Ram different voltages

mysticalgenius

Honorable
Sep 19, 2012
34
0
10,540
Hi i recently purchased some ram its 2 x 2gb ddr2 @ 1.8v and my old ram is 2 x 1gb @ 2.1v so question is could i run them all together i know both sets run perfectly separate but have not tried together yet and both are identical performance just different voltages currently the 2 x 2gb is running in dual channel @ 800mhz any info would be appreciated thanks :D