XFX 680i Motherboard (MB-N680-ISH) Voltage Question!

Ok. I've been racking my brains over this, and sorry if I'm a bit of a newb when it comes to overclocking. Haven't done it since 2000. My question is in regards to this motherboard, if anyone has experience, on what memory voltages it supports. I'm looking to build a new powerhouse system and want to make sure I get the best memory I can. I already have an XFX 8800 GTX 768 DDR3 video card, so I want to eliminate as much choke as possible and get the best performance. I may purchase another one for SLI as well.

The research I've done shows that the motherboard is spec'd for 1.8v, but the manual shows 1.85v. I just would like to know what this motherboard supports. I've tried searching the forums but no real luck. Any suggestions as to what memory would work well with it would be nice as well!

I appreciate your help in advance, and if I've left any info out, please let me know.