is DDR3-1600 1.35v CL7-8-7-24 safe with 1.5v?

[creatxr]

is DDR3-1600 1.35v CL7-8-7-24 safe with 1.5v?

i built my new computer for three days.
i bought three pairs of F3-12800CL7D-4GBECO (12GB) and try to use with EVGA x58 micro and i7 920 d0.
if i set dimm voltage to 1.35v i can't re-enter bios (if i set dimm voltage to 1.5v, i runs).
-----------while entering bios, at the bottom of screen is a blue bar and at the top is a cursor.
but i don't know what will happened if i set dimm voltage to 1.5v, so i use 1.35v now, if i want to go into bios, i've to reset bios.

does someone know its official safety voltage range ? only 1.35v or 1.5v also?

another question: does F3-12800CL7D-4GBECO supports XMP?

[GSKILL TECH]

You can operate them at 1.50V, but you should not need to for DDR3-1600. 1.50V is stable for DDR3-1800.

All ECO Series support XMP.

Thank you
GSKILL SUPPORT