The manual is available as a PDF download on the ASUS website but if you do find an owner's manual do NOT follow the instructions in it for clearing CMOS, there is a misprint. It says to remove the jumper next to the CMOS battery for 10 seconds with the power disconnected and the battery out and then replace it....... There shouldn't be a jumper on the pins, you unplug the power, remove the CMOS battery and THEN install a jumper for a few seconds and REMOVE the jumper before replacing the battering and plugging the PSU back in.
I found out the hard way, I read that and saw there was no jumper so I installed one............ WRONG!!!! :x Now I lose all my changes everytime I unplug the power cord or the power goes out. Tried flashing a new copy of the BIOS but that didn't work. Minor inconvenience true but it bugs the crap out of me.