Question Custom built PC locking up and freezing

[Vorthulus]

My custom built PC ( Yes I built it myself and probably messed it up first time builder ) when booted up will slowly over a span between 8 - 10 min will lock up and not respond; can't wake it from sleep, screen still on try to interact / move mouse no response and the only thing that brings it back is a manual pushing of the power button and pressing again to power it back up.

PC is running Windows 10
CPU: AMD Ryzen 5 3600 K
GPU: Nvidia GTX 1660 6GB
C drive: Crucial 1TB Gigabyte M.2
RAM: 32 GB ( 2 x 16 GB ) Corsair
MB : Asus B-450M-A
PSU : Silverstone 650W 80Plus platinum

CPU temps usually when idle at 60c
GPU sits around 35c

I will post more about the problem and build specs if asked.

 

[rgd1101]

check cpu/gpu temp?
brand and model of the psu?

 

[kurdtnz]

Did it say ''Ryzen 3000 ready'' on the motherboards box?

 

[Vorthulus]

Did it say ''Ryzen 3000 ready'' on the motherboards box?

Yes the box does say AMD Ryzen 3000 desktop ready

 

[Vorthulus]

check cpu/gpu temp?
brand and model of the psu?

Silverstone 650W 80 Plus platinum. CPU usually around 60c - 70c , GPU 30c - 40c

 

[Vikengh]

That's really warm. You should double check your heatsink and reapply the thermal paste.