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Hey guys,

I finished a build with the HT5 just yesterday, would appreciate some advice to bring the CPU temps down a bit if possible. Not sure if this is just an issue with the thermal paste/cooler, or do I need to take drastic steps?


Here's the hardware config:

CPU: Ryzen 5 3400G

Motherboard: Asrock B450 Fatality mini itx

Cooler: Noctua L9x65

RAM: Crucial 2 x DR4 3200

PSU: Mean Well 200W + PicoPSU 160W, both installed inside the case.

Case Fans: 2 x 80mm Noctua Redux


No OS is installed, I let the system idle in BIOS for about half an hour at base frequency (3.7 GHz). The CPU temperature idles around 48-50 degrees,  mainboard around 34-37 degrees.


As I gather, an SFF case usually runs a little warmer than a mid/full tower, and because I mounted the PSU on one of the sides, it may have restricted airflow a little.

Plus the PSU generates its own heat which


I have two questions:

- Do I need to worry about these temps? After the OS is installed I could imagine that the CPU frequency scaling may drive down the temperatures further, depending on the CPU frequency governor. I won't be using the PC for gaming.

- What could I try to achieve better temps, if possible?