+1 for the those.
I had had mostly Asus, Asus is still very good, but I now have a Gigabyte. It was so easy to get my E7200 to 3.8 on air with the GA bios. Great mobo + cpu combo.
Try 800Mhz DDR2 and FSB at a 1:1(400Mhz)
for that you will need to try cpu voltages around 1.31v to 1.34v. Start low then test.
Temps with above settings should be below 60c. They will probably run around 55c depending on other hardware.