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当前版本: mayer ,

标题:

iMac has a buzzing noise on the top back left corner

文本:

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?

设备:

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

状态:

open

已接受的回答:

82299

编辑: oldturkey03 ,

标题:

iMac has a buzzing noise on the top back left corner

文本:

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?

设备:

mid 2011 27inch ImaciMac
mid 2011 27inch ImaciMac

状态:

open

已接受的回答:

82299

编辑: bmwbr187 ,

标题:

iMac has a buzzing noise on the top back left corner

文本:

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?

设备:

mid 2011 27inch Imac

状态:

open

已接受的回答:

82299

原帖由: bmwbr187 ,

标题:

iMac has a buzzing noise on the top back left corner

文本:

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?

设备:

mid 2011 27inch Imac

状态:

open