What is it talking apple so long to create an update for the whine issue?
I think it is pretty ridiculous that the only update apple has released that effects the whine issue, only makes it worse. Even worse is that users over here have managed to detect and resolve the issue before apple has managed to do so. So come on apple, what's taking so long? It's amazing how badly this situation is being handled.
I think its a real shame that Apple haven't been a lot more vocal about it, just to quell the rumours and make those people who are experiencing the problems feel a little more valued customers and more content that the issues are being worked on.
Thankfully I haven't had any problem with whining or mooing on my first edition MBP, it does heat up a little, but its not bad, all laptops heat up, and old PC one I had was much worse for it, and this MBP is signifanctly faster and I use it for
EVERYTHING, so I expect it to warm up a little.
The only issue I do have is with the screen buzzing when the brightness is adjusted. If I set the screen to either full brightness or full darkness, then the sound disappears, but any intermediate setting results in an annoying loud buzz.
I rely on my MBP far too much to send it in for a repair on that issue, and I'm even less inclined on the off chance that I get one back which does whine, leaving me worse off lol.
Anyway I hope they get it sorted for those users who, quite rightly, must be feeling very disappointed right now 😟
PS Am I the only one who notices a connection between all these quality issues, and the fact that we're now using PC components :P
Just so that people are aware...the same whine is on both of my dell laptops (700m - 1.8ghz centrino & 8600 - 2.0 ghz centrino). Neither of them are quite as loud,
....but I am beginning to think it is a standard noise from a centrino processor. Both of the above laptops are single core, which would explain why the dual core may be a bit louder. Perhaps this is something that apple cannot fix as it may just be how the centrino procs are built.
On both of the dells the whine does go away (just as my MBP) when I start crunching numbers or have it plugged in).
The Whine probably originates from faulty CPU batches and is triggered by reducing CPU speed on those cores.
Macbooks would be unlikely to emit the whine while running winXP because the OS doesn't have the drivers to control the CPU speed by default, while your Dells do.
The Whine probably originates from faulty CPU batches
and is triggered by reducing CPU speed on those
cores.
Macbooks would be unlikely to emit the whine while
running winXP because the OS doesn't have the drivers
to control the CPU speed by default, while your Dells
do.
Definitely a powerstepping issue.
Did you think about your post before you made it? CPU'S CANNOT "WHINE." They have nothing in them that can emit the kind of sound you are hearing. The sound you are hearing is caused by the supporting circuitry of the PCB. The components that are causing this whine are linked to the PSU (power supply unit), they differ in frequency and come on and off with work (along with shutting down one core, AC adapter, etc) because the CPU is requiring different amounts of energy at different frequencies. Why is this such a difficult concept for people to grasp?
Nonsense! Neither Windows nor any other software will affect the "whine". And just as a side note for you: The Intel chip has the capability of adjusting it's own power consumption by reducing it's processor speed according to a temperature algorithym, which is detected by a thermistor mounted directly on the die of the chip. It's a "self-preservation" feature (if you will) that throttles the chip back when the temperature gets to high. It's an Intel design feature that has existed since the Pentium 4 series.
The Whine you're hearing is a result of the switching-mode power supply responding to the variations in power demand from the CPU and other ancillary devices.
Agreed, that it should not be there. Honestly I'm surprised that there is anything there operating at a low enough frequency (below ~22KHz) that you can "hear" it. Or perhaps it's a harmonic.
