Thank you Brian,
Your post gave me a clue I missed!
The backup power supply was making the noise and all I did is to unplug then plug again and everything is back to normal.
Regards,
hallasha
Thank you Brian,
Your post gave me a clue I missed!
The backup power supply was making the noise and all I did is to unplug then plug again and everything is back to normal.
Regards,
hallasha