Thinkpad T420 4180 two RAMs with Different Nominal Voltages

Hi,

My T420 has Following Ram

Samsung M471B5773CHS-CH9 2GB DDR3 1333MHz CL9.

This is nominal voltage of 1.5v

I want to add

Crucial 8 GB DDR3 PC3-10600 • CL=9 • Unbuffered • NON-ECC • DDR3-1333 • 1.35V

http://www.crucial.com/store/partspecs.aspx?IMODULE=CT102464BF1339

this has nominal voltage of 1.35v.

Except the voltage the RAMs matches .

Please help me

Please advise if this Crucial RAM is ok to use with Samsung RAM.

Thanks
Sachin

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