Question Tried every think. Need help please

[MrHowardy]

I started getting audio static/interference though my headphones just after the bios screen shows on start up. it also can be heard though the mic. I have had a soundblaster z card for a long time now and thought it could be that so removed it from the system and tried the on-board audio and it was the same static/interference but even louder. I the purchased a Sound Blaster Omni and it has the same issue. I do not know what to try to fix it.

My System

Operating System
Windows 10 Pro 64-bit
CPU
Intel Core i7 6800K @ 3.40GHz 26 °C
Broadwell-E/EP 14nm Technology
RAM
16.0GB Unknown @ 1333MHz (16-18-18-36)
Motherboard
ASUSTeK COMPUTER INC. X99-A II (SOCKET 2011) 32 °C
Graphics
ZOWIE XL LCD (2560x1440@144Hz)
G246HL (1920x1080@59Hz)
3071MB NVIDIA GeForce GTX 1080 Ti (EVGA) 55 °C
Storage
1863GB Seagate ST2000DX002-2DV164 (SATA ) 36 °C
931GB Western Digital WDC WD10EZRX-00A8LB0 (SATA ) 34 °C
232GB Samsung SSD 960 EVO 250GB (Unknown (SSD))
Audio
Sound Blaster Omni Surround 5.1

 

[jeremyj_83]

Have you tried resetting all the audio cables in the back of the computer?

 

[MrHowardy]

yep used different headphones and mics. all the same.

 

[geofelt]

Since you have the same problem with 3 different sound adapters, look elsewhere.
I might guess the PSU ,motherboard, HDD in that order.

 

[MrHowardy]

It’s not the psu or drives just tested them. Is there a way to test the board without a spare? As it’s a pricey item to replace when I am not %100 sure

 

[geofelt]

It’s not the psu or drives just tested them. Is there a way to test the board without a spare? As it’s a pricey item to replace when I am not %100 sure

How did you test?
Did you try a known good psu?
Did unpowering the drives do any good.

An extra possibility might be the monitor.
Some of them will give off radiation.
There are magnetic clamps for power cords that might do something.

 

[MrHowardy]

I have a good psu I used in another system. And I removed all the drives and used a spare one.

This is probably nothing but I have a nest outdoor camera and the same sound can be heard on that when it’s quiet out.

 

[geofelt]

Have you had your house power supply checked?
Perhaps there is something amiss there.
Hearing the same sound on a different device would lead one to think it was not the motherboard.

If your power supply is suspect you could buy a UPS that will condition the power going into your pc. Not a bad idea if you have power glitches.

 

[SgtScream]

Try a different power outlet.