Ok i will check the ram stuff. What will it look like in the bios. I find it weird i was running those speeds, even restarted once or twice, but when i leave it off all night it it wont post
As far as the ram speeds. I clicked one option in bios and it gave me 3 speed options and i picked the closest to 1600 without going over but i didnt see a multiplier
My ram voltage is set at 1.5 (voltage in specs)
Try 190 x 21
vcore of about 1.255 or so I really don't think you should have it up at 1.4
mine would reach 4 easily without even upping voltage. Voltage helps add stability its not something you should up just because you think you need/want too
try to keep you RAM at or close to its stock settings while overclocking the CPU.
Also your on an H50 i'm on A70 cooling. you should be doing fine as far as temps.