Question Power supply not giving power to motherboard

Apr 2, 2019
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After upgrading my new CPU and graphics cards and plugged everything together my computer wont turn on. When I tried o power up the computer I hear a zzzt sound coming from the power supply. I reverted back to the old components and still the same problem. Need help thanks.
 
Apr 2, 2019
6
0
10
I5-6600K, cooler master heat sink, 2×8g 2400, msi Z170A Gaming M5, GTX 1060, and corsair 650x.

Tried Upgrading the CPU to the I7 7700K and GTX 2080