Lower temperature thresholds for sensors Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern) 2019 Community Moderator Election Results Why I closed the “Why is Kali so hard” questionIs my laptop's overheating issue CPU (Dual Core i5) or GPU (Nvidia 320M) related, and can I fix it in Linux Mint?cpufreqd does not control temperature plus shows no outputChanged to Nvidia xorg driver - now I have less temperature sensors?lm-sensors crazy?Find Core temp with sensors and awkReasons for high Memory Temperature?Why is the cpu temperature different on screenfetch and xfce4-sensors and lm-sensorspwmconfig and psensor linking temperature sensors?100C CPU temperature in Ubuntu's “sensors”, but 39C in BIOS, which one is correct?sensors reports negative CPU temperature for RyzenCPU temperatures in linux: throttling or wrong reading?

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Lower temperature thresholds for sensors



Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)
2019 Community Moderator Election Results
Why I closed the “Why is Kali so hard” questionIs my laptop's overheating issue CPU (Dual Core i5) or GPU (Nvidia 320M) related, and can I fix it in Linux Mint?cpufreqd does not control temperature plus shows no outputChanged to Nvidia xorg driver - now I have less temperature sensors?lm-sensors crazy?Find Core temp with sensors and awkReasons for high Memory Temperature?Why is the cpu temperature different on screenfetch and xfce4-sensors and lm-sensorspwmconfig and psensor linking temperature sensors?100C CPU temperature in Ubuntu's “sensors”, but 39C in BIOS, which one is correct?sensors reports negative CPU temperature for RyzenCPU temperatures in linux: throttling or wrong reading?



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9















My eight month old Acer V3-571G is overheating: temperature fluctuates between 64 degC and 75 degC with only Firefox running and the exhausts are starting show some signs of melting. As soon as I launch Eclipse or Chrome, it reaches 80 degC. The main problem is that the high temperature threshold is set to 87 degC.



I installed sensors and added acpi_osi=Linux to the boot line in Grub. However, sensors-detect only detects the coretemp-isa-0000 chip, and pwmconfig does not find any PWM capable sensor modules.



Currently, I'm stuck with an overheating computer on which I cannot seem to control the fans.



I know that the fans work because they turn much faster under Windows, making the computer cooler (and more noisy).



I want to change the high temperature threshold from 87 degC to 65 or 70 degC.



Here's the output of sensors (with only Firefox running on top of KDE4 on OpenSuse):



# sensors
coretemp-isa-0000
Adapter: ISA adapter
Physical id 0: +66.0°C (high = +87.0°C, crit = +105.0°C)
Core 0: +66.0°C (high = +87.0°C, crit = +105.0°C)
Core 1: +65.0°C (high = +87.0°C, crit = +105.0°C)

pkg-temp-0-virtual-0
Adapter: Virtual device
temp1: +66.0°C

nouveau-pci-0100
Adapter: PCI adapter
temp1: +65.0°C (high = +95.0°C, hyst = +3.0°C)
(crit = +105.0°C, hyst = +5.0°C)
(emerg = +135.0°C, hyst = +5.0°C)


Creating /etc/sensors.d/foo with a temp entry seems to only change the reported temperature. I also tried setting the chip to an Intel PECI type (set temp1_type 6 (sensors -s is successful)) but that does not change the speed fans.



I also tried editing /sys/class/hwmon/hwmon0/device/temp1_max but the file is read-only even for root.



Any help or lead is appreciated! I prefer exhausting all possible resources before sending my computer back in because I need it for my day to day job, and I bought in another country than the one I'm currently in.










share|improve this question



















  • 1





    Are you sure these sensor limits are for fan speeds? I doubt that. It looks like the high and critical values for thermal protection of the system. I think there is another reason your fans aren't spinning fast enough like dust that you should examine before playing with these values. Dropping the high value down to 70C may just start processor throttling, giving you less power than you payed for. I'd check the fans, then thermal paste & heatsyncs before changing these values.

    – sbtkd85
    May 13 '14 at 15:59











  • I vacuumed all the ventilation exhausts just a week ago. And this overheating issue has been a problem ever since I bought this computer (as new) but I didn't start worrying until yesterday seeing the melting spots.

    – ChrisR
    May 13 '14 at 16:01











  • Then I'd highly suggest either taking it back to get repaired/replaced, or if you feel comfortable voiding the warranty, opening it up and checking the heatsyncs. I'd imagine there is poor contact and/or missing thermal paste if this has happened since you bought it. It should not be running at 60C+ normally.

    – sbtkd85
    May 13 '14 at 16:08






  • 1





    As mentioned in my post, I bought the computer in another country, so bringing it back would require that I take a plane, fly to the store, and get a refund or something. I'm not exactly inclined to paying a 400 euro trip for a 750 euro computer.

    – ChrisR
    May 13 '14 at 16:09











  • Isn't there a way to force all fans on all time at least? I also just saw that the nouveau [...] fan management: disabled by dmesg | grep -I fan.

    – ChrisR
    May 13 '14 at 16:10

















9















My eight month old Acer V3-571G is overheating: temperature fluctuates between 64 degC and 75 degC with only Firefox running and the exhausts are starting show some signs of melting. As soon as I launch Eclipse or Chrome, it reaches 80 degC. The main problem is that the high temperature threshold is set to 87 degC.



I installed sensors and added acpi_osi=Linux to the boot line in Grub. However, sensors-detect only detects the coretemp-isa-0000 chip, and pwmconfig does not find any PWM capable sensor modules.



Currently, I'm stuck with an overheating computer on which I cannot seem to control the fans.



I know that the fans work because they turn much faster under Windows, making the computer cooler (and more noisy).



I want to change the high temperature threshold from 87 degC to 65 or 70 degC.



Here's the output of sensors (with only Firefox running on top of KDE4 on OpenSuse):



# sensors
coretemp-isa-0000
Adapter: ISA adapter
Physical id 0: +66.0°C (high = +87.0°C, crit = +105.0°C)
Core 0: +66.0°C (high = +87.0°C, crit = +105.0°C)
Core 1: +65.0°C (high = +87.0°C, crit = +105.0°C)

pkg-temp-0-virtual-0
Adapter: Virtual device
temp1: +66.0°C

nouveau-pci-0100
Adapter: PCI adapter
temp1: +65.0°C (high = +95.0°C, hyst = +3.0°C)
(crit = +105.0°C, hyst = +5.0°C)
(emerg = +135.0°C, hyst = +5.0°C)


Creating /etc/sensors.d/foo with a temp entry seems to only change the reported temperature. I also tried setting the chip to an Intel PECI type (set temp1_type 6 (sensors -s is successful)) but that does not change the speed fans.



I also tried editing /sys/class/hwmon/hwmon0/device/temp1_max but the file is read-only even for root.



Any help or lead is appreciated! I prefer exhausting all possible resources before sending my computer back in because I need it for my day to day job, and I bought in another country than the one I'm currently in.










share|improve this question



















  • 1





    Are you sure these sensor limits are for fan speeds? I doubt that. It looks like the high and critical values for thermal protection of the system. I think there is another reason your fans aren't spinning fast enough like dust that you should examine before playing with these values. Dropping the high value down to 70C may just start processor throttling, giving you less power than you payed for. I'd check the fans, then thermal paste & heatsyncs before changing these values.

    – sbtkd85
    May 13 '14 at 15:59











  • I vacuumed all the ventilation exhausts just a week ago. And this overheating issue has been a problem ever since I bought this computer (as new) but I didn't start worrying until yesterday seeing the melting spots.

    – ChrisR
    May 13 '14 at 16:01











  • Then I'd highly suggest either taking it back to get repaired/replaced, or if you feel comfortable voiding the warranty, opening it up and checking the heatsyncs. I'd imagine there is poor contact and/or missing thermal paste if this has happened since you bought it. It should not be running at 60C+ normally.

    – sbtkd85
    May 13 '14 at 16:08






  • 1





    As mentioned in my post, I bought the computer in another country, so bringing it back would require that I take a plane, fly to the store, and get a refund or something. I'm not exactly inclined to paying a 400 euro trip for a 750 euro computer.

    – ChrisR
    May 13 '14 at 16:09











  • Isn't there a way to force all fans on all time at least? I also just saw that the nouveau [...] fan management: disabled by dmesg | grep -I fan.

    – ChrisR
    May 13 '14 at 16:10













9












9








9


1






My eight month old Acer V3-571G is overheating: temperature fluctuates between 64 degC and 75 degC with only Firefox running and the exhausts are starting show some signs of melting. As soon as I launch Eclipse or Chrome, it reaches 80 degC. The main problem is that the high temperature threshold is set to 87 degC.



I installed sensors and added acpi_osi=Linux to the boot line in Grub. However, sensors-detect only detects the coretemp-isa-0000 chip, and pwmconfig does not find any PWM capable sensor modules.



Currently, I'm stuck with an overheating computer on which I cannot seem to control the fans.



I know that the fans work because they turn much faster under Windows, making the computer cooler (and more noisy).



I want to change the high temperature threshold from 87 degC to 65 or 70 degC.



Here's the output of sensors (with only Firefox running on top of KDE4 on OpenSuse):



# sensors
coretemp-isa-0000
Adapter: ISA adapter
Physical id 0: +66.0°C (high = +87.0°C, crit = +105.0°C)
Core 0: +66.0°C (high = +87.0°C, crit = +105.0°C)
Core 1: +65.0°C (high = +87.0°C, crit = +105.0°C)

pkg-temp-0-virtual-0
Adapter: Virtual device
temp1: +66.0°C

nouveau-pci-0100
Adapter: PCI adapter
temp1: +65.0°C (high = +95.0°C, hyst = +3.0°C)
(crit = +105.0°C, hyst = +5.0°C)
(emerg = +135.0°C, hyst = +5.0°C)


Creating /etc/sensors.d/foo with a temp entry seems to only change the reported temperature. I also tried setting the chip to an Intel PECI type (set temp1_type 6 (sensors -s is successful)) but that does not change the speed fans.



I also tried editing /sys/class/hwmon/hwmon0/device/temp1_max but the file is read-only even for root.



Any help or lead is appreciated! I prefer exhausting all possible resources before sending my computer back in because I need it for my day to day job, and I bought in another country than the one I'm currently in.










share|improve this question
















My eight month old Acer V3-571G is overheating: temperature fluctuates between 64 degC and 75 degC with only Firefox running and the exhausts are starting show some signs of melting. As soon as I launch Eclipse or Chrome, it reaches 80 degC. The main problem is that the high temperature threshold is set to 87 degC.



I installed sensors and added acpi_osi=Linux to the boot line in Grub. However, sensors-detect only detects the coretemp-isa-0000 chip, and pwmconfig does not find any PWM capable sensor modules.



Currently, I'm stuck with an overheating computer on which I cannot seem to control the fans.



I know that the fans work because they turn much faster under Windows, making the computer cooler (and more noisy).



I want to change the high temperature threshold from 87 degC to 65 or 70 degC.



Here's the output of sensors (with only Firefox running on top of KDE4 on OpenSuse):



# sensors
coretemp-isa-0000
Adapter: ISA adapter
Physical id 0: +66.0°C (high = +87.0°C, crit = +105.0°C)
Core 0: +66.0°C (high = +87.0°C, crit = +105.0°C)
Core 1: +65.0°C (high = +87.0°C, crit = +105.0°C)

pkg-temp-0-virtual-0
Adapter: Virtual device
temp1: +66.0°C

nouveau-pci-0100
Adapter: PCI adapter
temp1: +65.0°C (high = +95.0°C, hyst = +3.0°C)
(crit = +105.0°C, hyst = +5.0°C)
(emerg = +135.0°C, hyst = +5.0°C)


Creating /etc/sensors.d/foo with a temp entry seems to only change the reported temperature. I also tried setting the chip to an Intel PECI type (set temp1_type 6 (sensors -s is successful)) but that does not change the speed fans.



I also tried editing /sys/class/hwmon/hwmon0/device/temp1_max but the file is read-only even for root.



Any help or lead is appreciated! I prefer exhausting all possible resources before sending my computer back in because I need it for my day to day job, and I bought in another country than the one I'm currently in.







opensuse temperature sensors acer






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited May 13 '14 at 14:48







ChrisR

















asked May 13 '14 at 14:06









ChrisRChrisR

1464




1464







  • 1





    Are you sure these sensor limits are for fan speeds? I doubt that. It looks like the high and critical values for thermal protection of the system. I think there is another reason your fans aren't spinning fast enough like dust that you should examine before playing with these values. Dropping the high value down to 70C may just start processor throttling, giving you less power than you payed for. I'd check the fans, then thermal paste & heatsyncs before changing these values.

    – sbtkd85
    May 13 '14 at 15:59











  • I vacuumed all the ventilation exhausts just a week ago. And this overheating issue has been a problem ever since I bought this computer (as new) but I didn't start worrying until yesterday seeing the melting spots.

    – ChrisR
    May 13 '14 at 16:01











  • Then I'd highly suggest either taking it back to get repaired/replaced, or if you feel comfortable voiding the warranty, opening it up and checking the heatsyncs. I'd imagine there is poor contact and/or missing thermal paste if this has happened since you bought it. It should not be running at 60C+ normally.

    – sbtkd85
    May 13 '14 at 16:08






  • 1





    As mentioned in my post, I bought the computer in another country, so bringing it back would require that I take a plane, fly to the store, and get a refund or something. I'm not exactly inclined to paying a 400 euro trip for a 750 euro computer.

    – ChrisR
    May 13 '14 at 16:09











  • Isn't there a way to force all fans on all time at least? I also just saw that the nouveau [...] fan management: disabled by dmesg | grep -I fan.

    – ChrisR
    May 13 '14 at 16:10












  • 1





    Are you sure these sensor limits are for fan speeds? I doubt that. It looks like the high and critical values for thermal protection of the system. I think there is another reason your fans aren't spinning fast enough like dust that you should examine before playing with these values. Dropping the high value down to 70C may just start processor throttling, giving you less power than you payed for. I'd check the fans, then thermal paste & heatsyncs before changing these values.

    – sbtkd85
    May 13 '14 at 15:59











  • I vacuumed all the ventilation exhausts just a week ago. And this overheating issue has been a problem ever since I bought this computer (as new) but I didn't start worrying until yesterday seeing the melting spots.

    – ChrisR
    May 13 '14 at 16:01











  • Then I'd highly suggest either taking it back to get repaired/replaced, or if you feel comfortable voiding the warranty, opening it up and checking the heatsyncs. I'd imagine there is poor contact and/or missing thermal paste if this has happened since you bought it. It should not be running at 60C+ normally.

    – sbtkd85
    May 13 '14 at 16:08






  • 1





    As mentioned in my post, I bought the computer in another country, so bringing it back would require that I take a plane, fly to the store, and get a refund or something. I'm not exactly inclined to paying a 400 euro trip for a 750 euro computer.

    – ChrisR
    May 13 '14 at 16:09











  • Isn't there a way to force all fans on all time at least? I also just saw that the nouveau [...] fan management: disabled by dmesg | grep -I fan.

    – ChrisR
    May 13 '14 at 16:10







1




1





Are you sure these sensor limits are for fan speeds? I doubt that. It looks like the high and critical values for thermal protection of the system. I think there is another reason your fans aren't spinning fast enough like dust that you should examine before playing with these values. Dropping the high value down to 70C may just start processor throttling, giving you less power than you payed for. I'd check the fans, then thermal paste & heatsyncs before changing these values.

– sbtkd85
May 13 '14 at 15:59





Are you sure these sensor limits are for fan speeds? I doubt that. It looks like the high and critical values for thermal protection of the system. I think there is another reason your fans aren't spinning fast enough like dust that you should examine before playing with these values. Dropping the high value down to 70C may just start processor throttling, giving you less power than you payed for. I'd check the fans, then thermal paste & heatsyncs before changing these values.

– sbtkd85
May 13 '14 at 15:59













I vacuumed all the ventilation exhausts just a week ago. And this overheating issue has been a problem ever since I bought this computer (as new) but I didn't start worrying until yesterday seeing the melting spots.

– ChrisR
May 13 '14 at 16:01





I vacuumed all the ventilation exhausts just a week ago. And this overheating issue has been a problem ever since I bought this computer (as new) but I didn't start worrying until yesterday seeing the melting spots.

– ChrisR
May 13 '14 at 16:01













Then I'd highly suggest either taking it back to get repaired/replaced, or if you feel comfortable voiding the warranty, opening it up and checking the heatsyncs. I'd imagine there is poor contact and/or missing thermal paste if this has happened since you bought it. It should not be running at 60C+ normally.

– sbtkd85
May 13 '14 at 16:08





Then I'd highly suggest either taking it back to get repaired/replaced, or if you feel comfortable voiding the warranty, opening it up and checking the heatsyncs. I'd imagine there is poor contact and/or missing thermal paste if this has happened since you bought it. It should not be running at 60C+ normally.

– sbtkd85
May 13 '14 at 16:08




1




1





As mentioned in my post, I bought the computer in another country, so bringing it back would require that I take a plane, fly to the store, and get a refund or something. I'm not exactly inclined to paying a 400 euro trip for a 750 euro computer.

– ChrisR
May 13 '14 at 16:09





As mentioned in my post, I bought the computer in another country, so bringing it back would require that I take a plane, fly to the store, and get a refund or something. I'm not exactly inclined to paying a 400 euro trip for a 750 euro computer.

– ChrisR
May 13 '14 at 16:09













Isn't there a way to force all fans on all time at least? I also just saw that the nouveau [...] fan management: disabled by dmesg | grep -I fan.

– ChrisR
May 13 '14 at 16:10





Isn't there a way to force all fans on all time at least? I also just saw that the nouveau [...] fan management: disabled by dmesg | grep -I fan.

– ChrisR
May 13 '14 at 16:10










3 Answers
3






active

oldest

votes


















1














I concur with ChrisR - to me, it sounds like a classic dust problem. PC's are not just PC's - they are mini hoovers of every spec of dust in the room, and you've had it for 8 years! ;-)



8 yr old laptop - I'd pop the back off, expose the CPU fan and take a soft paint brush to it with a hoover in hand. clear the dust out. - if your less hardware savvy, dont worry, There's a youtube video on how to do it :
https://www.youtube.com/watch?v=CcAMlm2_FvY
...must be there for a reason right?



View 1 : If the laptop is getting hot, AND the fan is spinning FAST - that means that the CPU isnt shifting the air efficiently - if it was a sensor problem and a high spinning fan, you'd have coolish air being pushed out...not hot, and certainly not signs of melting. : answer to this is clean the fan



View 2 : If the laptop is getting hot, AND the fan is spinning SLOW - then that would be the sensor problem, CPU paste and dust cleaning wont help this.
: answer = BIOS values may help, some BIOS have "quiet, normal, cool(loud)" settings, but ultimately, I'd expect any OS sensor values would come from what BIOS is reporting back to it - therefore your target adjustments should focus on fan speed, not just CPU temperature.



my 10c. good luck if not already sorted






share|improve this answer






























    1














    You may want to consider two other hardware elements which can lead to overheating. The first is bad hardware, such as hard drive or RAM which might be working inefficiently or have damage such that the devices are working harder than they should. You might want to run some hardware scans against them to make sure they are not working very hard to compensate for a problem.



    Also, CPU temp can have a huge impact on these sensors in my experience and you might actually be looking at a real heating problem with the CPU. Thermal compound was mentioned briefly in another part of this post and I strongly encourage you to see if the thermal paste needs replacement if other ideas fail.



    One more diagnostic test which more speaks to the impact of sensors or the CPU is to try and run a battery of tests while your laptop is in the refrigerator for a while; lower ambient tempature might tell you more about how everything responds.



    Luck to you.






    share|improve this answer






























      -1














      I've got same Acer model (V3-571G) and faced the same problem.



      I've just put my answer here:
      https://askubuntu.com/questions/343824/fans-acting-up-after-installation-on-acer-aspire-v3-571g/466513#466513



      Its a workaround (BIOS upgrade with advanced options enabled; better control of FAn speed).






      share|improve this answer

























      • Answers that are largely links are discouraged on SE (even links to other SE sites). I suggest you either describe the steps needed to solve the problem here or place this link as a comment to the question.

        – drs
        May 15 '14 at 19:12












      • I tried your method. Apart from messing up the UEFI booting process for three days (until I could get my hands on Live CD and burn it correctly), this has not achieved much. How is this supposed to provide better control of fan speed? Pwmconfig still reports no controllable fans, and settings the thermal thresholds in the BIOS does not have any kind of affect in Linux. My temperature is currently around 75 degC! I look forward to an improved answer or at least a comment explaining how I should have better fan control now. Thanks.

        – ChrisR
        May 19 '14 at 14:34











      Your Answer








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      3 Answers
      3






      active

      oldest

      votes








      3 Answers
      3






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      1














      I concur with ChrisR - to me, it sounds like a classic dust problem. PC's are not just PC's - they are mini hoovers of every spec of dust in the room, and you've had it for 8 years! ;-)



      8 yr old laptop - I'd pop the back off, expose the CPU fan and take a soft paint brush to it with a hoover in hand. clear the dust out. - if your less hardware savvy, dont worry, There's a youtube video on how to do it :
      https://www.youtube.com/watch?v=CcAMlm2_FvY
      ...must be there for a reason right?



      View 1 : If the laptop is getting hot, AND the fan is spinning FAST - that means that the CPU isnt shifting the air efficiently - if it was a sensor problem and a high spinning fan, you'd have coolish air being pushed out...not hot, and certainly not signs of melting. : answer to this is clean the fan



      View 2 : If the laptop is getting hot, AND the fan is spinning SLOW - then that would be the sensor problem, CPU paste and dust cleaning wont help this.
      : answer = BIOS values may help, some BIOS have "quiet, normal, cool(loud)" settings, but ultimately, I'd expect any OS sensor values would come from what BIOS is reporting back to it - therefore your target adjustments should focus on fan speed, not just CPU temperature.



      my 10c. good luck if not already sorted






      share|improve this answer



























        1














        I concur with ChrisR - to me, it sounds like a classic dust problem. PC's are not just PC's - they are mini hoovers of every spec of dust in the room, and you've had it for 8 years! ;-)



        8 yr old laptop - I'd pop the back off, expose the CPU fan and take a soft paint brush to it with a hoover in hand. clear the dust out. - if your less hardware savvy, dont worry, There's a youtube video on how to do it :
        https://www.youtube.com/watch?v=CcAMlm2_FvY
        ...must be there for a reason right?



        View 1 : If the laptop is getting hot, AND the fan is spinning FAST - that means that the CPU isnt shifting the air efficiently - if it was a sensor problem and a high spinning fan, you'd have coolish air being pushed out...not hot, and certainly not signs of melting. : answer to this is clean the fan



        View 2 : If the laptop is getting hot, AND the fan is spinning SLOW - then that would be the sensor problem, CPU paste and dust cleaning wont help this.
        : answer = BIOS values may help, some BIOS have "quiet, normal, cool(loud)" settings, but ultimately, I'd expect any OS sensor values would come from what BIOS is reporting back to it - therefore your target adjustments should focus on fan speed, not just CPU temperature.



        my 10c. good luck if not already sorted






        share|improve this answer

























          1












          1








          1







          I concur with ChrisR - to me, it sounds like a classic dust problem. PC's are not just PC's - they are mini hoovers of every spec of dust in the room, and you've had it for 8 years! ;-)



          8 yr old laptop - I'd pop the back off, expose the CPU fan and take a soft paint brush to it with a hoover in hand. clear the dust out. - if your less hardware savvy, dont worry, There's a youtube video on how to do it :
          https://www.youtube.com/watch?v=CcAMlm2_FvY
          ...must be there for a reason right?



          View 1 : If the laptop is getting hot, AND the fan is spinning FAST - that means that the CPU isnt shifting the air efficiently - if it was a sensor problem and a high spinning fan, you'd have coolish air being pushed out...not hot, and certainly not signs of melting. : answer to this is clean the fan



          View 2 : If the laptop is getting hot, AND the fan is spinning SLOW - then that would be the sensor problem, CPU paste and dust cleaning wont help this.
          : answer = BIOS values may help, some BIOS have "quiet, normal, cool(loud)" settings, but ultimately, I'd expect any OS sensor values would come from what BIOS is reporting back to it - therefore your target adjustments should focus on fan speed, not just CPU temperature.



          my 10c. good luck if not already sorted






          share|improve this answer













          I concur with ChrisR - to me, it sounds like a classic dust problem. PC's are not just PC's - they are mini hoovers of every spec of dust in the room, and you've had it for 8 years! ;-)



          8 yr old laptop - I'd pop the back off, expose the CPU fan and take a soft paint brush to it with a hoover in hand. clear the dust out. - if your less hardware savvy, dont worry, There's a youtube video on how to do it :
          https://www.youtube.com/watch?v=CcAMlm2_FvY
          ...must be there for a reason right?



          View 1 : If the laptop is getting hot, AND the fan is spinning FAST - that means that the CPU isnt shifting the air efficiently - if it was a sensor problem and a high spinning fan, you'd have coolish air being pushed out...not hot, and certainly not signs of melting. : answer to this is clean the fan



          View 2 : If the laptop is getting hot, AND the fan is spinning SLOW - then that would be the sensor problem, CPU paste and dust cleaning wont help this.
          : answer = BIOS values may help, some BIOS have "quiet, normal, cool(loud)" settings, but ultimately, I'd expect any OS sensor values would come from what BIOS is reporting back to it - therefore your target adjustments should focus on fan speed, not just CPU temperature.



          my 10c. good luck if not already sorted







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Apr 2 '16 at 11:33









          Mr_KciMr_Kci

          312




          312























              1














              You may want to consider two other hardware elements which can lead to overheating. The first is bad hardware, such as hard drive or RAM which might be working inefficiently or have damage such that the devices are working harder than they should. You might want to run some hardware scans against them to make sure they are not working very hard to compensate for a problem.



              Also, CPU temp can have a huge impact on these sensors in my experience and you might actually be looking at a real heating problem with the CPU. Thermal compound was mentioned briefly in another part of this post and I strongly encourage you to see if the thermal paste needs replacement if other ideas fail.



              One more diagnostic test which more speaks to the impact of sensors or the CPU is to try and run a battery of tests while your laptop is in the refrigerator for a while; lower ambient tempature might tell you more about how everything responds.



              Luck to you.






              share|improve this answer



























                1














                You may want to consider two other hardware elements which can lead to overheating. The first is bad hardware, such as hard drive or RAM which might be working inefficiently or have damage such that the devices are working harder than they should. You might want to run some hardware scans against them to make sure they are not working very hard to compensate for a problem.



                Also, CPU temp can have a huge impact on these sensors in my experience and you might actually be looking at a real heating problem with the CPU. Thermal compound was mentioned briefly in another part of this post and I strongly encourage you to see if the thermal paste needs replacement if other ideas fail.



                One more diagnostic test which more speaks to the impact of sensors or the CPU is to try and run a battery of tests while your laptop is in the refrigerator for a while; lower ambient tempature might tell you more about how everything responds.



                Luck to you.






                share|improve this answer

























                  1












                  1








                  1







                  You may want to consider two other hardware elements which can lead to overheating. The first is bad hardware, such as hard drive or RAM which might be working inefficiently or have damage such that the devices are working harder than they should. You might want to run some hardware scans against them to make sure they are not working very hard to compensate for a problem.



                  Also, CPU temp can have a huge impact on these sensors in my experience and you might actually be looking at a real heating problem with the CPU. Thermal compound was mentioned briefly in another part of this post and I strongly encourage you to see if the thermal paste needs replacement if other ideas fail.



                  One more diagnostic test which more speaks to the impact of sensors or the CPU is to try and run a battery of tests while your laptop is in the refrigerator for a while; lower ambient tempature might tell you more about how everything responds.



                  Luck to you.






                  share|improve this answer













                  You may want to consider two other hardware elements which can lead to overheating. The first is bad hardware, such as hard drive or RAM which might be working inefficiently or have damage such that the devices are working harder than they should. You might want to run some hardware scans against them to make sure they are not working very hard to compensate for a problem.



                  Also, CPU temp can have a huge impact on these sensors in my experience and you might actually be looking at a real heating problem with the CPU. Thermal compound was mentioned briefly in another part of this post and I strongly encourage you to see if the thermal paste needs replacement if other ideas fail.



                  One more diagnostic test which more speaks to the impact of sensors or the CPU is to try and run a battery of tests while your laptop is in the refrigerator for a while; lower ambient tempature might tell you more about how everything responds.



                  Luck to you.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered May 12 '16 at 22:44









                  Dana MarbleDana Marble

                  49642




                  49642





















                      -1














                      I've got same Acer model (V3-571G) and faced the same problem.



                      I've just put my answer here:
                      https://askubuntu.com/questions/343824/fans-acting-up-after-installation-on-acer-aspire-v3-571g/466513#466513



                      Its a workaround (BIOS upgrade with advanced options enabled; better control of FAn speed).






                      share|improve this answer

























                      • Answers that are largely links are discouraged on SE (even links to other SE sites). I suggest you either describe the steps needed to solve the problem here or place this link as a comment to the question.

                        – drs
                        May 15 '14 at 19:12












                      • I tried your method. Apart from messing up the UEFI booting process for three days (until I could get my hands on Live CD and burn it correctly), this has not achieved much. How is this supposed to provide better control of fan speed? Pwmconfig still reports no controllable fans, and settings the thermal thresholds in the BIOS does not have any kind of affect in Linux. My temperature is currently around 75 degC! I look forward to an improved answer or at least a comment explaining how I should have better fan control now. Thanks.

                        – ChrisR
                        May 19 '14 at 14:34















                      -1














                      I've got same Acer model (V3-571G) and faced the same problem.



                      I've just put my answer here:
                      https://askubuntu.com/questions/343824/fans-acting-up-after-installation-on-acer-aspire-v3-571g/466513#466513



                      Its a workaround (BIOS upgrade with advanced options enabled; better control of FAn speed).






                      share|improve this answer

























                      • Answers that are largely links are discouraged on SE (even links to other SE sites). I suggest you either describe the steps needed to solve the problem here or place this link as a comment to the question.

                        – drs
                        May 15 '14 at 19:12












                      • I tried your method. Apart from messing up the UEFI booting process for three days (until I could get my hands on Live CD and burn it correctly), this has not achieved much. How is this supposed to provide better control of fan speed? Pwmconfig still reports no controllable fans, and settings the thermal thresholds in the BIOS does not have any kind of affect in Linux. My temperature is currently around 75 degC! I look forward to an improved answer or at least a comment explaining how I should have better fan control now. Thanks.

                        – ChrisR
                        May 19 '14 at 14:34













                      -1












                      -1








                      -1







                      I've got same Acer model (V3-571G) and faced the same problem.



                      I've just put my answer here:
                      https://askubuntu.com/questions/343824/fans-acting-up-after-installation-on-acer-aspire-v3-571g/466513#466513



                      Its a workaround (BIOS upgrade with advanced options enabled; better control of FAn speed).






                      share|improve this answer















                      I've got same Acer model (V3-571G) and faced the same problem.



                      I've just put my answer here:
                      https://askubuntu.com/questions/343824/fans-acting-up-after-installation-on-acer-aspire-v3-571g/466513#466513



                      Its a workaround (BIOS upgrade with advanced options enabled; better control of FAn speed).







                      share|improve this answer














                      share|improve this answer



                      share|improve this answer








                      edited 11 hours ago









                      Rui F Ribeiro

                      42.1k1484142




                      42.1k1484142










                      answered May 15 '14 at 18:47









                      Rostislav StribrnyRostislav Stribrny

                      992




                      992












                      • Answers that are largely links are discouraged on SE (even links to other SE sites). I suggest you either describe the steps needed to solve the problem here or place this link as a comment to the question.

                        – drs
                        May 15 '14 at 19:12












                      • I tried your method. Apart from messing up the UEFI booting process for three days (until I could get my hands on Live CD and burn it correctly), this has not achieved much. How is this supposed to provide better control of fan speed? Pwmconfig still reports no controllable fans, and settings the thermal thresholds in the BIOS does not have any kind of affect in Linux. My temperature is currently around 75 degC! I look forward to an improved answer or at least a comment explaining how I should have better fan control now. Thanks.

                        – ChrisR
                        May 19 '14 at 14:34

















                      • Answers that are largely links are discouraged on SE (even links to other SE sites). I suggest you either describe the steps needed to solve the problem here or place this link as a comment to the question.

                        – drs
                        May 15 '14 at 19:12












                      • I tried your method. Apart from messing up the UEFI booting process for three days (until I could get my hands on Live CD and burn it correctly), this has not achieved much. How is this supposed to provide better control of fan speed? Pwmconfig still reports no controllable fans, and settings the thermal thresholds in the BIOS does not have any kind of affect in Linux. My temperature is currently around 75 degC! I look forward to an improved answer or at least a comment explaining how I should have better fan control now. Thanks.

                        – ChrisR
                        May 19 '14 at 14:34
















                      Answers that are largely links are discouraged on SE (even links to other SE sites). I suggest you either describe the steps needed to solve the problem here or place this link as a comment to the question.

                      – drs
                      May 15 '14 at 19:12






                      Answers that are largely links are discouraged on SE (even links to other SE sites). I suggest you either describe the steps needed to solve the problem here or place this link as a comment to the question.

                      – drs
                      May 15 '14 at 19:12














                      I tried your method. Apart from messing up the UEFI booting process for three days (until I could get my hands on Live CD and burn it correctly), this has not achieved much. How is this supposed to provide better control of fan speed? Pwmconfig still reports no controllable fans, and settings the thermal thresholds in the BIOS does not have any kind of affect in Linux. My temperature is currently around 75 degC! I look forward to an improved answer or at least a comment explaining how I should have better fan control now. Thanks.

                      – ChrisR
                      May 19 '14 at 14:34





                      I tried your method. Apart from messing up the UEFI booting process for three days (until I could get my hands on Live CD and burn it correctly), this has not achieved much. How is this supposed to provide better control of fan speed? Pwmconfig still reports no controllable fans, and settings the thermal thresholds in the BIOS does not have any kind of affect in Linux. My temperature is currently around 75 degC! I look forward to an improved answer or at least a comment explaining how I should have better fan control now. Thanks.

                      – ChrisR
                      May 19 '14 at 14:34

















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