Question CPU getting very hot even under low load, Fans spinning up all the time

[Agent_GoodBoi]

So I have a aftershock (Singaporean custom PC company) AIO, and recently Iv realized that my pc fans rev up really high upon start up and that my cpu stays at around 68 °C - 70 °C in idle with discord opened and my browser but goes up toe the 85 °C range when playing FPS shooters.

I dont know if an AIO can run out of water and weather I need to change it or could mine be broken ?
What are the next steps I should take to help lower my temps ?

Thanks a lot.

Update
PC specs
CPU: AMD Ryzen 9 3900XT
GPU: Zotac RTX 2070 super
RAM: 16GB XPG (dont know the stats)
SSD: C: 500GB 980 pro (samsung) D: 500GB 970 EVO (samsung)
SSD storage: C: drive has 50 GB empty, D: has 100GB empty
Power supply: I think is either 650 or 700 watts silver rated

Water cooling AIO: Aftershock Glacier Mirror 240mm, Its the same model just with a black piece instead of the mirror. Iv had it for 4 years and it was new when I got it.

When it comes to task manages, I presume not to touch any system apps but the only thing that seemed out of place was DLLHost.exe

Thanks for the help

 

[Ralston18]

Update your post to include full system hardware specs and OS information.

PSU: make, model, wattage, age, condition (original to build, new, refurbished, used)?

Disk drive(s): make, model, capacity, how full?

Take a look in Task Manager and Resource Monitor for any unidentifiable or unexpected apps that are being launched at start up.

Also look in Task Scheduler for any apps being triggered when a game is opened.