safe micron DDR3 voltage

[saaya]

3 days running 2.45v Cellshock D9GTR @ TaPaKaH
... He ran 2.4v none stop for ALONG time...

yeah, he tried to kill the kits to rma them cause he didnt like how they oc
seems like some kits can take high vdimm of 2.4v 24/7...

2.75-2.8v should be good for benching... D9GTR, please notice this...

for some kits... some will already die after hours of benching with 2.4v, some apparently with even less vdimm than that.