So, still encountering issues with this. One thing I noticed on the board installation. There are two "Pwr" slots for PSU entry (both 8 pin), "Pwr 2" and "Pwr 3". I only had enough PSU cables for the first half. Do I need to install another PSU cable out from the PSU to accompany the other slot? They sit next to each other on the board. Could this resolve?
A few key notes:
* low performance on Windows Experience for the proc (4.9 on a i7 4770)
* missing PSU cable and do not have another one to slot into the second of the top two Pwr ins
* all drivers updated including bios, gf 660ti card, realtek, and other
* ssd is the main drive
* Win 8 Pro
Any help appreciated...