Request for Urgent BIOS Update to Fix GPU Fan Issue on Nitro ANV15-51 (After v1.26)

Hello Acer Support Team,

I'm writing to request urgent attention from the BIOS/firmware development team regarding a persistent issue on the Acer Nitro ANV15-51 series. After updating to BIOS version 1.26, many users (including myself) have been experiencing erratic GPU fan behavior — including extremely high fan speeds even at low system loads, and sometimes even within the BIOS screen itself.

This issue has been widely reported across Reddit, the Acer community forum, and other platforms. While some users mentioned a possible BIOS v1.31, it appears that this version is either unreleased or has not resolved the problem. Fans are still behaving abnormally even with this version.

Request:

Please escalate this issue to your backend/firmware development team and kindly provide:

1. An official rollback tool or BIOS downgrade utility to version 1.25 or earlier.

2. A new BIOS update that resolves this fan control bug and restores normal thermal and fan performance.

This problem is significantly affecting daily usage and thermals, and users are losing confidence in the system's stability. We hope Acer takes this matter seriously and provides a timely resolution.

Thank you,

Manas Mitra

(Affected Nitro ANV15-51 user)

Accepted answers

All comments

Puraw

https://community.acer.com/en/discussion/727397/request-for-urgent-bios-update-to-fix-gpu-fan-issue-on-nitro-anv15-51-after-v1-26

Hi, have a look at this thread: PHN18-72 Maximum Processor State in Power Plan not changing CPU frequency — Acer Community also use Balanced Power Plan and Best Power efficiency mode in Power & battery settings.

Manas213754

https://community.acer.com/en/discussion/comment/1349358#Comment_1349358

Thanks for the responses!

I’d like to add that even after updating to BIOS version 1.31, the fan behavior issue still persists. As mentioned by another user here in this comment, the EC firmware changes introduced in v1.26 seem to be the root of the issue. The fans are spinning up at high RPMs even during low GPU usage, and NitroSense's "Auto" mode does not regulate them properly.