Sovol SV08 mainboard 4010 fans

The stock fan is pretty loud, and the stock shield really limits air movement, causing higher temps. This mod lets you replace both for better heat mitigation. I would recommend the 3-fan model, only because then you are blowing over both sets of stepper drivers, but the 2-fan version should be OK as well. With the fans I'm using at 70% max power, they are 65DB right next to them, and about 42DB about a foot away. It's so much better than the stock. I just plugged the 2 extra fans into the open ports that are available.

You will need to print with supports. Insert the nut inserts from the side that doesn't have the fans.

Hardware:
6-12 M3x5x4 (5mm wide and 4mm long) insert nuts (same as stock voron) I only used 2 per fan, but you can use more.
2 M3 hammer nuts
2 M3x8 screws
6-12 M3x12 socket head screws for fans
3 4010 ball bearing fans (these are what I used: https://amzn.to/4erOisy (I may earn a commission on any purchases from that link))

The following code will allow control of all the fans. Replace the stock exhaust fan code with this. It sets all 3 fans at 20% and will set them up to 70% based on temps:

[multi_pin host_fans]
pins: PA1,PA2,PA6

[temperature_fan Host_Fans] # Host computer cooling fan
pin: multi_pin:host_fans
max_power: 1.0
sensor_type: temperature_host # Set to host computer to control temperature
target_temp: 48 # Host computer cooling fan starting temperature
min_temp: 0 # Minimum temperature, below this temperature an error will be reported
max_temp: 80 # Maximum temperature, an error will be reported if the temperature is higher than this
off_below: 0.10
kick_start_time: 0.50
max_speed: 0.7 # Maximum speed, 70% of full power operation
min_speed: 0.2 # Minimum speed, 20% of full power operation
control: pid
pid_Kp: 2.0
pid_Ki: 5.0
pid_Kd: 0.5
pid_deriv_time: 2.0