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Current version by: mayer ,

Título:

iMac has a buzzing noise on the top back left corner

Text:

I have a mid 2011 27inch Imac 3.4 GHz , i7 ,8GB. Recently there has been a buzzing noise that comes out the top back left corner. when i increase the brightness of the screen the buzzing noise becomes louder when I decrease the brightness the noise stays the same.

I have seen youtube videos of people recording the buzzing noise and some say it is a faulty power supply or the LED driver board.

Has anyone heard about this? and if so where could the noise be coming from?

dispositivo:

iMac Intel 27" EMC 2429
iMac Intel 27" EMC 2429

Status:

open

Accepted Answer:

82299

Edit by: oldturkey03 ,

Título:

iMac has a buzzing noise on the top back left corner

Text:

I have a mid 2011 27inch Imac 3.4 GHz , i7 ,8GB. Recently there has been a buzzing noise that comes out the top back left corner. when i increase the brightness of the screen the buzzing noise becomes louder when I decrease the brightness the noise stays the same.

I have seen youtube videos of people recording the buzzing noise and some say it is a faulty power supply or the LED driver board.

Has anyone heard about this? and if so where could the noise be coming from?

dispositivo:

mid 2011 27inch ImaciMac
mid 2011 27inch ImaciMac

Status:

open

Accepted Answer:

82299

Edit by: bmwbr187 ,

Título:

iMac has a buzzing noise on the top back left corner

Text:

I have a mid 2011 27inch Imac 3.4 GHz , i7 ,8GB. Recently there has been a buzzing noise that comes out the top back left corner. when i increase the brightness of the screen the buzzing noise becomes louder when I decrease the brightness the noise stays the same.

I have seen youtube videos of people recording the buzzing noise and some say it is a faulty power supply or the LED driver board.

Has anyone heard about this? and if so where could the noise be coming from?

dispositivo:

mid 2011 27inch Imac

Status:

open

Accepted Answer:

82299

Original post by: bmwbr187 ,

Título:

iMac has a buzzing noise on the top back left corner

Text:

I have a mid 2011 27inch Imac 3.4 GHz , i7 ,8GB. Recently there has been a buzzing noise that comes out the top back left corner. when i increase the brightness of the screen the buzzing noise becomes louder when I decrease the brightness the noise stays the same.

I have seen youtube videos of people recording the buzzing noise and some say it is a faulty power supply or the LED driver board.

Has anyone heard about this? and if so where could the noise be coming from?

dispositivo:

mid 2011 27inch Imac

Status:

open