Skipper Billy Posted October 8, 2020 Share Posted October 8, 2020 I want to install a couple of 80mm computer cooling fans in my observatory to run 24/7 to extract air and provide a sustained throughput of airflow. I have a 12v DC supply handy.All the ones I can find are either three wire or four wire.Rather than try to figure out by trial and error (and possibly damaging the fans) which wire does what I thought I would ask the collective wisdom if its even possible to run a three wire fan with just pos and neg 12v supply ???Something like this... https://www.amazon.co.uk/dp/B0119SLG18/ref=emc_b_5_t 1 Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.