@Sirmalinton Are you sure this could be the reason? I have NVME's with btrfs running with following options in fstab defaults,noatime,nodiratime,compress=zstd,nodiscard,max_inline=0 And temperature is quite acceptable (see screenshot below). I had initially set up my NAS is the standard metallic case which was quite useless. So I got a 3d-printed one with a fan on the top to keep everything cool. See my post in another thread https://forum.armbian.com/topic/48705-cm3588-overlay-for-fan-speed-change/#findComment-214042. Now I don't have to worry about the temperatures at all. I must also mention that my NVME's have heatsink attached.

We provide mainline based kernels via repository. They are up2date with what exists, but support is not complete and also not tested on this particular hardware.

I did see that script. I disabled CGROUP_SCHED by commenting it out. I don't think that is the "right way", but it worked for now.

There is another feature of framework, "armbian-kernel", sections that applies on top of (basic) configs: https://github.com/armbian/build/blob/main/lib/functions/compilation/armbian-kernel.sh#L205-L336 (Docker as example)

Have tested the Orange Pi 5 Ultra and the Armbian Linux v6.1 vendor IOT image for the 5 "Max" model, using the same Max' `rk3588-orangepi-5-max.dtb` FDT file works better than with the rk3588-orangepi-5-ultra.dtb (extracted from the old official Orange Pi image), as surprisingly, dmesg shows less errors with the Max DTB. Tested: ✅ eMMC works. HDMI ports: ✅ Port 1 out works fine. ❓ Haven't tested the port 2 input. Would guess it doesn't work as the Max has bot ports as output. For the AP6611s (SYN43711): ✅ WiFi works. ❓Haven't tested Bluetooth. ✅ The NPU works great. Using rkllama: https://github.com/NotPunchnox/rkllama cat /sys/kernel/debug/rknpu/version RKNPU driver: v0.9.8 Based on this, it seems to that anyone looking for an Arbian image for the Orange Pi 5 Ultra can use the Max's Linux 6.1 vendor version, which is the most useful image. For mainline open source versions, it appears like Linux kernel >6.15 or >6.18 will be required.