Yup. I have four sticks in too, same slots ( per the Asus manual ).
What I'm trying to figure out though, are the following questions:
1) Am I ok to mix and match 4g with 2g, or does it compromise performance?
2) If I am ok to mix n match, does it matter what order to put the 2s and 4s in, or am I ok so long as they are in the recommended 4 slot config?
3) Is 12g total ok with this setup, or does it prefer 8g, 16, 32, and 64 totals?
I"m pretty sure I'm ok to have 2s and 4s mixed. I'm less certain about item 3) though ...