Is it possible to control fans in pfense ?



  • The temperature on the computer is about 54 degrees
    That's high
    I added a fan in the front part but it did not matter
    I noticed that the rear fan stops working from time to time
    Is there a way to make him work permanently ?
    I did not find bios option to adjust the fans

    On the previous computer which is older it was fixed between 35 and 40 degrees



  • Are you sure it's not just a broken fan? Other options are: BIOS-controlled fan, self-controlled fan (built in thermistor) or fan controller.


  • Netgate Administrator

    What CPU is it? How are you measuring that temperature?

    54C does not seem particularly high for many CPUs.

    Steve



  • Are you sure it's not just a broken fan?

    it is new fan I plugged it into an external power supply
    And it works properly

    Other options are: BIOS-controlled fan

    There is no way to change anything related to fans in the bios
    There's a screen that shows what the temperature is and how fast the fans are
    That's it

    self-controlled fan (built in thermistor) or fan controller

    I try to avoid it because the chassis of the computer sits in the most inaccessible location

    What CPU is it?

    Intel(R) Pentium(R) Dual CPU E2160 @ 1.80GHz
    2 CPUs: 1 package(s) x 2 core(s)
    AES-NI CPU Crypto: No 
    

    How are you measuring that temperature?

    with Thermal Sensors on Dashboard
    In the option of sensors I chose

    intel core* cpu on-die thermal sensor
    

    54C does not seem particularly high for many CPUs.

    The previous computer had less memory and a weaker processor
    And he had more packages
    Reached a maximum temperature of 42 degrees
    And in normal condition to 35 degrees
    And it is in exactly the same location

    I guess if the rear fan works without breaks
    The temperature will drop to a lower level
    And that would be enough
    That's my line of thought

    ![Screenshot from 2018-01-10 16-23-47.png](/public/imported_attachments/1/Screenshot from 2018-01-10 16-23-47.png)
    ![Screenshot from 2018-01-10 16-23-47.png_thumb](/public/imported_attachments/1/Screenshot from 2018-01-10 16-23-47.png_thumb)


  • Netgate Administrator

    Hmm, it does seem hotter than I might have expected for that CPU but not to a dangerous level.

    The only temp limits I can find for that cpu is Tcase which is at the heat spreader which is always going to be cooler than the core. Seems to be 73C. So 54C at the core is well below that.

    It might be possible to set the fan control values if it's a 3 or 4 wire controlled fan but it would probably require some coding and poking about.

    Steve


  • Banned

    @firefox:

    Is there a way to make him work permanently ?

    Get an adapter like this: https://www.amazon.com/ExtremeMod-Computer-Connector-Y-Splitter-Adapter/dp/B00DU8ZZ0O and connect it directly to the PSU. If the fan still stops at random it's either broken or has it's own temp control, in that case replace it.



  • It might be possible to set the fan control values if it's a 3 or 4 wire controlled fan but it would probably require some coding and poking about.

    it is 3 wire fan

    I will first try to connect it directly to power supply as Grison suggested
    First the simpler solution

    If that does not work I will proceed from there

    Thanks for the help



  • @firefox:

    The temperature on the computer is about 54 degrees
    That's high
    I added a fan in the front part but it did not matter
    I noticed that the rear fan stops working from time to time
    Is there a way to make him work permanently ?
    I did not find bios option to adjust the fans

    On the previous computer which is older it was fixed between 35 and 40 degrees

    Is the fan plugged into the  power/control area for the CPU fan?



  • Is the fan plugged into the  power/control area for the CPU fan?

    yes
    cpu fan has 4 wire



  • Something strange I found
    I opened the case to connect the rear fan directly to a power supply
    So now he works very fast and makes a lot of noise
    I tried to connect the rear fan to another connection on the motherboard of a fan
    And there it works exactly as if I connected it directly to power supply

    I connected the front fan to the rear fan connector or power supply
    In both cases the fan operates but not as fast as the rear fan

    I left the rear fan connected to the front fan connector
    And the front fan is directly connected to the power supply

    The temperature is now about 45 degrees

    But there is a lot of noise from the computer chassis
    Because of the rear fan that works at maximum speed

    By the way these are simple 92 mm fans 3 wires



  • @firefox:

    Is the fan plugged into the  power/control area for the CPU fan?

    yes
    cpu fan has 4 wire

    What I meant was there are other fan ports that are not the CPU fan port.  Is it plugged into the CPU one or another one?



  • there are 3 fan port
    1 cpu
    2 system fan

    The CPU fan is connected to the CPU port
    rear fan is connected to a system port 1
    Front fan connected to system port 2

    There's another port I do not recognize
    The connection is the same as that of the fans

    I plugged in a fan but it does not work

    I added a picture of the motherboard if that would help (lenovo rev vo.3)
    In a red circle, a 4-pin plug (cpu fan is connected here)
    In the white circles a 3-pin plug (system fans is connected here)
    in the brown circle the plug I do not know what it is



  • Netgate Administrator

    Does the BIOS temperature reading agree with that coretemp is showing? It can report incorrectly if it doesn't have the correct TJmax value for that CPU.

    Steve



  • Does the BIOS temperature reading agree with that coretemp is showing?

    yes
    This page of pc Health in the bios

    ![Screenshot from 2018-01-11 19-38-55.png](/public/imported_attachments/1/Screenshot from 2018-01-11 19-38-55.png)
    ![Screenshot from 2018-01-11 19-38-55.png_thumb](/public/imported_attachments/1/Screenshot from 2018-01-11 19-38-55.png_thumb)



  • This is probably because it's a lenovo-specific motherboard and its firmware is specifically designed for the case this originally came with. As soon as you deviate from what the OEM intended to do with it and if the firmware is limited, this type of annoying issue becomes rather common.



  • I understand
    Thanks for the help
    I'll try to get another motherboard



  • @firefox:

    I guess if the rear fan works without breaks
    The temperature will drop to a lower level

    Dude, the pic shows the cpu is sitting at only 35c, the ZONE is the one getting 55.  What is this ZONE? Not the cpu I don't think.  Does this temperature stay static? come up like that the minute you boot, then it's a bogus sensor to be ignored, otherwise some part of the Mobo, not cpu, is getting the 55c.  Own an IR thermometer? real fun and useful.


Log in to reply