Did VGA was still sending video signal out with BCLK at 121 ?
2) IIRC, you are using 1600MHz RAM, the OC'ers are using minimum of 1866MHz and usually 2133MHz RAM....i'm sure that if you use 2133MHz RAM and let BIOS RAM Speed in AUTO, it will achieve much faster speeds using 121MHz BCLK.
3) What's your NB frequency ?
4)Are you using HDD or SSD ?
It is cool overclocker but all this cannot be achieved with normal SATA disks using APU SATA controller, beyond 105 mobo simply does not detect SATA3 HDD anymore (whatever i set there for SATA options) .