Question windows crashing after changing ram frequency

Aug 7, 2019
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Hi my ram is rated for 2666 mhz but when i change it to that frequency the compter crashes/ hangs up after going past login screen.

These are my computer specs
motherboard: gigabyte b360 hd3
cpu: i7 8700
gpu: evga gtx 1070 dual fan
drive:1 x sandisk ssd 4x 8 years old hdd
Ram:corsair vengence rgb 2666 mhz 16 gb (2x8gb)

power supply: cooler master 550W


could the issue be that I need a bigger power supply.

Thanks