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Windows 7: [Acer Aspire 5750G] Fan not turning on/off when needed.

17 Jun 2015   #1
Foivos

Windows 7 Ultimate x64 bit
 
 
[Acer Aspire 5750G] Fan not turning on/off when needed.

Ok so i'm gonna tell you the whole story so that you'll know everything needed , and answer me instantly without asking questions that you'd normally do with the first reply.
I had some very severe problems with FPS while playing League of Legends. Pretty unusual , very low , and 15~ FPS.So it appears that the problem is throttling. Temperatures reached 95-100 C while playing.Clock speed went to 0.8 from the 2.7 it normally should be.Pretty huge i (assume?). Then a friend explained to me the whole deal with CPU throttling.(Laptop is ~3 years old) I never actually opened it since the day i bought it.So he told me to open it up (sidenote , watch this video and you'll understand why i wouldn't even try : https://www.youtube.com/watch?v=maoRU9NhyJo ) and clean every possible dust buildup that there is , including inside the fan , and to apply a good-quality thermal paste to CPU/GPU.And so I did it.In case you wanna know which thermal paste i used , its Arctic MX-4.An other thing i missed to tell you is that before i opened up the laptop , fan was not even working.At all.And i think it really should have cuz there wasnt a huge dust buildup or something like that.ok so after that i obviously tested the FPS i'd get.it was still the same as before with 5 C diffrence.nothing in FPS tho.then after playing and other game , the fan decided it was time to actually work.and when it did i literally felt vibrating the whole laptop.and this time from the left side , istead of just being hot , there was a ****ing flamethrower ...(really damn hot air coming out) temperetaures reduced by approx. 20 C when fan was active.overall run the game on medium without shadows and perma stable 60 FPS. exactly what i wanted.then i played an other game. fan said it was time to sleep so it went off and fps dropped again.anyway these happened many times so then i decided to look for some Fan Control utilities , like acfancontrol and an other thingy from youtube that seemed to work for other 5750g owners.i dont know which worked , or if they even worked , after playing some games , fan was perma-on and it was some really satisfying gameplay.then i shutted down the laptop and booted again.fan then was off the whole game.fps was a liiiitle higher but i couldnt play to my full potential.ok so guys. what do you think will fix my problem and make my fan controllable so i can set a temp when it starts to turn on ? or perhaps its jsut faulty and i need to replace it? it wont be very costy since i have to buy the exact same model which is shitty and cheap probably..what do you think i should do ?

p.s : an other piece of information that's probably useless but i want to mention it : i also have a thing that helps the laptop stand and offer some cool air.


My System SpecsSystem Spec
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17 Jun 2015   #2
GokAy

Windows 7 Ultimate x64 SP1
 
 

Did you double check the fan program? Maybe you missed a setting.
Try loading the defaults in BIOS.
My System SpecsSystem Spec
17 Jun 2015   #3
Foivos

Windows 7 Ultimate x64 bit
 
 

On the first fan program there were only 2 buttons.On the second one it was very complicated and you had to torture your cpu to get soem values and then try combinations of numbers in order to get your fan to do what you want.I didnt even bother.i just put it to "smart" mode.im not very confident it actually did something i just thought of mentioning it.what does that one mean? defaults in BIOS? default settings of the fan? if thats what you mean , there are no such fan settings as far as i know.actually ima restart rite now and check if there are any.

Update : Just opened up BIOS , fan settings just dont exist.
My System SpecsSystem Spec
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17 Jun 2015   #4
GokAy

Windows 7 Ultimate x64 SP1
 
 

I guess it is on the Exit menu in BIOS for some laptops.
My System SpecsSystem Spec
18 Jun 2015   #5
Foivos

Windows 7 Ultimate x64 bit
 
 

What does that mean ? I dont get it at all.
My System SpecsSystem Spec
18 Jun 2015   #6
GokAy

Windows 7 Ultimate x64 SP1
 
 

Open BIOS again and switch to the Exit menu (right most?). And find the option to "load defaults".
My System SpecsSystem Spec
18 Jun 2015   #7
Foivos

Windows 7 Ultimate x64 bit
 
 

Alright i'll do that.Ima try search for the word default options or setting or w/e.

Update : Acer , after years of its users complaining about the heat management in their products , they released a small software which seems they did not even work on it for more than 2 hours , for 3 models , one of which is mine , Aspire 5750G.
ftp://ftp2.acer-euro.com/notebook/aspire_5750G/fan/FanController_V1.0.0.3.zip
ftp://ftp2.acer-euro.com/notebook/as...ol_Utility.pdf
altho it seems even if i press "Full On" to supposedly make the fan turn on , it doesnt.even when i enter a game and the temperatures rise a lot.i tried like 2-3 games , fan didnt turn on.i dont know what to do.honestly. (now im going to restart to try to search for the default settings gokay talked about.)

2nd Update : there was only one thing with the default word inside.i did that and saved settings , apparently my boot password is gone , which means that it worked.gonna play a game and see what the fan'll do.

3rd update : the fan did not start at all , fps dropped to 15-5 , temperatures were around 85-90 and my guess on the clock speed is probably 0.8 GHz as usual.
My System SpecsSystem Spec
18 Jun 2015   #8
GokAy

Windows 7 Ultimate x64 SP1
 
 

Ok, you can see CPU Clock and fan speeds from HWInfo (either installer or portable). HWiNFO, HWiNFO32/64 - Download
My System SpecsSystem Spec
18 Jun 2015   #9
Foivos

Windows 7 Ultimate x64 bit
 
 

here's a pic from the program you gave me ..does that give you a conclusion or something? because i cant find the fan speed.


Attached Thumbnails
[Acer Aspire 5750G] Fan not turning on/off when needed.-hwinfo.png  
My System SpecsSystem Spec
18 Jun 2015   #10
GokAy

Windows 7 Ultimate x64 SP1
 
 

Sorry forgot to say either start in sensor mode or at the top menu select Monitoring - Sensor status.
My System SpecsSystem Spec
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 [Acer Aspire 5750G] Fan not turning on/off when needed.




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