Be careful with updating it.
I can't even run the update, as it always crashes mid-install. The other day, I put a fresh harddrive in for something else, and didn't have a SP1 disk around, only SP2. I installed it and had no end of trouble. Mouse kept freezing, network card wouldn't work. Came home, put my old hard drive in, and it worked. SP2 wouldn't work, despite installing it twice off 2 different disks.
I have a really common board as well Asus A7V333.
I installed SP2 on an older machine that used to run SP1, and it definitely runs much more slowly now. I'd advise. So SP2 is a big no-no for me.