Ga-ex58-ud5- Enter BIOS when in RAID mode?

You say the computer POST's, then "enters" the RAID utility.

1) Is that to say that it literally enters the utility, where you go to configure and created RAID arrays?

Or 2), does it POST, then goes quickly to the RAID utility, and then begins to load Windows?

If 2), then the computer is POST'ing very fast and you simply have to be quicker when hitting the appropriate key (DEL, F1, F2, etc...) when trying to enter the BIOS.

As a rule of thumb, a good time to hit the key to enter the BIOS is a second after you hear the beep recognizing the cpu during POST.

You really want to be at BIOS F9h with that thing - but it won't matter to the BIOS entry issue; a really fast machine, in good working order, posts so quickly, you really don't get a chance to 'see it', it's over by the time: it activates and updates the screen the first three lines (BIOS rev, CPU, and the start of the memory ennumeration; your retina sends the signal to your visual cortex, goint through three separate geometric transforms on the way; your visual cortex 'splits' the signal, sending it to the spatial recognition subsystem, and the pattern recognition subsystem; they both arrive (unbelievably) somewhat 'staggered' at the pre-frontal cortex - who says 'oh - time to hit the <DEL> key', and sends out the command impulse; the command impulse arrives at the neural plexus in the wrist, which (specialized by a couple million years of evolution) is responsible for such varied activities as delivering a winding-trap block in Win-Chun, playing a Chopin etude on the piano, or touch-typing, finally moves the selected finger... By this time, the CPU has finished its memory ennumeration, said a pleasant 'good morning' to all its hardware appendages, had breakfast, and has logged onto the internet, looking at 'computer porn' - probably greedily slobbering over that F9h BIOS I mentioned! Trick is to start 'pecking like a woodpecker' at that <DEL> key immediately on power-up, and, turn off the 'splash' screen in the BIOS. I was all enthused when I found out I could change the splash screen, had this in mind:

when I discovered that the splash screen is just a hindrance and an annoyance when you want to get actual work done in the BIOS!