All of my fans do the same thing for a second when I boot my PC. My last rig didn't do this, but this one does. I actually kinda like it. I figure it helps get rid of loose dust.
Out of curiosity, what app or tool are you using to determine that the PSU is running at max speed? I didn't even know it was possible to keep track of such a thing. --- 4670K | 2GB GTX 770 OC | 8GB 1600 9-9-9-24 | 120GB SSD | 1TB WD Blue | Win8.1 Pro http://i597.photobucket.com/albums/tt56/S26DG44B/PsythikViolet_Blooded.jpg
The power supply has its own fan controller and does that. It can't be controlled. --- -What is best in life? -To crush your enemies, see them driven before you, and to hear the lamentation of the women.