New
#101
I think I found something....
Try to Disable "Intel Smart connect" Technology
Intel® Smart Connect Technology is designed to update programs by periodically waking your computer from sleep/standby mode for a short time. This function works with applications that automatically get their data from the Internet, such as Outlook* and Windows* Live Mail.
That said, it should not interfere with a Powered down system. But still is the only feature I could find in that bios. that could relate to your problem.
Features and Requirements for Intel(R) Smart Connect Technology
And the default delay is 60 minutes.