Is it possible to combine low voltage with non-low voltage memory?

[huizinga.erik]

I have:
M4AGTD Pro motherboard
OCZ3P1333LVAM4GK 2x2GB memory

I want to extend my RAM with another 2x2GB I found for sale:
OCZ3P13334GK 2x2GB

It's mostly the same except for two parts in the part number:
LV: low voltage, mine runs at 1.65V and the other at 1.8V.
AM: mine is an AMD Edition, the other generic.

Is this a problem? I guess I cannot run my RAM @ 1.8V, nor the other @ 1.65V, or is this possible? According to the manual of my motherboard, I can only set one DRAM voltage, so it would be either 1.65V or 1.8V.

 

[cin19]

Set to the 1.65V manually with OCZ3P1333LVAM4GK, save and exit. Shut down the PC, install other pair RAm, boot the PC to see what happens.

If the PC can boot, done. If the PC can not boot, you will need to set the timing too, like set to 7-7-7-21 from 7-7-7-20. If you still have problem, try up the voltage little bit, like 1.675 or even 1.7V, etc.