Weird PSU/HDD random sounds

[Cosmin1213]

Hey guys!

A few weeks ago I started noticing 2 distinct sounds coming from my PC (I recorded them and attached below), they always come up in this order, 5-10 minutes apart. Sometimes it happens multiple times per day, sometimes maybe once a week, without a specific pattern - it happens while idle/web browsing/gaming. The PC works fine every time this happens, no crashes, bluescreens etc.

 

I've had my current build for around 2 years, without any hardware changes:

- Ryzen 5: 2600X

- MSI B450 Gaming Plus Max

- 2x16GB Corsair Vengeance LPX 3000MHz

- AMD Radeon RX 560

- Thermaltake BM1 500W

 

No BIOS, drivers or Windows updates recently either: Windows 10 21H2 and the stock BIOS (I assume from late 2019-early 2020).

first-sound.flac second-sound.flac

[aaa tech]

2nd sound just sounds like a hard drive spinning up. Drive turns off when idle after enough time to reduce ware.  Cant hear anything in the 1st.

[Cosmin1213]

Yeah, I thought the same about the second sound, except the HDD works fine even before it does that (when it's supposedly off).

Regarding the first one, you can hear it right after my mouse click, around the 1 second mark. It's identical to the sound my PC makes when shutting down, that's why I found it odd.