If PC is just used and I will shut down -> turn on -> it doesn't double boot. Just when I first time turn it on and it's "cold".
If I have eveything default on BIOS, it's not double booting, but this is OC motherboard, so I exept it works without problems then.
There is pics from all my BIOS settings:
http://otavafiles.fi/plaza/s/f/editor/images/X-2013093022235095737.jpghttp://otavafiles.fi/plaza/s/f/editor/images/X-2013093022235247043.jpghttp://otavafiles.fi/plaza/s/f/editor/images/X-2013093022235381147.jpghttp://otavafiles.fi/plaza/s/f/editor/images/X-2013093022235412251.jpghttp://otavafiles.fi/plaza/s/f/editor/images/X-2013093022235644855.jpgI also tested BCLK Frequency default, DRAM Frequency 1333MHz with 1,5V.
I tested all BIOS versions and every time reset CMOS.
I also tested lower Core Ratio Limit.
Some times when I shut down the PC, keyboard light still left on, but when I again start PC -> shut down, the keyboard light get off. That problem with defauld BIOS settings too.
I do not expect these types of problems so expensive motherboard.
Is this problems normal or can I change the motherboard to new one because I have warranty?
Seasonic 1000W power supply, 4770K works normal on my other PC's.