[dimitar]

greetings all,

after 13 months Without a powerbook (Ti stolen overseas)...i got hands on the 17"/rev.b
i have had it for 10 days now.
for all those days, and with substantial use (photoshop/safari/textedit/dvd, etc.) i was Amazed of the great quiet, speed and never-crashing machine behavior. no comparison with Ti...i have had the rev.a/17 for few days in july before it suddenly died..(perhaps bed memory chip..had few dead pixels too) and i feel there is much improvement in comparison to the 17/rev.a as well. i never hear the fan!

BUT:

last night however, after light 20 min. internet use: Unusual/SCREECHING/on and off/ louder and quiter/ SOUND started to come from the right side of the keybord...

right now i hear nothing.
anybody else??

one more thing: the only defect i have detected so far in those 10 days (except the noise scare) is the non-functioning command+ for zoom in files of text or pictures. it does function though on the internet pages.

any ideas for/of the sound?
thank you,

dimitar

[HouseSold]

I believe the only thing mechanical ( if that's the kind of sound you hear) in that vicinity is the CD/DVD drive. Do you hear this sound with or without a disc in the drive?

Occasionally, I will get a click sound, if an inactive disc (not written to or read from for awhile) gets accessed or if the Book is awakened from sleep.

[nagromme]

I've heard reports of the sound too, and am curious as to the cause.

Doesn't the 17" have two fans one on either end of the hinge, in the back? Perhaps some activities use different components more, and thus make a different fan come on? (So one fan is more likely during graphics processing, and another during surfing?) And perhaps the two fans are intended for different situations, and thus have different spin speeds--making the sound unique?

That's the only thing I can think of that would cause such a sound and not be a defect.

[all2ofme]

Isn't this the screeching you get when the video card is doing things? My rev.A 17" does this (it gets worse on anything I access on an https:// address).

Or have I completely missed what you're on about?

[dimitar]

well,

there is nothing in the optical drive.
just totally surprisingly comes on and off...
it does not sound like the fan. as if a tiny "mechanical" creature produces sharp occasional noises...the odd thing is that even after hours of heavy work, is still quiet, and then you boot and in 20 min. - sizzle...?!?

will keep posted,
d

[bcaslis]

This sound is basically electrial activity / RF interference coming from the processor area. Both a rev A 17" and a 1GHz Tibook make these same sounds in the same conditions. For some reason Safari seems particularly able to generate this noise. Curiously, I haven't heard it from a 15" Al yet.