MacBook Pro users

A lot of Core Duo laptops do this; the Dell D820 at work does it. The internet suspects there's some shitty caps in the power-retention bit of the Core Duo and that when the CPU goes idle the caps are whining. It might be a matter of engineering tolerances at different Intel plants. Either way, it seems like the kind of thing that would piss me off.

If it's coming out of the screen, that may be a screen inverter issue and you should contact Apple support.

There's a program called QuietMBP which keeps the processor from going idle; this might be helpful to you. Other users have reported that activating and then quitting Photobooth also fixes the issue.

Some MBPs are doing it less than others; call Apple support (free for 90 days with purchase, iirc) and bitch at them anyway to see if they'll replace it. [grin]

What are the first five characters of your serial number, BTW? Week 25 (W8625*) machines seem to be exhibiting this less than others. Check Apple System Profiler to get at the number.

Edit MagicNoiseKiller apparently also works, but I don't know if the new OS update breaks it.

[Edited by - Ravuya on June 28, 2006 2:47:38 PM]

Mine doesn't do it and it's a 12 week one (according to Ravuya's thing)

Quote:

Original post by Maega Mine doesn't do it and it's a 12 week one (according to Ravuya's thing)

It's an issue of manufacturing tolerances. I've seen Week 6 machines without it, and I've seen the very latest, freshly unboxed Dell D820s exhibiting it (but much less terribly).

Just a bump...

Apple admits this is a hardware defect and is apparently putting programs into place to replace the logic board of affected machines -- they're already replacing 1.8GHz MBPs affected by the issue.

I'd recommend contacting your local Apple store and seeing what they'll do for you.