So I'm trying to overclock a Shuttle barebones system with Intel G45 chipset and an E6400. The chip will do 3.2 GHz easy (8x400) and is Prime stable. As soon as I start a 3D app the system crashes immediatly. I back the system down to 2.66 GHz (8x333) and 3d apps work fine. I'm guessing the integrated graphics cannot handle the 400 MHz FSB. Has anyone seen an article or have any personal experience with this? I'm looking for what the max overclock the integrated graphics side of the chipset can take?