This message was posted on behalf of Intel Corporation
Thank you for contacting Intel Communities.
As you mentioned, the Intel® Xeon® Processor E3-1270 supports DDR3 RAM up to 1333 MHz, the motherboard you have supports XMP profiles so the RAM can be overclocked but you have to consider that any kind of overclocking is not supported by the CPU.
Altering clock frequency or voltage may damage or reduce the useful life of the processor and other system components, and may reduce system stability and performance. Product warranties may not apply if the processor is operated beyond its specifications.
Hope this information helps.
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