I'm not too bothered about when I first turn the computer on, it's when I'm in windows and the fans turn on because the heat is rising, instead of just starting at 900rpm then building up as the temp rises they shoot up to 2000rpm then slowly come back down to 900rpm, then speed up as the temp rises.
Not ideal as they tend to come on just as I start watching a video or playing a game.
I don't see why they need to self test every time they turn on, the cheapo chinese controller this has replaced didn't need any extra power to get them going, I always had them on the lowest setting when I turned the computer on and they came on just fine.
I only upgraded to this so I didn't have to manually adjust them when I needed the extra cooling, they would never turn off, with the slider right at the bottom they just went slower, and the LEDs would flicker now and then on the lowest setting, with this I can turn them off, I don't need to manually adjust them when things start heating up and the LEDs don't flicker at all, shame it's not as simple as it sounded, without being able to use the CPU/GPU built in sensors I can see it getting ditched!