3x 4gb F3-12800CL9T g skill 1.25v cas 9

[heydo6]

i was thinking of upgradeing to 12gb from 6gb . i was trying to decide which ones to get when i ran across these ... cas 9 at 1.25v ? seems i could up the volts and lower the timing alot more ?

been awhile since i have read any thing on OC'ing so i thought some of my good friends here might still be around to offen some hints ?

thanks

http://www.newegg.com/Product/Produc...82E16820231466

hopeing i can OC the lower volt ones to close to the lower timing ones , if that makes sense ??? here are the other ones

http://www.newegg.com/Product/Produc...82E16820231465

sig is old, i7 at 3.8ghz asus x58 board

 

[heydo6]

no one has any advice with 1.25v ? think i should just get 1.5v or more ? thanks