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CMK16GX4M2B3200C16 v5.39 won't run at 3200mhz, ryzen


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Try this timing and voltages.


Make sure you have latest BIOS which have AGESA

Select XMP Profile 1 and adjust some timing and DDR voltage manually.

(For my BIOS, Only tRC and DRAM Voltage need to adjust, other left Auto follow XMP Profile)


DDR Clock 3200MHz

DRAM VDD 1.380v (or try 1.385-1.400V if not stable)


CAS# latency (CL) 16.0

RAS# to CAS# delay (tRCD) 18

RAS# Precharge (tRP) 18

Cycle Time (tRAS) 36

Bank Cycle Time (tRC) 72

Command Rate (CR) 1T (Or 2T if not stable)


On my system this timing running stable on Ryzen 5 1600x for a while now.

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