Forums
New posts
Articles
Product Reviews
Policies
FAQ
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Menu
Log in
Register
Install the app
Install
Forums
Apple Computing Products:
macOS - Desktop Hardware
27" iMac Hum Resolved
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="VegasGeorge" data-source="post: 1160290" data-attributes="member: 21096"><p>My wife's new 27" iMac was producing a noticeable and annoying low frequency humming sound. At first I thought it was coming from the screen, so I shut that down. The hum persisted. Then I put the iMac to sleep. The hum went away. It came back as soon as the iMac woke up. I had visions of hauling it down to the store for a genius bar appointment, etc. Then I turned the iMac around and put my ear to the back of the case to try to isolate the area where the hum was originating. Imagine my surprise when I didn't hear any hum at all. At first I was confused by that. Then I gently picked up the iMac, lifting it off the counter top on which it was sitting. The hum immediately ceased. The hum came back as soon as I set the iMac back down. So it wasn't an electrical hum at all, it was a hum produced mechanically by vibration propagating from the iMac to the glass counter top. The glass was humming. I put fairly heavy felt pads on the bottom of the iMac stand, and the hum is virtually gone. It's no problem any more. And, I'm sure that a more sophisticated vibration dampening solution would eliminate the hum altogether. Just wanted to share the information.</p></blockquote><p></p>
[QUOTE="VegasGeorge, post: 1160290, member: 21096"] My wife's new 27" iMac was producing a noticeable and annoying low frequency humming sound. At first I thought it was coming from the screen, so I shut that down. The hum persisted. Then I put the iMac to sleep. The hum went away. It came back as soon as the iMac woke up. I had visions of hauling it down to the store for a genius bar appointment, etc. Then I turned the iMac around and put my ear to the back of the case to try to isolate the area where the hum was originating. Imagine my surprise when I didn't hear any hum at all. At first I was confused by that. Then I gently picked up the iMac, lifting it off the counter top on which it was sitting. The hum immediately ceased. The hum came back as soon as I set the iMac back down. So it wasn't an electrical hum at all, it was a hum produced mechanically by vibration propagating from the iMac to the glass counter top. The glass was humming. I put fairly heavy felt pads on the bottom of the iMac stand, and the hum is virtually gone. It's no problem any more. And, I'm sure that a more sophisticated vibration dampening solution would eliminate the hum altogether. Just wanted to share the information. [/QUOTE]
Verification
Post reply
Forums
Apple Computing Products:
macOS - Desktop Hardware
27" iMac Hum Resolved
Top