Today while I was cleaing the back of the PC, I hear very very faint hissing type of noise from inside the psu.
I thought it was the power cable issue so I changed it out to a Corsair UK flat type cable but still I hear a very very faint hissing.
The psu switch is flipped off and the sound still comes. It only goes away if I pull the power plug entirely.
The sound can be heard only if I put my ears against the exhaust of the psu.
Note: The PSU switch is off but mains power is on and the cable is connected. Only PSU is connected and all other appliances in the vicinity are off. PSU is connected to the UPS which is also brand new APC 1100Va unit.
I thought it was the power cable issue so I changed it out to a Corsair UK flat type cable but still I hear a very very faint hissing.
The psu switch is flipped off and the sound still comes. It only goes away if I pull the power plug entirely.
The sound can be heard only if I put my ears against the exhaust of the psu.
Note: The PSU switch is off but mains power is on and the cable is connected. Only PSU is connected and all other appliances in the vicinity are off. PSU is connected to the UPS which is also brand new APC 1100Va unit.