[BIOS v1.26 BUG] GPU Fan Randomly Spins Loud on Acer Nitro ANV15-51 — Even When Idle

Manas213754
Manas213754 Member Posts: 5 New User

Hello Acer Team and Community,

I'm facing a persistent issue after updating my Acer Nitro ANV15-51 to BIOS version v1.26 (dated March 21, 2025).

While the update was installed months ago, the issue only began recently (late June). My GPU fan now randomly spins at full speed even when the laptop is idle or using integrated graphics. It starts slowly and then ramps up for no clear reason.

Steps I have already tried:

✔ EC reset

✔ Windows full reset

✔ iGPU mode

✔ Predator Sense reinstall

✔ BIOS reflash (same version)

✔ Clean NVIDIA driver install

Still, the fan speed remains uncontrollable. In Predator Sense, it shows “Auto” mode, but doesn’t behave normally. No Whisper Mode options are available either.

Other users are now reporting similar issues, and even Acer service center staff acknowledged it might be a firmware/EC issue. But BIOS downgrade is not allowed.

It seems this issue is triggered by a combination of:

- BIOS v1.26

- Recent Windows/NVIDIA updates

- EC receiving improper fan signal

🛠️ Please escalate this to the firmware or BIOS engineering team.