Assistance with my new build

Tech Support

Dear everybody,

Thank you for taking the time to read my post, and I hope you are having an amazing rest of your day!

I will try to be brief so, here goes. I recently have built my first ever Gaming PC, with the following components:

CPU -> AMD Ryzen 9 9900X 12-Core Processor (4.40 GHz)
GPU -> NVIDIA GeForce RTX 5060 Ti (16GB)
RAM Memory -> Corsair Vengeance DDR5, 32 GB, 6000 MHz (EXPO on)
Motherboard -> GIGABYTE B650 GAMING X AX V2, socket AMD AM5
PSU -> Corsair RM850x, 850W, RMx series, fully modular, standard ATX 3.1, Cybenetics Gold
CPU Cooler -> Arctic Liquid Freezer III Pro 360 A-RGB
Thermal Paste -> Arctic MX-7 0.6g
Case -> https://www.progaming.ro/en/carcase-gaming/carcasa-progaming-elite-cube-tower-atx-fara-sursa-7-ventilatoare-argb.html
Monitor -> GIGABYTE G34WQC2

If you need any more information regarding anything else, please let me know and I'll be sure to complete and provide it for you.

I have two main problems, that I am currently facing:

The A-RGB isn't working for any of the fans/pump from the cooler. As you can see in the two photos of the case, neither the radiator fans nor the pump fan are working (lightning), but they are working, as in they cool the CPU and the system in itself.
This would be more like a situation where I would need your advice/opinion. I am new to AMD CPUs and to PC-Building, therefore I don't really know that much about temps. This is kind of the normal temperature that the CPU has in idle. The pattern I can observe is that it spikes for 1 minute to 75-80-95 depending on the load it has, for example, now I have 7 tabs open, then it cools to 60-65 degrees celsius for 1-2 minutes, then spikes again, then cools back. I just wanted to know whether the "idle" temperature is alright, and if this is okay or I should try to reapply thermal paste/ undervolt the CPU.

Thank you so much in advance!

Posted Jul 13, 2026, 4:37 PM UTC