Question My computer isnt picking up the 3200mhz and it says 2133 mhz

Jul 3, 2020
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My pc specs are
G.SKILL TridentZ Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3200mhz
Gigabyte GA-Z170X-Gaming 7
Intel i5-6600k 3.5ghz