Funny noises: drive or fan? With MP3s!

muaythai

macrumors member
Original poster
Aug 3, 2009
39
0
15" MacBook Pro has been making funny noises. I recorded these two MP3s using the external mic and Audacity:
http://dl.dropbox.com/u/283061/noise01.mp3
http://dl.dropbox.com/u/283061/noise02-highcpu.mp3

Obviously they sound a bit more amplified than what you would hear if you were in front of the computer, as the mic is located on the machine... Anyway, it's bad and I need to know if it's the drive or the fan and there's no Apple store where I live. So, what do you think??
 

riptideMBP

macrumors 6502
May 29, 2011
260
0
Its kinda hard to tell without being with the actual machine. The hard drive is located under the right palmrest, so if you put your ear directly on the palmrest, you should easily be able to discern whats going on.
 

muaythai

macrumors member
Original poster
Aug 3, 2009
39
0
Thanks for the reply- I'll try to locate exactly where the sound is coming from.
 

jjnguy

macrumors newbie
May 24, 2012
1
0
That sounds like it is a fan. If your hard drive was spinning at those different frequencies and making those sounds you would most likely be having much worse problems.

Also, your HDD probably wouldn't be spinning up in time of high CPU usage. However, your fans most definitely will in order to cool off the CPU that generates way more heat under high usage.
 

muaythai

macrumors member
Original poster
Aug 3, 2009
39
0
Yeah, more and more I'm thinking it's the fan b/c hard drives sound different, and the sounds don't change or get more dramatic as the CPU cycles increase.

I'll be getting a new logic board when I go back to the US in a month- are the fans built into the logic board or are they entirely a different compoonent?

Thanks!
 

snaky69

macrumors 603
Mar 14, 2008
5,904
484
Yeah, more and more I'm thinking it's the fan b/c hard drives sound different, and the sounds don't change or get more dramatic as the CPU cycles increase.

I'll be getting a new logic board when I go back to the US in a month- are the fans built into the logic board or are they entirely a different compoonent?

Thanks!
They are screwed onto it then plugged in, they are real easy to remove. Fans sound that way when they're dying.
 

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