03-26-2021, 03:04 AM
I've also got the NAS case, and that was with the lid on and two 3.5" hard drives in, but the build process gets to the same temperature on the radxa 3399 board. I'm not too worried about this because this it isn't normal to be hammering 4 cores for 6 hours straight. But it would make sense if acpi_thermal was working to have passive throttling of the CPU, I'm not sure what's going on in that case, I need to investigate.
On the topic of the NAS case, I found it very difficult to get two 3.5" drives to fit. The bottom drive only clears the tall heatsink if I have the drive at an angle. Very tight inside. There's no way I could fit the fan in either since I had to move the hard drive back to get the angle to clear the heatsink.
The wiki for the NAS does say "any of the three available heatsinks will fit in the NAS Case" but I don't think this is true now that I've tried it.
I didn't order the fan. I was thinking of having a 3 or 4 pin PWM fan using some of the gpios and an external circuit, but that's one of those projects I'll never get around to doing. An easier option would be to have a 12v fan with a speed adjuster connected to the sata power with a splitter, and then just adjust the speed so it is silent.
On the topic of the NAS case, I found it very difficult to get two 3.5" drives to fit. The bottom drive only clears the tall heatsink if I have the drive at an angle. Very tight inside. There's no way I could fit the fan in either since I had to move the hard drive back to get the angle to clear the heatsink.
The wiki for the NAS does say "any of the three available heatsinks will fit in the NAS Case" but I don't think this is true now that I've tried it.
I didn't order the fan. I was thinking of having a 3 or 4 pin PWM fan using some of the gpios and an external circuit, but that's one of those projects I'll never get around to doing. An easier option would be to have a 12v fan with a speed adjuster connected to the sata power with a splitter, and then just adjust the speed so it is silent.