Question New pc wont boot

[Bilto]

So long story short
I built a pc 2 days ago

Specs:

corei9-9900kf
Rtx2080ti evga ftw3
500gb nvme ssd 970plus
H150ipro cooler
Z390 Aorus master
(4x8) Corsair dominator platinum rgb 3200mhz

i only enabled xmp for the ram

Last night i went to sleep with my pc on after i played on it for like 10 hours smoothly, and left it on downloading games,
Woke up today surprised that it was off only with the ram rgb on !
I unplugged the psu cables & reset the cmos.
Got the battery out for 30 sec
Removed the ram and gpu then replugged them
And i try to turn it on again and nothing happens only ram lights on and cooler fans spin for a second then they stop
Please help me !

 

[Ralston18]

My thought is overheating:

Thermal shutdown. CPU gets hot, there is no cooling, so the CPU shuts itself down.

Check the thermal paste. What brand paste did you use and how did you apply it?

And, just for the record, what PSU did you install: make, model, wattage, age, condition?

 

[Bilto]

Hey there and thanks for your reply
All components were brand new and i have a Corsair H150i pro and an RM850x psu
Temperature were absolutely excellent as i told you, i went to sleep with everything working woke up and saw the problem stated above i still have it not fixed
I think it’s the power supply and i called the company to replace it any help would be very helpful