Odd CPU fan issue. Sounds very low pitched when turning on/un-sleeping pc

[Alex Breen]

Hey everyone,

These are my current specs:
AMD FX 4130 3.8 GHz
8GB RAM
Sapphire 7950 GPU
EVGA 600 W PSU
256 GB Intel SSD

So whenever I either, A. Bring my computer out of sleep or B. Turn it on, the CPU heatsink fan makes a really odd low pitched noise. I have found out that I can fix this by unplugging the fan and plugging it back in. If anyone had some input on why this is happening, I would appreciate it.

Thanks so much,

Alex.

 

[IamTimTech]

Sounds like the fan is showing its age.

 

[Alex Breen]

Should I replace it?

 

[IamTimTech]

I'd rather be safe than sorry