I confirm even though the board may support memory voltages of up to 1.65V, the CPU itself is not tolerant to higher than 1.5v. "Intel recommends using memory that adheres to the Jedec memory specification for DDR3 memory which is 1.5 volts, plus or minus 5%. Anything over this voltage can either damage the processor or significantly reduce the processor life span." (qtd. here). Hence, please, use 1.5v. memory.