I keep reading about people talking about RAM voltage but I have no idea what they are talking about. Now I'm starting to get the boogie men about the new build I'm making. Here is the MOBO, CPU and RAM.
Think of a ram modules voltage as the power required to maintain or change an electrical state. So 1.5 volt ram needs 1.5 volts of power to change a 1 to a 0, for example. 1.65 volt ram would require that much power to do the same.
RAM is designed to be run at a certain power level. Running at a different power level can damage the ram, or cause the data in the ram cells to become garbled.
Basically, current cpu/chipset designs require that memory operate at 1.5 volts. That's what you really need to know. Don't buy desktop memory that operates at anything other than 1.5 volts.