Question B350 MSI Mate not booting with different Memory speeds

May 23, 2020
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About a year ago a bought the B350 MSI Mate motherboard along with 1x 8GB HyperX Fury (2933 MHz) stick. Everything worked perfect until recently I bought another 8GB HyperX Fury stick, but this one has a speed of only 2666 MHz. When I try to boot up my PC, the red CPU light on the motherboard lights up, flashes a few times, and then goes away, but then the pc never boots up. When I remove either of the RAM sticks then all works perfect.

Would the different Memory Speeds cause this problem?
 

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