Hi guys, I want to present you my newest PSU mod.
Todays PSU feature two designs: one 80mm fan blowing out (and maybe some blowing in, but adding no airflow) or one 92-120mm fan blowing in at the bottom. The first solution overs little airflow and the source of noise is directly at the back. The second sulution needs much of space inside the PSU and the airflow has to go around a corner. So this is my solution:
This a Enhance 300W unit and two 80mm fans taken from a Samsung 112W ATX PSU blowing in. At 5V this are the most silent fans I encountered yet (was not able to compare Panaflo or Nexus). I removed the interior of the PSU and dremeled two ~80x80mm shapes in the back. The fans are a around 3mm too big, so the outer side is hanging over a little bit. I used two ordinary fanscrews per fan.
The result: It may not look good, but I am very satisfied. The noise is very predictable since you can use you favorite fans. The fans are running at a fixed 5V. Don't know the rpm. I can feel an airflow going through the grill on the exhaust. The air never feels hot. Haven't done any temperature testing because I am very confident that the PSU is fine.
note: the second fan is slightly damaged, in case you wonder.