"Happy Wife = Happy Life"
Quick someone set that in stone, that's where it belongs.
To your question, set your NB to 1.5, your memory to 2.1, CPU to 1.3, check your temps using Core Temp
and you really should update your BIOS.
Here's a review of that board and in it it says you can use the Asus EZ Flash which is the simplest way to update the BIOS.
Basically you download the BIOS file from the Asus website, extract it, copy it to a USB drive or formatted floppy, take out the floppy/USB stick, reboot, enter BIOS, go to EZ Flash in BIOS, EZ flash should detect it once you put the floppy/USB stick and tell it to update.
It sounds like a lot, but it is very simple. I also learned it at an old age(39) and it was easy for me. For more reading in updating the BIOS, Asus covers it very well in the manual. Good luck and post back what happens.