ASRock > Z170 Extreme4

Memory

– 4 x DDR4 DIMM Slots
– Supports DDR4 3866+(OC)

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/3600(OC)/3200(OC)/2933(OC)/2800(OC)/2400(OC)/2133 non-ECC, un-buffered memory
– Supports ECC UDIMM memory modules (operate in non-ECC mode)
– Max. capacity of system memory: 64GB

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– Supports Intel® Extreme Memory Profile (XMP) 2.0
– 15μ Gold Contact in DIMM Slots

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3866+(OC) memory frequency can only be achieved when a single memory module is installed (Single channel memory).
Please refer to Memory Support List on ASRock’s website for more information.

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Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows® 32-bit OS. For Windows® 64-bit OS with 64-bit CPU, there is no such limitation.

– Dual Channel DDR4 Memory Technology- 4 x DDR4 DIMM Slots- Supports DDR4 3866+(OC)/3600(OC)/3200(OC)/2933(OC)/2800(OC)/2400(OC)/2133 non-ECC, un-buffered memory- Supports ECC UDIMM memory modules (operate in non-ECC mode)- Max. capacity of system memory: 64GB- Supports IntelExtreme Memory Profile (XMP) 2.0- 15μ Gold Contact in DIMM Slots