Hello. I would like to know, if possible, if I can use two different voltage dual channel kits on my pc build. I bought a Kingston HyperX Genesis 8GB (2x4GB), DDR3, 1600MHz, CL9, 1.65V, XMP, Grey kit a few years ago, works like a charm, kudos on the product, but I think it's time to add another 8 gigs of RAM. The problem is that the HyperX Genesis kit is not being sold anymore, for some reason, I can't seem to find it anywhere. And the RAM that I can find are all 1.5 V kits. Is there any reason 1.65V kits aren't sold anymore ? Can I mix the kit I have (1.65V) with a Kingston HyperX Savage Red 8GB(2x4GB), DDR3, 1600MHz, CL9, 1.5V kit or any other 1.5V kit? What would be the downside of mixing them? Can i make it work? Looking forward for your reply. Thank you.