I have an intel series 6 chipset with an i7 Sandy Bridge CPU. Also a Intel HD3000 IGP + Geforce 555M dGPU (optimus) My eGPU setup is a PE4H+P3MN and a nice new GTX780 Ive been able to boot windows without error 12 using compaction, but get an error 10 (device cannot be started) when I do this (although the cards HDMI audio seems to detect and load fine) I was thinking it might make things simpler if I skip compaction and just disable the dGPU, leaving the allocation space free for the eGPU - is it not possible to do this with my configuration?