[D-community-offtopic] A Little Cacophony of Sounds [Long-ish]
hewho7 at gmail.com
Fri Mar 4 20:19:21 UTC 2011
(Possibly an exaggeration.)
However I have never had a laptop make sounds I didn't understand. And, if
the harddrive began making extra noises, I knew to devote all remaining
session time to updating backups.
But my Inspiron 1721 makes weird noises.
1. Mystery Beep
Although this one worries me, I have become accustomed to it.
It does not repeat. It only occurs about once in three sessions. It has
never occurred a second time in a session. It often occurs about an hour
into a session but it has occurred after 12 hours. It first occurred about
2 years ago on a laptop about 3.5 years old.
I have not noticed any associations. It occurs more often when I am typing
away, but it has occurred when the laptop has been idle for long periods.
It is definitely not on my media speakers. But I don't think there is an
It is a high pitched beep. It is very consistent in pitch and
duration--maybe 300 milliseconds in duration. As if from an internal
speaker on some hardware like the old modem speakers.
The frequency is pretty close to this.
2. Burglar on Creaky Stairs.
I assume this is my radiator and thermal tube to my sink/fan assembly. It
is a jumble of casually spaced creaks and snap-ish noises. The first time I
heard it, I spent a good while looking for broken plastic. It doesn't
always happen. As a matter of fact, I haven't noticed much for a few
months, winter. So, cooling system most likely.
3. Tiny Turbine
A mild, small whir noise, rising in pitch like a tiny turbine powering up.
It is a very faint sound. Impossible to hear in a cafe, for example.
Duration is about 2 seconds. But repetition can be crazy, like 3 or 4 times
per minute. Or not so crazy, but it always repeats.
It may not happen with ever session. I haven't paid close enough attention.
But I does not happen throughout the entirety of long sessions. It can come
I may not have noticed it until now because I just moved into a quiet place.
But I can't be sure. I may have noticed it at first and dismissed it as a
harddrive spinning up for some reason, then simply not noticed the
It doesn't correlate with the CPU fan speed or the main fan speed.
Actually, I thought it was a harddrive continually spinning up, which
concerned me, and I tried to verify that for this post. (They are quiet,
I started with the back of this large-ish laptop held to my ear for 5
minutes. Of course, it promptly ended a cycle of repetitions for that
Things were complicated by the fact that this laptop has two harddrives.
I got the back plate off and the main fan had stopped so I was only
listening to the drives and, presumably, the CPU fan. One drive was
noticeably quieter and cooler than the other but I think it, the WD with
Debian on it, just runs that way. I have noticed it running cooler on
thermal monitors. (They are both still obscured by their caddies.)
I hope this computer is going to last me a long time because I am going to
miss its characterisms when it is gone. At least, it has caused me to
contemplate it all the more.
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