Gigabyte BIOS confusion

hello,

I'm using a Gigabyte EP31 DS3L mobo.

I'm having some confusing problems with the bios. When I try to set the memory voltage, the PC health status page displays the voltage as being 0.05V above what it is set to. Ie, if I set the voltage to 1.8V, it will show 1.85V, and with 2.1V it shows 2.15V. Can this damage my memory? Should I just try to drop it by 0.1V? Will running 0.05V damage the modules?

Also, there is a setting called "Performance Enhance". This is what is says in the manual:

-Standard: Lets the system operate at it's basic performance level.
-Turbo: Lets the system operate at it's good performance level
-Extreme: Lets the system operate at it's best performance level

Is it to do with under/overclocking or something? :confused:

voltages: usually very conservative with their readings, it's probably displaying 0.05v over to make sure you stay on the safe side, only way to know for sure is a multi metre. generally, try and stay 2.0v or below for memory (unless core i7!!) unless you have direct cooling, in which case go a bit higher. so if it's reading 0.05v below, just set it to around 1.9 or 1.95 and shouldn't matter that much. you want the lowest stable voltage so if ur trying to overclock your memory, get to the right frequency then stress test and increase voltage until it's stable

and those performance things i'd stay clear of, control it all yourself if you can

The voltage at +0 will be 1.8v no matter what the is reported value may be. Set the voltage to be whatever the manufacturer recommends then if you like lower it a notch and check the stability.

I leave my settings at standard and then fiddle with everything myself.