1 of 1 people found this helpful
it should be avalible in the Bios, on my DZ77BH-55k I have the option to disable "Deep S4/S5", which I have disabled.
My USB keyboard/mouse wake the system up without issue.
I've found a review of this board in Korean which shows screenshots of everything in the BIOS, including the Deep S4/S5 setting so it looks like the setting is in there. The link to the review is http://www.winfix.net/bbs/board.php?bo_table=ddforiview&wr_id=1347&sca=199-201&page=0
nice if you get it, just disable deep s4/s5 and you should be good to go