Ryzen 5 5600 CPU fan running loud at idle (~1600 RPM), temperatures seem normal
Hey, I recently got a PC with a Ryzen 5 5600 and an MSI A520M-A PRO motherboard.
My main issue is that the CPU fan is really loud, even when I'm basically idle.
My temperatures are:
- Idle: ~40–49°C
- Gaming (Valorant, ~40 minutes): ~60–70°C
- CPU usage while idle: ~2–5%
- CPU fan: ~1600–1650 RPM even at idle
HWiNFO also showed the CPU temperatures are normal, with no obvious overheating.
In BIOS, under Hardware Monitor, CPU Fan 1 is around 1640 RPM. Smart Fan Mode is enabled. System 1 shows 0 RPM, although I'm not sure if that's because nothing is connected to that header.
The motherboard only gives me PWM as the fan-control mode.
I've tried making a custom 4-point fan curve and saving it, but the fan still stays around 1600 RPM at idle.
Is this normal for the Ryzen 5 5600/stock CPU cooler, or is there something wrong with the fan/BIOS settings? What would be the best way to lower the idle fan RPM without affecting safe CPU temperatures?
I've attached screenshots of my BIOS fan curve, MSI Center, and HWiNFO temperatures.
Posted Aug 13, 2026, 8:40 PM UTC