Bios 905

Patriot Extreme Series DDR3 1333 7-7-7-20 1.7v

I'm running my memory at 1.8v (4x1GB sticks) but the monitor in the bios says 1.9v. Everest gives me the same reading 1.9v.

What's up with .1 descripency?

The memory is rated at 1.7v but with 4 sticks I have to run it at 1.8v(default timings) or Vista x64 won't boot. Am I missing something in the bios or is this nature of the beast?

The actual(monitor) readings are what scare me, it's not leaving much room to push it. I wanted to give my qx9650 a mild overclock say 9.5 multiplier, 400fsb and have the memory running at 1600mhz as well.

PS) Forgive my nube overclocking skills...