alright, for an update, i have

on board motherboard audio is : Realtek ALC883 codec chip
on board motherboard lan is Realtec RTL8211
on board motherboard video is (cgsheen guessed) nvidia 6100/ nforce 430 chipset

i have also checked the http://osx86.wikidot.com/ site but it is down "We are currently working on updating the wiki." so I will try again and disable the lan in my bios. I will then try the rest of the advice with removing the geforce .kext....

i will keep you updated.