In the past i had 4Gb DDR2 of Corsair XMS memories (2x2gb dual channel kit) with a Gigabyte MA 770-UD3 and they where not OC friendly at all, if i raised the FSB even a little they would become unstable regardless what multiplier settings i used.... (replaced those with muskin ram and i could then use the FSB settings). Fast forward to today and right now i have a gigabyte 78LMT-S2PV motherboard (same sb chipset as the MA770-UD3) with an AMD FX4300 CPU and 8 Gb 1333 Mhz Kingston Value ram with an applied oc of 133 Mhz (they run at 1466 Mhz). I need that 133 Mhz OC applied to the new ram as well as i need the FSB tweaks to get my CPU to 4.6 Ghz. Which RAM do you think would be a safer bet ? Kingston HyperX Fury 2 X 8 GB DDR3, 1866 MHz, CL 10 (Item Code: HX318C10FBK2/16) Or Corsair Vengeance 2 X 8 GB DDR3, 1866 MHz, CL10 (Item Code: CMZ16GX3M2A1866C10R) I included a pool but comments are always welcomed.