BSOD

[weird_dave]

OK, the picture came out rubbish!
I'm sick of this BSOD, can't seem to find the problem.

http://www.facebook.com/photo.php?pid=4361805&l=5af2964d7a&id=627856959

Asus P5Ne SLi
E4300 1.8 @ 3.0
6GB DDR800 @ 800
GTX 260 896MB

I've reinstalled W7 on a different drive, ran memtest86, occt and prime stable.
Does the same at stock speed.
It happens about once a fortnight, randomly.
Any ideas how I might try to debug this?
I'll be trying my old GFX card next (8800 GTS 320MB).

 

[weird_dave]

I'll try removing 2GB and see what happens. It would almost be better if it failed more often!