Fan

When i recently received a bunch of Alliwava U58  based on the Ryzen 7 5825U i thought i have issues with my hearing at first. They were crazy noisy, especially the fan was awful. After researching a bit, i found a nice solution In the Forum of Alliwava  , a BIOS Update is offered which resolves the issue. After downloading the file C4909086_ShellAuto, the Fan is already a lot more bearable than before (almost no noise under idle). However you can then even adjust the maximum power limit of the CPU to even limit the noise also under load (BIOS -> Advanced -> Power Limit Select). ...

If you ask yourself which voltage the fan connectors of the BIGTREETECH E3EZ* board have, you are not alone. The User Manual of the BIGTREETECH E3EZ Board just features a “Mainboard Supply Voltage” description but not special “Fan Voltage”. And this is on purpose - basically the fan features the same voltage as DC_IN. So if your Mainboard is connected to 12V, the fans also should be 12V fans. And likewise with 24V (which is a bit more common). ...

In the endeavor to silence an Victron MultiPlus-II 48/5000/70-50, i replaced the internal fan with a much more silent fan - the Noctua NF-F12 iPPC-24V-3000. For this purpose i needed remove the original fan. Unfortunately Victron decided to use a non-standard fan plug (which makes sense since the MP2 is also used in environments where the plug might be rattled out) which left me with two options: ...