I set 8GB of that ram to 1600. I have that same kingston hyperX DDR3. KHX1600C9D3K2/8GX
I have the timings @ 9-9-9-27
but when I try to set DRAM voltage to 1.65 my bios will only allow me to set 1.66 or 1.64.
I went with 1.64. does this matter?
No, If you're using more than one set tho, go with 1.66v for the extra juice the second set will draw