Leeghoofd, might I ask what your bios settings are for the 1406 e8400 rig? Also is that on air?
I have virtually the same rig with mushkin redline (except with 8800gt) and have been using the 0803 bios for a long time because everything else was very unstable!
Thanks in advance!

*Oh and i'm 24/7 stable at 3.6 @ 450fsb