On Thu Apr14'22 10:33:45AM, Andras Simon wrote:
From: Andras Simon <szajmi(a)gmail.com>
Date: Thu, 14 Apr 2022 10:33:45 +0200
To: Community support for Fedora users <users(a)lists.fedoraproject.org>
Reply-To: Community support for Fedora users <users(a)lists.fedoraproject.org>
Subject: Re: OT: laptop SSD(?) makes screeching sounds
2022-04-14 4:03 UTC+02:00, Ranjan Maitra <mlmaitra(a)gmx.com>:
> There is no DVD. It is possible that it is the fan, and that is my suspicion
> but I can not tell. It does happen only when there is some sort of activity
> in the disk. This is not the usual mild rattling sound that happens almost
> all the time, but screeching at times.
What happens if you exercise the processor for minutes with something
that doesn't involve I/O?
So, I tried this for several minutes. Basically, what I did was used R to simulate three
billion pseudo-random realizations. Did not store the ouput or even put it on the screen.
Piped it to system.time so that I did not get output at all. Anyway, the fan went on
normally. It took 179 seconds.
Used in R;
system.time(rnorm(3e9))
However, while writing this email in mutt (which involves some IO), the fan ended running,
and the screeching is back and continues on even though the fan does not appear to be
running.
Many thanks and best wishes,
Ranjan