751jt. So i was disappointed with the performance of the gtx970m, so I ran a few benchmarks, and compared to the ones made by other users on youtube. As it turned out, i have 50% performance! Did some digging, monitoring while benching, so what happens: As the load goes up, temperature increases, fan speed (as I can hear, cuz couldnt find a proper monitor program for it) stays almost the same. This will cause the GPU to reach the treshold throttle temp (88-89 celsiu), and some defense mechanism lowers the memory clock from 2505mhz to 800, then, as temp falls back, increases it back to 1600, but not to 2505 (just in some cases, for a few seconds, but it dropps again...). My rig is kinda brand new, and the performance has been this poor since I'm using it (not even a month). Do you think I should try NFC, or just contact ASUS support and return it for a patch-up?

Edit: I added a few extra volts on the gpu in ASUS tweak, which caused the temp to go up to 94-5celsius, but the
performance is still poor, and please, would you guys check it on your rigs, while gaming how are your air flows on the backsides? On mine, only the right side is blowing out heat, left side is kinda blank...

QnS1086
01-18-2015, 08:23 PM
@NitroX: it was simply preinstalled on the system. I think you can find it on Asus site.

BigDRim
01-18-2015, 09:06 PM
Hey guys, I've read through the topic, since I have some problems with my g751jt. So i was disappointed with the performance of the gtx970m, so I ran a few benchmarks, and compared to the ones made by other users on youtube. As it turned out, i have 50% performance! Did some digging, monitoring while benching, so what happens: As the load goes up, temperature increases, fan speed (as I can hear, cuz couldnt find a proper monitor program for it) stays almost the same. This will cause the GPU to reach the treshold throttle temp (88-89 celsiu), and some defense mechanism lowers the memory clock from 2505mhz to 800, then, as temp falls back, increases it back to 1600, but not to 2505 (just in some cases, for a few seconds, but it dropps again...). My rig is kinda brand new, and the performance has been this poor since I'm using it (not even a month). Do you think I should try NFC, or just contact ASUS support and return it for a patch-up?

Edit: I added a few extra volts on the gpu in ASUS tweak, which caused the temp to go up to 94-5celsius, but the
performance is still poor, and please, would you guys check it on your rigs, while gaming how are your air flows on the backsides? On mine, only the left side is blowing out heat, left side is kinda blank...
Left side is for CPU and right side for GPU. Your GPU cooling doesn't work i guess.

NitroX
01-18-2015, 09:09 PM
Dude... just RMA it -_-... this is a serious problem and the overvolting won't help you by any means. Stop messing with the GPU clocks and return it as it is or else you will loose your warranty and/or possibility to RMA the product if it gets damaged while you have changed clocks/volts.

Gabgeri
01-18-2015, 09:13 PM
Yea it will be RMA, I just tried NFC, i could make both sides work finally as loud as I have never heard, but this is not the problem... HWinfo shows, that the GPU memory load won't go above 50%, that explains that I had exactly half the score compared to other g751's... Any ideas on what can cause this?

Gabgeri
01-18-2015, 09:20 PM
Sry i made a mistake, so the right side is blowing, left is blank. But I guess, it is bacause it doesn't really ned to, since the gpu memory load wont go above 50%...

NitroX
01-18-2015, 10:14 PM
Hmm, it seems that now I've got the same issue with the battery that ExpatGamer had in his first posts. I've already tried a system restore from 3 days ago (when NBFC wasn't even installed) and it seems that it didn't helped with anything :|.... Aand I can't seem to be able to make a Bios reflash since my bateery level is now on 5% and it will not charge anymore (I need a minimum of 20%). Any ideas ? @ExpatGamer: Did you reproduced this problem on your unit ?
I managed to get in this situation by changing the register write/read values ... God, the laptop has gone mad after I changed those values. It was constantly making "left click" with/without the mouse in and then it went into sleep mode and after that I saw that the battery led is blinking in an orange color. ANyone knows what that blinking is suppose to mean ?


EDIT: Problem solved by simply restarting the laptop and pressing the power button for 5-7 secs after the RoG Logo appeared(until de battery led went from blinking to a steady orange). The battery is now charging again. It seems that i've made a full battery calibration with this unfortunate problem :)).
45673

BigDRim
01-18-2015, 10:33 PM
Orange blinking only means that you are under 10% and plugged in.

Gabgeri
01-18-2015, 10:41 PM
Hmm, it seems that now I've got the same issue with the battery that ExpatGamer had in his first posts. I've already tried a system restore from 3 days ago (when NBFC wasn't even installed) and it seems that it didn't helped with anything :|.... Aand I can't seem to be able to make a Bios reflash since my bateery level is now on 5% and it will not charge anymore (I need a minimum of 20%). Any ideas ? @ExpatGamer: Did you reproduced this problem on your unit ?
I managed to get in this situation by changing the register write/read values ... God, the laptop has gone mad after I changed those values. It was constantly making "left click" with/without the mouse in and then it went into sleep mode and after that I saw that the battery led is blinking in an orange color. ANyone knows what that blinking is suppose to mean ?
45673

Try flashing from BIOS with a pendrive.

NitroX
01-18-2015, 10:43 PM
Thank you for your responses. I already solved the problem in a more simply manner (see the edit in the last post).
@BigDRim: I was at 96% when it started blinking :)). And I couldn't charge the battery anymore. It is something related to the PowerManagement. This is a common issue on ASUS N550 laptops. Battery led starts blinking from unknown reasons and then the battery won't charge until the PowerManager isn't reset by : holding the power button as I mentioned above, reflashing the bios or unplugging the battery manually. Any of those methods work.

It seems I can keep messing up with the NBFC :D. Though, I think I'll make a break for a couple of days until I finish with my next exam.

Gabgeri
01-18-2015, 11:11 PM
Thank you for your responses. I already solved the problem in a more simply manner (see the edit in the last post).
@BigDRim: I was at 96% when it started blinking :)). And I couldn't charge the battery anymore. It is something related to the PowerManagement. This is a common issue on ASUS N550 laptops. Battery led starts blinking from unknown reasons and then the battery won't charge until the PowerManager isn't reset by : holding the power button as I mentioned above, reflashing the bios or unplugging the battery manually. Any of those methods work.

It seems I can keep messing up with the NBFC :D. Though, I think I'll make a break for a couple of days until I finish with my next exam.

Well, be careful though, when I turned fans to 100%, the system just let the gpu to 94-5 celsius, without the increase in performance... So it will be totally RMA, just sayin, always check the sensors while messing with the fans...

NitroX
01-18-2015, 11:22 PM
Of course. I am always monitoring the temperatures and I am making the tests in a silent environment so I can hear the fans rpm. I am also using 2 screens (my laptop display where I make the tests and my LCD TV which I use to keep an eye on HW Monitor/Aida64/NBFC percentages. I am annoyed by the fact that I can't seem to find any software that shows the GPU rpm... I would have helped me to have a better point of reference for each NBFC step.
BTW: I've also experienced the same thing with 100% fan. While on 100% you can see that the fans are turning down to the idle level or even shut down. I don't know why . That's why I am using only a maximum of 80% which keeps the fans more than alive :). So, your GPU went to 94C because the fan wasn't actually working.

To solve this issue just check the steps by manually setting each step while in idle (on the window that shows both fans with Auto, you can select the steps manually and test them to see if they work). And then, see what is the highest step which allows your fans to run at maximum speed (for me, at 60% the CPU fan is going on 3300rpm). AND you should also change the "Critical level" to 100C or above, so NBFC won't change your fans to 100% step when it reaches the critical temp (because 100% step actually makes you fans to stop or work on lower rpm, as it happened to you).

Gabgeri
01-19-2015, 12:00 AM
Of course. I am always monitoring the temperatures and I am making the tests in a silent environment so I can hear the fans rpm. I am also using 2 screens (my laptop display where I make the tests and my LCD TV which I use to keep an eye on HW Monitor/Aida64/NBFC percentages. I am annoyed by the fact that I can't seem to find any software that shows the GPU rpm... I would have helped me to have a better point of reference for each NBFC step.
BTW: I've also experienced the same thing with 100% fan. While on 100% you can see that the fans are turning down to the idle level or even shut down. I don't know why . That's why I am using only a maximum of 80% which keeps the fans more than alive :). So, your GPU went to 94C because the fan wasn't actually working.

To solve this issue just check the steps by manually setting each step while in idle (on the window that shows both fans with Auto, you can select the steps manually and test them to see if they work). And then, see what is the highest step which allows your fans to run at maximum speed (for me, at 60% the CPU fan is going on 3300rpm). AND you should also change the "Critical level" to 100C or above, so NBFC won't change your fans to 100% step when it reaches the critical temp (because 100% step actually makes you fans to stop or work on lower rpm, as it happened to you).

Mhm, nice. Conclusion? I did not pay 1k+ euros for my rig to do extra hours of testing and stuff, I will let the support deal with this :D

NitroX
01-19-2015, 10:41 AM
I totally agree with you. This is also why am bothering ASUS Support and ask them for a future update on the fan profiles. But, until now, I only received answers like: install the latest drivers, ask the warranty service for a repaste, use a coolpad. Yeah, use a freaking coolpad for the Asus G751 which specifically says "Dual fans with copper heat sinks keep temperatures low for guaranteed stability" on its description. Nice marketing...
I will take back all I said if eventually the tech support team will come up with an update for the fans, or even with a damn software that controls the rpms... It's not that hard taking into consideration that using an off the market software like NBFC can do that, even with the flaws it has for our model.

EDIT: Ok, so I just received the answer from ASUS Support team and they seem to have understand what I was asking for. They said that they will announce the development team to solve this issue on a future bios release. Now, I don't know if this is actually what they are going to do, or they just old me that in order to get rid of me... I asked the guy that gave me the response to keep me in touch with what the development team will say to this issue. It seems that, for the moment, we only have to wait.
I strongly encourage others to do the same if they have temperature issues on their units, so the development team will understand that this is a common problem that needs solving.

Gabgeri
01-19-2015, 11:23 AM
True, true, I just submitted my RMA 5min ago, called the support center, they said, they will process my request, and probably tomorrow the GLS will come and pick my rig up :))) I hope they are as helpful and quick about this as they said...

rogdood
01-19-2015, 09:06 PM
I am somewhat surprised to read about overheating. So far, my unit (751JT) has seen temps of max 79C for CPU and some 67-68C for GPU, standard cooling profiles. I guess I'm either lucky or just need to wait for issues haha.

About fan speed... my older Sager was A+ in terms of support; in order to keep the temps low, they provided BIOS updates that gave you 3 modes :
-Fn+1 for max fan speed, which kept the GPU, at that time, a 7950 GTX at, and am not kidding AT ALL, at MAX 55C at all times and CPU at 65C, with Undervolting, of course,
-Fn+2 medium fan mode (like a 30% fan speed permanently until temps reached 80C, when the fans went into full mode)
-Fn+3 was like 50% fan speed with the same 80C (I might be wrong about this one though).

So....being a gaming laptop, main priority should be cooling, in order to get the max performance at all times. I don't see why ASUS could not do the same thing... I ran my Dell XPS M1730 at 100% fan speed for nearly 5 years and had no problem with the noise, since the temps were under 75C at all times...

It's a matter of priorities and performance on demand. ASUS should give such a small thing for a great reward.

NitroX
01-19-2015, 09:14 PM
This is just what we are hopping to get on a future Bios update. They could also implement more fan profiles if they are willing but I would just be satisfied if the fans would go to a 3200-3300rpm once the temps reach 70-75C. It seems that the high temperature problems are more common for the units that shipped before Christmas. It may be that they have changed something for the next shipments. I don't know what happened. I may also go for a repaste on the CPU at the warranty service when summer gets near.

m17xr2b
12-16-2015, 08:30 PM
Want to share my experience. I bought a G751JT last year, ran great with max temps of 85 cpu and 70 gpu. Last month it dropped dead, sent it to ASUS and they changed the motherboard. Since then my cpu temps are as high as 95. I decided to take thing into my own hands and re-paste it with MX-4. Some pics of the internals.

Now sure how they managed to bend the fins but I managed to straighten them.

Now my max CPU temp is 77 and 65 for gpu (with +135 Mhz overclock).54113

While I was doing putting it back together I had not installed the keyboard fully, just plugged the cables so the fans were exposed and noticed that they do not spin al low temps. Even watching a youtube video the gpu fan was not running. Once I started a game it ramped up. I will never understand why the fans don't have proper intake. Did a test like this and the CPU did not exceed 65 in aida64.

Exostenza
12-17-2015, 09:29 PM
@NitroX

I just want to give a big shoutout to NitroX for his fan profile. Testing it in Unigine Valley from the stock fan profile I get a whopping 20C lower on my GTX 980m and the extra noise is pretty much not even noticeable. Thank you so much!!!

Brask
04-19-2016, 04:52 PM
@NitroX

I just want to give a big shoutout to NitroX for his fan profile. Testing it in Unigine Valley from the stock fan profile I get a whopping 20C lower on my GTX 980m and the extra noise is pretty much not even noticeable. Thank you so much!!!

I have contacted him for the gpu profile and still didnt receive any answer from him.