Acer Nitro ANV15-51-GPU fan running at max speed, making huge noise

Laptop: Acer Nitro ANV15-51

Didn't turn off the laptop yesterday night only to notice the laptop making huge noise. Though I have previously let it run overnight, even continuously for 3 days, but there was never an issue. Though in my previous posts, I have encountered a few problems with Nitrosense, but all of them had been rectified.

I have tried updating all drivers, windows and bios after this issue, nothing fixed, drained battery, opened up and cleaned the laptop.
Here are the details:

BIOS Version: INSYDE Corp. V1.31 (dated 27/06/2025) (updated after issue)
Laptop Age: 2 years
Troubleshooting Steps Taken:
Updated Windows and all drivers
Reset BIOS to default settings
Reinstalled NitroSense and NVIDIA GPU drivers
Attempted EC reset
Tried third-party fan control software — none could detect or control the GPU fan
The fan runs at full speed even in BIOS, and GPU temperatures are normal (~40–50°C)

I have full control over the CPU fan through Nitrosense, but GPU fan is not in control.

[Edited the thread to add model name to the title]
[Edited the thread to add issue detail]

Accepted answers

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rocrafter

So, I have turned on the laptop after some time, the launch and first 5 mins, the fans were slow and silent, until I have opened firefox and the fans go full speed and stay that way forever,

Edit: tried restarting, shutting down and launching again, honestly I have a bad headache from the noise its making from morning. Please help me, I only just wanted to do an assignment.

Axxo

To address your Acer Nitro ANV15-51's loud GPU fan, first clean the vents and fans using compressed air to remove dust. If the problem persists, update the BIOS to the latest version from the Acer support site and perform a hard reset by holding the power button for 15 seconds after shutting down. If these steps fail, it indicates a potential hardware issue, and you should contact Acer support.

Before trying any fixes:
Ensure the laptop is off: and disconnected from the power adapter and any external peripherals.
Step 1: Clean the Fans and Vents
Dust buildup: is a common cause of loud fans.
Use compressed air: to blow dust out of the laptop's intake and exhaust vents. Hold the fan blades with a toothpick to prevent them from spinning too fast while cleaning.
Step 2: Update BIOS and Perform a Hard Reset
Update your BIOS
to the latest version available from the Acer support website for your specific laptop model, as this can include fan control improvements.
Perform a hard reset
to reset the Embedded Controller (EC) chip, which may be causing the fan issue. Shut down the laptop, then press and hold the power button for 15 seconds to completely discharge it.

Step 3: Check Power Settings
Adjust Windows power settings: to "Balanced" and the in-NitroSense "Power & Battery" settings to "Best Power Efficiency" or "Balanced".
Consider disabling Turbo Boost: in NitroSense, as it can generate more heat and increase fan speed.
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Diya1811

First try rolling back to an earlier BIOS version from Acer’s official site, as newer updates can sometimes cause fan control issues. Next, perform a clean EC reset by holding the power button for 30 seconds with the laptop fully shut down and unplugged—this helps reset hardware-level controls. If the issue persists, and your laptop is still under warranty, visit an Acer Service Center for a professional hardware inspection.

Click on "Yes" if it answers your question or Click on "Like" if you find my answer useful

rocrafter

@Axxo I am thankful for your help and I am sure you have read my post and the details I have clearly outlined of the steps I have tried to fix this issue.

I have already completed all of your given steps and outlined these in my post, and if you still have any more helpful fixes after these, provide them

rocrafter

@Diya1811 I am yet again thankful for your response, but please do read my post completely,

I have encountered this issue before I have even updated anything, I am a regular person who does not have access to unlimited supply of high speed internet, so I do not updated frequently,

I have clearly mentioned in my post above, that I have updated everything after the issue started to try to fix it, as it is the most logical approach ever, and I have yet again mentioned that I have already attempted an EC reset. Please be more helpful by reading the post.

No I do not have a registered Acer service center near me, and the last time I was in my hometown, I went to the service center and he tried to rip me off instead of actually fixing a small issue. So, I do not trust my valuable time and resources to such people and rather fix it myself.

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