PC won't boot on new build!

Tigerwarrior1

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Jul 8, 2017
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Hello Community!

So I've finally built my first rig with hours invested, only to get a dissatisfied face when my first attempt at booting failed.

Basically, when I press the power switch, it turns on, fans, LED's, everything, but after about 10 seconds, it shuts off, then turns on again going into a continuous on/off loop with no display on the monitor.

My friend said to try slower ram since it's a Ryzen build, which I did and still no boot. I've also tried a different psu, resetting the CMOS, but it still did the same.
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Specs:

Ryzen 3 1200
Gtx 1050 oc
4gb ddr4 2133
Asrock Pro4m
CX550m PSU
1tb Blue HDD(used OEM)
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Thank you for your time!
 

Tigerwarrior1

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Jul 8, 2017
72
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4,640


I tried 3 of my ram slots because my first one is blocked by the cpu cooler.
 

Have you checked the CPU for any bent pins? Are you sure the CPU cooler is mounted properly?