I recently purchased an original 17" 2.16 Ghz MacBook Pro with the whine/hiss problem (unknown to me before the purchase). At first, I thought it was coming from the hard drive, so I purchased and installed a new 320GB drive - that didn't fix the whine. After some additional searching, I found this, installed it, and it works PERFECT (no more whine, normal processor usage, both cores operational). Thank you, thank you, thank you!
[Version 1.0]
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Magican File
Kerbz rated on 09 Oct 2011
[Version 1.2.0]
ShhMBP