Vmem Reduction = More Rdram Overclock???

okay, so i read the following thread which seems to say that lowering the vmem on the rdram yielded a better overclock on the rdram.

http://forum.oc-forums.com/vb/showthread.php?s=&threadid=85415

However, I have also read that increasing the voltage on the rdram should give you a better overclock.

I have 2 sticks of 256 MB Samsung (low density, 16 device). So which should I do to get more out of my rdram, overvolt or undervolt?

lower volts = less heat. theres only one way to find out......

so has anyone tried both undervolting and overvolting to see what kind of overclock they get?

tried overvolting to 2.7 with no success ,noda, zip, zilch.