Resurrecting an old thread - @just.in.time did you ever get this resolved? I just finished recapping one of SE/30's analog boards and installed the Noctua fan at the same time. I just cut the wires from the Elina fan and soldered the Noctua fan's wires in place. I have another SE/30 with the Elina fan and side-by-side the Elina puts out way more air as felt by my hand at the back vent. The Noctua is allowing the top part of the case by the flyback to get a lot warmer than my Elina cooled SE/30. I bought the Delta fan and may give that a try as well, although soldering it in and then replacing it if it is too loud is a bit of a pain. Ultimately, I bought two of these Noctua fans and am really disappointed as the CFM per the fan specs is clearly overstated in my case...Johnnya, can you actually feel the airflow out of the computer? I installed a Noctua in my SE/30 while it keeps most of the case fairly cool to the touch, save for one spot that gets a little warm, I can only feel the slightest amount of airflow coming out the back. I'm wondering if the factory fan moved more air.