last night i popped out my msi z87m-g43 due to lack of of forward thinking and jumping on a newegg deal. Got a g65 from amazon.
install went great, was gonna go with a clean install of 8.1 (MSDN via CET program at CFCC) but decided to go unclean for shits and giggles
went well and was surprised
except for Ethernet... big red X and the proverbial ! in device manager
tried killer drivers got the same error message ... formatted..new 8.0 ...all good but still no Ethernet ..hardware unsupported.. googled ...downloaded..it went from way cool to rat in a maze
ya know how ya get ... spent a couple of hours with cable management... already pissed at myself for saving a few bucks when in the long run i went large anyway ... so i wiped and went with win 7 sp1 pro, all was ok .... i have internet access, sli ...... cool but it's 4 am, but its win 7 and i am one of the few who like 8.1 ( it's like Linux learning curve experience)
this morning ...on an outside the box , first cup of coffee, thought , i popped in my 8.1 disk and upgraded ..audios to all and crossed my fingers
well ...it worked ...why ? no clue.
is the actual Killer ethernet software working ..NO. do i care right now .. not really.. give me a viable 8.0-8.1 driver for my ethernet controller.
This was an extreme example and i how i got it to work...was fun and frustrating at the same time...not a know it all, and still irritated that bios will not let me do the win 8 thing due to my gtx 660's not being certified or whatever ... again do not care right now...
have page file's, ram disk , steam, ubi and a whole bunch of other crap to do
hope this helps