PC not booting up, only RAM led lighting up

[Nimboda]

Video link for reference (https://photos.app.goo.gl/QorGiwLPeKsELRym8)

Recently built PC, was functioning properly until today when it suddenly died out. Only RAM is lighting up, even the nothing else is working.

Tried replacing PSU cord, PC worked for 15 mins and then again turned off.
 Tried running it with 1 stick of RAM, Set BIOS to factory default, nothing works.
Every time i open it, PSU does open for a few seconds ( fans rotate) and then it turns off accompanied with a click sound.

Please help
 Build
RYZEN 5 3600X
GSKILL Tridentz 8x2 3200mhz
Galax rtx2060 
Msi carbon B550
RM650 psu