How to get rid of microphone noise? What could be the problem?

Question

Audio

I have already tried 3 microphones - from the cheapest one for 150 rubles to the studio one for 2 k. The problem is the same - I can either hear very quietly (if you cut off the gain) or the microphone is too noisy. (if you turn on the gain).
And I listened to examples of voice recording from these microphones - there is no such noise ...
I have 2 audio cards - 1 built-in from Gigabyte GA-Z77-D3H, and the other - Sound Blaster X-Fi Xtreme Audio.
There is noise here and there, although the Sound Blaster is slightly less - since there is no amplification at all.
The funny thing is that the last microphone - sven mk-490 has a micro off button. So, if you press it, the noise still remains, only voices are not heard.
Of course, I updated all the drivers ...
What could be the problem?

Answer 1

Aiming at the wires, noise from the system unit.
Try a USB microphone.

Answer 2

Buddy. Buy yourself a preamp for a microphone or do it yourself