Constant Hissing coming from MBP's keyboard area

ntrsfrml

macrumors regular
Original poster
Apr 17, 2006
129
0
Vancouver, Canada
hey guys, has any1 noticed a strong/constant hissing sound coming out of their macbook pro? It's coming from under the keyboard..It goes away when i launch Photobooth app.. Also the hissing pattern changes when i connect the mbp to power adapter.. Has any experienced this w/ their MBP?

Is my MBP's hardware faulty or just a software problem?

thanks!

EDIT: also, are the fans constantly running on MBP's? Mine are always running :(
 

CanadaRAM

macrumors G5
'Booksnake. Serpens pomiferus librii

Preferred habitat nestled in the warm area just under the Macintosh keyboard. Hisses when angry, but unaccountably is calmed by iSight use. Dangerous when full grown, should only be approached by an authorized Apple techician backed up by a full SPCA capture team.

Is usually kept captive in the keyboard mechanism, but may be released by certain key combinations. Whatever you do, don't hit these keys in sequence QPZM......

<aaaaarrrrggggh!>
 

Attachments

ntrsfrml

macrumors regular
Original poster
Apr 17, 2006
129
0
Vancouver, Canada
treblah said:
If you open http://forum.macrumors.com and look in the upper right hand side of the page you will see this white rectangle you can type in. Try typing "macbook whine" and click on the "Search Forums" button. ;)
yes, I'm well aware of the rectangular box and its search powers.. But there is a huge diff between Hissing and Whining.. Oh wait! you prolly don't know the diff cus you don't own a MBP?

Anyways, I googled for some answers and found out very few people have this hissing issue.. The hissing is caused by CPU-2 cus its not doin anything.. Anytime you launch and CPU intensive app for e.g. Photobooth, The hiss goes away...

http://discussions.apple.com/thread.jspa?threadID=387453&tstart=0

The hiss can be prevented if you install developer's tools aka CHUD and turn off the second CPU.. I also found this great article explaining the cause and a temperory solution for it.. This guy developed a pseudo program which constantly uses CPU-2(like 5-10%) of it all the time. This way the hiss goes away, tho you do sacrifice some battery life w/ cpu-2 actvity all the time :(

here is the link to the article and program

http://www.red-sweater.com/blog/105/all-work-and-no-play-makes-a-very-quiet-macbook-pro

Anybody else got this problem w/ MBP and knows a better solution to make it go away?

thanks.

CanadaRam Very funny.. thanks for the useless post?
 

treblah

macrumors 65816
Oct 28, 2003
1,285
0
29680
ntrsfrml said:
yes, he did mention the whinning.. but the article is about hissing.. did you even read it?
It's the same noise with a different name!!!

As sister site TUAW points out, the high-pitched hissing/whining/squealing seems to be associated with an idle processor and does not affect all new MacBook Pros. However it affects enough to have sparked feverish discussion in your choice of Apple-related forums. And as these things go, several “fixes” have been suggested including keeping the Photobooth app running in the background to keep the processors busy, installing/uninstalling certain widgets, and disabling the second core processor altogether.
 

celebrian23

macrumors 65816
Mar 12, 2006
1,186
0
Under the sun
I have the whine connnected to the power adapter, but as don't run my mbp on battery unless I have to, I don't hear it often. My fans aren't on all the time- but they are being quite noisy right now.