#Summarized Reddit Comments on 12V DC Reversible Flow Computer Fan

##River 2 Pro Fan Usage

• Fans on River 2 Pros do not turn on while using DC, even up to 60 watts. They only run when the AC inverter is on or when charging.
• User Quote: "I have two river 2 pros, the fans never turn on while using DC, even up to 60watts."

##Advice on Fan Speed Control

• Running fan motors at 10 RPM or slower may cause issues. It is recommended to use gearing for smoother operation.
• Lowering the supply voltage or using a gear motor with a switching speed control could be beneficial.
• User Quote: "10RPM is pretty slow. I'd guess many fan motors wouldn't like spinning that slowly, or struggle to do it smoothly."

##Motor Control Solutions

• To control two sets of wires and send them to a single output, a DPDT relay or an L293D IC can be used.
• User Quote: "A relay, specifically DPDT type. Use one channel to control the relay, the other to switch the motor power on/off."

##Optimizing PC Fan Placement

• Balancing fan placements for intake and exhaust can help with airflow and cooling efficiency.
• User Quote: "Front is intake in your specific case. Top and rear should be out."

##Review of a Unique Crossflow Fan Design

• A unique case with Crossflow Fans was reviewed. Feedback included concerns about tempered glass durability and comparisons to other case options.
• User Quote: "I don't understand why people insist on tempered glass on cases like this."

##DIY Air Purifier Fan Voltage Issue

• Using a fan designed for higher air pressure is recommended for an air purifier setup to overcome reduced airflow.
• User Quote: "My fan gets 12V of power. If you’re using regular USB, that’s 5V of power."

##Discussion on Reverse Flow Offset Smokers

• Users discussed the benefits and adjustments of reverse flow offset smokers compared to traditional options.
• User Quote: "Reverse flow is the only way to go."

This summary covers various topics related to 12V DC reversible flow computer fans, including product reviews, DIY solutions, fan control options, PC fan placement tips, and discussions on reverse flow offset smokers.