Ram same timing, different voltage

Hello everyone,

I have a recently put together a computer and I have some RAMs laying around that I'm considering to use in this build. There is a small issue though. Although the RAM that is currently in the computer and the RAM that I'm thinking of using are both Corsair and have the same timings, the voltages are slightly different.

Here is a small description:

Motherboard: ASUS P8Z77-LX

CPU: Intel i3 3220

Installed RAM: 4GB Corsair Vengeance Single Module, 1600MHz, 9-9-9-24, 1.5V (link here)

RAM laying around: 2x2GB Corsair XMS3, 1600Hz, 9-9-9-24, 1.65V (link here)

I have already tried them together and it seemed to work fine, but the question is: will the fact that they have different voltages affect stability or performance on the long run?

Might have to drop both down to 1333 @ 1.5. The only way to find out is to plug em both in and test them.  Sounds like it is all working fine already. I think you might be only running in single channel though. I like running prime95 overnight to check memory.