[EQ12] CPU fan is not hitting max speed under load

gsky

I read this guide to setup automatic fan operation on the EQ12.  When my CPU is under a sustained high load, the core temps reach 80C but the CPU fan is only running around 3,800 RPM.  Full speed should be 5,500.  Why?

1. 
   
2. <div>CPU Smart Fan Mode         = Automatic Mode
   
3. Fan off temp linut        = 35
   
4. Fan start temp limit      = 40
   
5. Fan full speed temp limit = 75
   
6. Fan start PWM             = 80
   
7. PWM Slope setting         = 2 PWM</div>

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gsky

My BIOS is N95V104 03/17/2023.  I tried resetting the BIOS to defaults, then modifying just the fan section but the CPU fun will still not hit max speeds. As I test, I set the fan mode to manual and was able to get the fan to run at full speed, so I know it can hit 5,500 RPM.  Linux kernel is 6.6.8.

1. $ sensors
   
2. it8613-isa-0a30
   
3. Adapter: ISA adapter
   
4. in0:         880.00 mV (min =  +0.00 V, max =  +2.81 V)
   
5. in1:           1.16 V  (min =  +0.00 V, max =  +2.81 V)
   
6. in2:           1.97 V  (min =  +0.00 V, max =  +2.81 V)
   
7. in4:           1.95 V  (min =  +0.00 V, max =  +2.81 V)
   
8. in5:           1.95 V  (min =  +0.00 V, max =  +2.81 V)
   
9. 3VSB:          4.18 V  (min =  +0.00 V, max =  +5.61 V)
   
10. +3.3V:         3.23 V  
    
11. fan2:        3813 RPM  (min =    0 RPM)
    
12. fan3:        1201 RPM  (min =    0 RPM)
    
13. temp1:        +73.0°C  (low  = -128.0°C, high = +127.0°C)  sensor = thermistor
    
14. temp2:        +54.0°C  (low  = -128.0°C, high = +127.0°C)  sensor = thermistor
    
15. temp3:        +54.0°C  (low  = -128.0°C, high = +127.0°C)
    
16. 
    
17. coretemp-isa-0000
    
18. Adapter: ISA adapter
    
19. Package id 0:  +79.0°C  (high = +105.0°C, crit = +105.0°C)
    
20. Core 0:        +79.0°C  (high = +105.0°C, crit = +105.0°C)
    
21. Core 1:        +79.0°C  (high = +105.0°C, crit = +105.0°C)
    
22. Core 2:        +79.0°C  (high = +105.0°C, crit = +105.0°C)
    
23. Core 3:        +79.0°C  (high = +105.0°C, crit = +105.0°C)
    

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tuiguang16

Could you please send us a picture about bios version on the bios main page?
This is the tutorial: https://mega.nz/#F!yuISGa4I!s1bQQajKwnsEdzjqq4nopQ
Then we could check if there is a updated bios file.  

Looking forward to your reply so that we can help you better.

gsky

Is this the info you need?

1. % dmesg | grep 'BIOS N'
   
2. [  +0.000000] DMI: AZW EQ/EQ, BIOS N95V104 03/17/2023

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tuiguang16

Hello, your BIOS is the latest BIOS, you do not have to update it.

And your machine need to change a new fan.
Please email us -----support-pc@bee-link.com
Also please send us a photo of SN on the bottom of your machine and a photo of your purchase record, thanks.
And please tell us your issue again, so that we can help you change a new fan.

Looking forward to your email.

gsky

When you said "And your machine need to change a new fan."  What did you mean?

tuiguang16

We mean it seems that there is somthing wrong with your fan, and your machine need to change a new fan to solve this issue.
If your machine is under warranty, we can send you a new fan for free, otherwise, you need to purchase a new fan from us.

Looking forward to your email with these information we required.
Have a nice day!

gsky

OK.  I think there is a misunderstanding.  The reason the fan does not get up to speed because the sensors on the board that controls it, is not the same sensor that the coretemp reads.  See my post above.

sensors
it8613-isa-0a30
Adapter: ISA adapter
...
temp1:        +73.0°C  (low  = -128.0°C, high = +127.0°C)  sensor = thermistor
temp2:        +54.0°C  (low  = -128.0°C, high = +127.0°C)  sensor = thermistor
temp3:        +54.0°C  (low  = -128.0°C, high = +127.0°C)

coretemp-isa-0000
Adapter: ISA adapter
Package id 0:  +79.0°C  (high = +105.0°C, crit = +105.0°C)
Core 0:        +79.0°C  (high = +105.0°C, crit = +105.0°C)
Core 1:        +79.0°C  (high = +105.0°C, crit = +105.0°C)
Core 2:        +79.0°C  (high = +105.0°C, crit = +105.0°C)
Core 3:        +79.0°C  (high = +105.0°C, crit = +105.0°C)

I believe that "ISA adapter's temp 1" is what you guys are using for temp sensors, not "Package ID" nor "Core 0-3".  It always reads lower than the real core temp.

tuiguang16

Hello, please email us, so that we can send you the new BIOS to have a test.
Because wrong BIOS will damage your machine, so the best way is that you email us.

gsky

What email would you like me to use?  When you said "new BIOS" do you mean that you have a new one that links to the CPU fan to the coretemp not the current sensor?