Well, I had some few time.. but the problem still there.
Quite frequently with cold boot.
But I checked the BIOS settings you suggested, the keyboard stood correct, the mouse not. Only, now I start to doubt it is the USB that fails but might be my computer just freezes.
Normally right after bootup my keyb&mouse seem to fall out, the light of G15 keyb and mouse fell out and I couldn't do anything but reset. Now last the light of keyb didn't fall out but still nothing seem to works, no keyb, no mouse. Then after I noticed the freezing when I was quick in starting up a prog. Then it freezed during it was loading prog, so I think it's not the USB but the computer that freezes or locks or hangs soon after it started up cold.
After resetting it just starts normal.
Now soon when I have some more free time I finally can open up my case again to go rearrange my cabling and add some hardware... thinking if I should maybe reinstall everything after. I finally received my order, some extra hard drives and a Hightpoint Rocketraid 620 to connect the 6GBs hd's too.
Though I'm not sure can you run OS drive from the rocketraid or is it just to connect storage drives too?