Sovol SV04 motherboard fan modifications
thingiverse
First step to reduce the noise of the SV04 is change the fans inside the box. There are 2 fans, both 24V. One 60x60x10 inside the power supply and a 4020 turbine as used in the extruders. Additionally I installed a second 60x60 fan over the motherboard fixed in the grill. This fan is connected at the free connector near the 40x40 fan connector. This helps to sebd the hot air outside. This little board allow to install a 40x40 fan. Below there is a link of a 24V units that they aren't the more silent ones, the more silent is the expensive Noctua and it's only available at 12V. If you want to use the Noctua, the board has space to fix a DC-DC 24V to 12V board. Both fans can be replaced for the following ones: 60x60x10 24V: https://amzn.eu/d/gH6zEbB 40x40x10 24V: https://amzn.eu/d/dNTnbbC
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