Ok, well, i will read some pages more, Sandy and Ivy bridges, I think, don't concern this board... X38 chipset, LGA775, Quad 9450, DDR3 smbios.plist as MacPro3,1
I will see with the LPC id and some tricks more...
NB: I always believed Sleepenabler.kext was obsolete for Lion and up but necessary for Snow, is it wrong ?
Thanks...
kextstat -list-only.txt.zip