What are good PC case fan configurations to maximize cooling efficiency? The case has mesh front, three front fan slots, two top fan slots and one rear fan slot.
A good fan configuration for maximizing cooling efficiency in a PC case with a mesh front panel and the given fan slots could be:

- Three front intake fans: These fans should be mounted as close to the mesh front panel as possible to pull cool air into the case.
- Two top exhaust fans: These fans should be mounted at the rear of the top fan slots to exhaust hot air out of the case.
- One rear exhaust fan: This fan should be mounted at the rear fan slot to exhaust hot air out of the case.

This configuration allows for a positive air pressure inside the case, where there is more air being pushed in than is being exhausted. Positive air pressure helps to prevent dust buildup by reducing the amount of air that is able to enter the case through unfiltered gaps and cracks.

Alternatively, you could try a combination of two front intake fans and one rear exhaust fan, or two front intake fans and two top exhaust fans. However, these configurations may not provide as much cooling as the first configuration. It's also worth noting that the effectiveness of any fan configuration depends on factors such as the type and size of the fans, the components in the case, and the ambient temperature of the room.
What are some factors to consider when choosing the type and size of fans for a PC case?