Hi Silvia,
S/N BQKT3340009W
AA# G74721-304
i also noticed other issues which i did not want to mention at first but:
there is no way to select a memory profile. Only the slider in the memory tab but it only shows a bus speed. i cannot configure timing params anywhere. I also cannot select and see the jedec/xmp profiles.
more important, my memories jedec/spd default is 1333mhz, the slider is at that this speed when i load defaults but the moment i touch it, it goes to 1600 and will not go back to 1333. nothing that I do besides loading defaults again will set it back to 1333.
The default settings are also unsafe from the start. unlock extreme voltages is checked when default settings are loaded. the GPU voltage offset was also set to +0.2 or so for a while when loading defaults. What changed is unclear to me but it now shows there is no GP offset. guess the many flashes and attempts at resetting things did fix something somewhere.
if legacy boot is disabled, you cannot get the setup to display on the display port output. It simply does not show anything. I legacy is enabled it does show a message that it's entering setup but hangs at this screen and never actually enters. Apparently it is waiting for a hdmi monitor since plugging in seems will solve the issue and show the bios screen on both monitors. I'm using a 30" screen (2560x1600) on the display port output b.t.w.
I can and will ship off the board to warranty but I am a little annoyed that I have to constantly ship boards back to Intel. Besides the last two boards I have always favored Intel boards over other brands but somehow it seems impossible for Intel to make a board that just works out of the box. given that I find these issues within a very short period of time I'm guessing no testing and debugging is done anymore.
FYI: this board is still C1 and has a manuf date of 29 aug 2013.
my setup:
RAM: Kingston Beast 32GB DDR3-2400MHz KHX24C11T3K4/32X
CPU: 4770K
SSD: intel 520 240GB