Intel really does a crappy job of explaining the ram. The sticker says don't get ram with stock voltage of over 1.65v, but that is if you aren't overclocking. The QPI/DRAM (VTT on other boards I believe) has to be within .5 of the DRAM voltage, and unless I'm a complete fool, .5 less than DRAM. So if you buy ram with over 1.65v stock, and don't adjust the QPI/VTT voltage you will damage the CPU.