Regarding DDR3 memory, I noticed that a lot of the 1.5v or 1.6v DDR 1333 kits voltage kits are only 9-9-9-20ish latency. My question is, if I buy a higher end kit that is say DDR3 1600 or 1800 spec but rated for 9-9-9 latency and 1.9 volts, could I get that kit to run at closer to 1.5v and 7ish latency if I only run it at DDR3 1066 or 1333?