I've just upgraded my Lenovo Z500's RAM to 2x8GB a few days ago and while doing that I've cleaned the fan as well. After that the fan started rattling although at random times it just becomes quiet. I don't know how many times I've opened it again to check whether it was touching something, I couldn't find it. So my conclusion was that there is a problem with the fan itself.
I want to change the fan but I don't know what specs I am supposed to look for.
This rattling sound is unbearably annoying. Below is a picture of the fan I took. Here is the hardware maintenance manual but I could only find
VIWZ2 Fan listed in the parts list. This might probably be difficult to find as this laptop is around 8 years old.
Could you please help me?