Dharma: which OS are you running? The kernel downgrade worked perfectly for me but I am running RaspiOS… Do you get the correct kernel version of 6.6.44?
I’m running a P5 with Linux raspberrypi 6.6.44-v8-16k+ #1789 SMP PREEMPT Mon Aug 5 15:24:18 BST 2024 aarch64 GNU/Linux and also no secondary fans or LED read out on the front panel …In addition trying to access the URL raspberrypi.local or raspberrypi.lan display a page not found. Any thoughts? Thank you!
Have you install Pironman5 software?
https://docs.sunfounder.com/projects/pironman5/en/latest/set_up/set_up_rpi_os.html
And do you mean you can’t access to dashboard? Website is your IP address with :34001
manrabbithouse:
Your OLED screen is not working, and you cannot access the PC dashboard. It is possible that you did not install our pironman5 software correctly, or there was an error during installation that caused the process to terminate.Is the RGB light on your IO expansion board working?
Please follow our tutorial to install the pironman5 software:Set Up on Raspberry Pi/Ubuntu/Kali/Homebridge OS — SunFounder Pironman 5 documentation
If you installed the pironman5 software correctly but the OLED screen still does not display anything, please verify the following:
1.What system are you currently using?
2.Use the following command to check if the OLED’s I2C address 0x3C is recognized:
sudo i2cdetect -y 1
3.If the I2C address 0x3C is detected, run the command to restart the pironman5 service:
sudo systemctl restart pironman5.service
4.If the I2C address is not detected, please execute the command:
sudo nano /boot/firmware/config.txt
Add the following line at the end of the file:
dtparam=i2c_arm=on
Press Ctrl + X, then Y to save and exit.
Restart pironman5 and check the results.
Dharma:
We recommend that you provide a video of the fan noise, as well as a recording of your process controlling the RGB fans after downgrading the kernel. This will give us a clearer understanding and help us analyze and solve the issue.
If the video file is large, please upload it to OneDrive and share the link with us, granting us access.
As requested, I have attached a link to the video verifying the kernel version, the fan set to quiet which according to your guys docs it’s should only go on after a certain point (70c, clearly I’m nowhere near that) and still doesn’t work fans running full speed.
https://1drv.ms/v/s!AiXYEUSLNYEFjhZdQOF42S9IIvDa
Thank you for your help great customer service so far 
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Please try executing:
ln -s /dev/gpiochip0 /dev/gpiochip4
Then control the RGB fan and see if it works properly.
From the video you provided, it appears that the D1 LED on your IO expansion board is flickering inconsistently, and the voltage seems unstable, possibly indicating insufficient power.
What are the specifications of the power supply you are using?
It is recommended to use the official Raspberry Pi 27W power supply.
Says file already exists.
It is the official RaspberryPi powersupply that is powering the pironman5.
What you’re seeing is not D1 but the D7 diode
Now, go to the PC dashboard to control the RGB fan and check the results.
If it still doesn’t work, I recommend reinstalling the system and then installing the pironman5 software.
Make sure not to update the kernel:
Please do not execute sudo rpi-update or sudo apt upgrade.
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Just a point to note, since back grading my kernel to 6.6.44 to fix my always-on RGB fans problem, executing the latter of those commands hasn’t affected the kernel version since…
(see screenshot)
i had to create a new account just to be able to reply (new users limited to 3 replies).
No luck with this
Before going trough the hassle of reinstalling the image to the drive I decided to stop the pironman5 service and reinstall the module restarted the raspberrypi and this did the trick…
fans are now controllable trough the dashboard
Thank you so much guys !
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I reinstalled latest eeprom 6.6.51-v8-16k+ and everything work fine.
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Ditto for me too! Weird… (not you 
)
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I’ve updated as well and all is good 
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The official should fix the kernel that affected the GPIO.
Something else has now cropped up after the update that I received today for RasPiOS. I tried to access the Pironman Dashboard in the normal way (on Port 34001) and got this…
??
It turns out that the fix was to backgrade the rpi-eprom again and then re-update! (to get it all working properly again)
I wish someone at Sunfounder would get this sorted once and for all!!
CPN200: We followed your instructions for reproduction, and the PC dashboard is accessible without issues.
We upgraded the kernel version to 6.6.51-v8-16k+ and installed the pironman5 software. After rebooting the pironman5, the RGB fan can be controlled normally, and the PC dashboard is still accessible.
Please check if the network is functioning properly. The network configured on PI5 should be within the same local area network as your PC.
@SunFounder_Moderator I’m not sure you even understood my original post? There were no “instructions”. Just an indication that the disconnect on port: 34001 seemed to be caused by the latest update to the OS. There was absolutely nothing wrong with my Pironman 5’s network connection at the time since everything else network wise was working perfectly.
When a “site can’t be reached” page comes up like that with an “ERR_CONNECTION_REFUSED” on it, that is an actual error as opposed to a lack of the network. The network was functioning correctly, the Pironman 5 software was not!
As I said, when I noticed that it came back on (after the update and a reboot) with the RGB fans latched permanently on, I repeated what I did 6 days ago and that fixed it.
What should be REALLY fixed is your software!!
It’s all very well for you saying “Please do not execute sudo rpi-update or sudo apt upgrade.” but I regularly perform:
sudo apt update && sudo apt full-upgrade -y --allow-downgrades
to keep my system’s OS up to date. I shouldn’t have to stop doing that just because there is a glitch in your software!
BUHAHAHA I was thinking same thing haha this AINT an HVAC forum haha.
1.Did you update the system kernel first before installing our Pironman5 software, or did you install the Pironman5 software before updating the kernel?
Please provide us with the specific steps you followed.
Both methods have been validated, and we confirm that the PC dashboard can be accessed normally, and the RGB fan status can be controlled correctly.
2.Additionally, please pack all your log files and share them with us to facilitate our analysis. You can find the logs in the /var/log/pironman5 directory. You can use the following command : cd /var/log/pironman5
Once you’ve packaged the log files, please send them over.