Yes, the bios or firmware can update itself automatically.
Yes, the bios or firmware can update itself automatically.
I powered off my PC several hours ago and restarted it. When I turned it back on, the motherboard showed a notification about updating "Hydranode firmware." This seems unusual given my setup. - My CSM is active since I don’t use Secure Boot or UEFI; I’m still running the MBR. - There’s no ASUS software installed except the official drivers. - Windows Update and driver updates via registry or installation settings are disabled. So why does this happen? The message appeared to be a glitch. I checked online and found similar reports from other Asus users, but it wasn’t Hydranode—it was related to LED indicators or BIOS changes.
hydranode isn't related to the BIOS; it's a custom solution from ASUS for managing their own fans and coolers. The update process might override standard device settings, which could be why it works so well. This scenario could also apply to other devices like laptops, especially when BIOS updates are handled via Windows.
It was me yesterday too, and I own an Asus Rog X670E-F. The BIOS version I had is unknown to me, but I noticed in the patch notes for the latest version (2604) that a few fan-related bugs were fixed—possibly related to that update. I updated my BIOS just in case. What version were you using when those fixes were mentioned?