Ram is pretty loose with voltage. Have you even tried leaving it at 1.65? According to Newegg, that RAM should be run at 1.65. You could even run it a little higher for troubleshooting.
http://www.newegg.com/Product/Produc...82E16820231510
I've tried both 1.65 and 1.5. Never tried high than that though.
Well actually on the manufacturer's page they note 1.65v for 2133 and 1.5 for 1600
http://www.gskill.com/en/product/f3-17000cl9q-16gbsr
edit: Tho if you're still having issues w/1.5v at 1600 or 1333 not sure what then -- timings? Match the timings shown -- try using the XMP profiles
I'm seeing someone on newegg that notes :Motherboard BIOS reports that this is DDR3-1600 MHz memory with 11-11-11-28 timings at 1.6v, not DDR3-2133 at 1.65v with 9-11-10-28 timings as advertised.
Does not work at 2133MHz (x10.66) -- motherboard BIOS reports an "overclocking error", even though motherboard BIOS supports this speed.
So they used 11-11-11-28 @ 1.6v / 1600
When I set the timing to auto, it runs at 11-11-11-28. I've tried running things with both that, and the usual 9-11-10-28