Microphone picks up sound from headset

[Gamestukki]

So like the title says, I'v had this problem with 2x HyperX Could Stinger and 2x HyperX Cloud. There were no problems with my previous headset (Asus Cerberus headset) and when I RMA'd them back to the retailer, they always sent me a new pair, so I thought they were faulty. So I changed from HyperX to Sound BlasterX H5 and still the problem persists.
I've tried:
Reinstalling audio drivers
Adjusting mic volume levels
Disabling every playback and recording device
Plugging headset in front and back of the pc

And I've just couple of weeks ago reinstalled windows because I got an SSD.

So what should I do? Still try RMA the headset or get new mobo or getting a soundcard?

Any advice is appreciated

 

[toshibitsu]

You made sure that "Listen to this device" is unchecked in Microphone Properties?
Control Panel - Sound - Recording - Microphone - Properties - Listen

 

[Gamestukki]

You made sure that "Listen to this device" is unchecked in Microphone Properties?
Control Panel - Sound - Recording - Microphone - Properties - Listen

Yes it is

 

[toshibitsu]

That's really bizarre(and especially since you re-installed a fresh copy of Windows). Perhaps try cleaning out the microphone jack on your system w/ a tooth brush & 90% alcohol? If I had(or could get) another sound card, I'd then try with that.

 

[Gamestukki]

That's really bizarre(and especially since you re-installed a fresh copy of Windows). Perhaps try cleaning out the microphone jack on your system w/ a tooth brush & 90% alcohol? If I had(or could get) another sound card, I'd then try with that.

I used 90% alcohol didn't seem to help. I might order sound card and test it out