New To Mac-Forums?

Welcome to our community! Join the discussion today by registering your FREE account. If you have any problems with the registration process, please contact us!

Get your questions answered by community gurus Advice and insight from world-class Apple enthusiasts Exclusive access to members-only contests, giveaways and deals

Join today!

 
Start a Discussion
 

Mac-Forums Brief

Subscribe to Mac-Forums Brief to receive special offers from Mac-Forums partners and sponsors

Join the conversation RSS
Apple Notebooks Apple's notebook computers including MacBook Pro, MacBook, MacBook Air, PowerBook, and iBook.

MacBook Pro - Mild vibration / buzzing when tilted at certain angle


Post Reply New Thread Subscribe

 
Thread Tools
danimaltron

 
Member Since: Oct 28, 2008
Posts: 7
danimaltron is on a distinguished road

danimaltron is offline
I recently got the last generation MacBook Pro (early 2008) and noticed something kinda odd from the start, but couldn't put my finder on it until tonight.

There is a subtle buzzing or vibration sound coming from the top-right of the keyboard/screen hinge area, if the MacBook is tilted at a certain angle. For example, if the keyboard is angled up about 30 degrees, the vibration can be heard.

At first I thought it was the screen buzzing, but now I can reproduce it when I tilt the whole thing at a very specific angle. If it sits flat, or is at a greater angle, the sound goes away. For the most part it's not there, but I am wondering if there is something wrong with the fan or another part in that area of the laptop that makes this sound when at just the right angle.

Any thoughts on what this might be? Has anyone else ever encountered this problem?
QUOTE Thanks
ADKhikerVW

 
ADKhikerVW's Avatar
 
Member Since: Aug 18, 2007
Location: Wilmington, NY
Posts: 715
ADKhikerVW is a jewel in the roughADKhikerVW is a jewel in the rough
Mac Specs: 15" Unibody MBP (2009), White MB (2009), iMac G4

ADKhikerVW is offline
Hmm.. There is a fan in the top right corner which might be causing the sound. It may be rubbing against something or there might be something caught in there. Is there a disk in the optical drive? I know the drive is in the bottom right hand corner, but it can be hard to pinpoint these kind of noises.
QUOTE Thanks
B&O

 
B&O's Avatar
 
Member Since: May 18, 2007
Location: Brit in Tokyo.
Posts: 745
B&O has a spectacular aura about
Mac Specs: MBP i7, Mac Mini & iPhone 3G.

B&O is offline
Ok it could be a fan or just the HDD.

Simple put the fans up to full speed and then tilt it. If it is louder then it is the fans. If not then it is the HDD. Mine (both MBPs (2007 and late 08) make a noise when I move the computer quickly.

This is why laptop manufactures are pushing SSD to eliminate this problem.

MacBook Pro 2.66Ghz i7. Mac Mini 2.26Ghz C2D
iPhone 3G 16GB iPad 3G 64GB
Check out my flickr
QUOTE Thanks
Desdemonica

 
Desdemonica's Avatar
 
Member Since: May 30, 2007
Location: Newcastle upon Tyne, UK
Posts: 57
Desdemonica is on a distinguished road
Mac Specs: Late 2008 2.4GHz Core2Duo MacBook Pro, 4GB RAM

Desdemonica is offline
I am experiencing the same issue with my new MacBook Pro, but my buzzing is coming from the rear left hand side and is more evident when flat. It is less evident when the fans are at full speed so sounds like it is a wonky fan.

Shall pop into an Apple store next week to have it looked at - the noise is well away from the HDD area however
QUOTE Thanks
pcasso87

 
pcasso87's Avatar
 
Member Since: Oct 16, 2008
Location: Vancouver, B.C.
Posts: 8
pcasso87 is on a distinguished road
Mac Specs: Macbook Pro Late 2008 2.53 ghz/320gb/4gb Ram

pcasso87 is offline
Same problem here i have the 2.53 ghz macbook pro and it makes an anoying noise when you tilt it, think i can get a replacement, or something, i normaly lay down in bed with my laptop tilted and its making the noise all the time, it really bothers me my old macbook didnt make that vibrating noise.
QUOTE Thanks
danimaltron

 
Member Since: Oct 28, 2008
Posts: 7
danimaltron is on a distinguished road

danimaltron is offline
hmmm

def not dvd drive. nothing in there, and sound is much further away. Almost positive now that it is the fan. I can also sustain the sound by holding laptop at specific angle. The weird sound stays until I change the angle.

I wonder what would make a fan sound weird while tilted? I also did some tests, and it has nothing to do with the casing slightly warping/bending. It does it when supported on a flat surface that is tilted.

I guess I'll call Apple and see what they suggest.

This is my first Mac... this sucks.

Thanks
QUOTE Thanks
Desdemonica

 
Desdemonica's Avatar
 
Member Since: May 30, 2007
Location: Newcastle upon Tyne, UK
Posts: 57
Desdemonica is on a distinguished road
Mac Specs: Late 2008 2.4GHz Core2Duo MacBook Pro, 4GB RAM

Desdemonica is offline
I spoke to Apple today and am taking my MacBook Pro to an authorised repair centre locally tomorrow so will see what they say when they look into it.
QUOTE Thanks
danimaltron

 
Member Since: Oct 28, 2008
Posts: 7
danimaltron is on a distinguished road

danimaltron is offline
Desdemonica,

What happened when you took it to apple care?

I don't want to leave my machine for a few days with repair, and I also would rather my casing not getting opened up, but I guess I don't have much choice unless I want to hear this buzzing.
QUOTE Thanks
Desdemonica

 
Desdemonica's Avatar
 
Member Since: May 30, 2007
Location: Newcastle upon Tyne, UK
Posts: 57
Desdemonica is on a distinguished road
Mac Specs: Late 2008 2.4GHz Core2Duo MacBook Pro, 4GB RAM

Desdemonica is offline
I got asked to take it to the nearest Authorised Apple repairer which I will do. The advisor said they were unaware of the issue but said if people were getting this to let them know in case it was a big issue.
QUOTE Thanks
danimaltron

 
Member Since: Oct 28, 2008
Posts: 7
danimaltron is on a distinguished road

danimaltron is offline
Something I just noticed: The vibration sound is coming fro the keyboard. If I tilt the macbook pro to make the sound, but the put a few fingers gently over top of the right side of the keyboard, the sound stops. I can make the sound stop/start by touching or not touching the keyboard while the sound is present.

So it seems to me that my problem is caused by a loose keyboard or something like that. it's not local to any specific key, because I the sound will also stop if I touch the Return, Delete, slash, etc.

Can you see if that is the same on yours?
QUOTE Thanks
counterhit121

 
Member Since: Dec 17, 2008
Posts: 1
counterhit121 is on a distinguished road

counterhit121 is offline
i have the SAME problem as OP. bought my mbp back in september and the buzzing noise occurs on the right side, desists when i alter the angle of the laptop, and can be mitigated when applying light pressure on the front part of the keyboard (near the trackpad).

currently residing in japan (okinawa), however makes it difficult to bring in to the nearest apple retailer. i'm not even sure if there are any on okinawa. i'm 90% sure it's the fan, and strongly considering taking the laptop apart to examine this area. wonder how far i can go without voiding the warranty...
QUOTE Thanks
Desdemonica

 
Desdemonica's Avatar
 
Member Since: May 30, 2007
Location: Newcastle upon Tyne, UK
Posts: 57
Desdemonica is on a distinguished road
Mac Specs: Late 2008 2.4GHz Core2Duo MacBook Pro, 4GB RAM

Desdemonica is offline
Update:

I finally got round to taking my MacBook Pro in to be looked at and it was a faulty fan assembly which they replaced under warranty. They said they had already had quite a few of these new ones in with fan assembly problems.

Had a bit of a surprise to note that apparently the rear screw of the case was held in place by something resembling plasticine as it was missing a small retaining bracket so they fixed that too. Looks like the early ones were a tad rushed out
QUOTE Thanks

Post Reply New Thread Subscribe


« mbp - 512mb 8600m VS 256mb 9600m - which is faster/better? | Slight Unibody defect spotted. Should I worry? »
Thread Tools

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Forum Jump

All times are GMT -4. The time now is 01:17 AM.

Powered by vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
X

Welcome to Mac-Forums.com

Create your username to jump into the discussion!

New members like you have made this community the ultimate source for your Mac since 2003!


(4 digit year)

Already a member?