l i n u x - u s e r s - g r o u p - o f - d a v i s
Next Meeting:
July 7: Social gathering
Next Installfest:
Latest News:
Jun. 14: June LUGOD meeting cancelled
Page last updated:
2009 Feb 17 22:21

The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

Report this post as spam:

(Enter your email address)
Re: [vox-tech] powersupply + capacitor whine when CPU is idle
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [vox-tech] powersupply + capacitor whine when CPU is idle

On Monday 16 February 2009, jim wrote:
>    i've never heard capacitors make noise and am
> interested to know if that happens. my guess is
> the noise is coming from a fan, either in the
> power supply itself, or in the case, or on the
> heatsink of the CPU, or...

The funny thing is that only some people can hear the whining sound. Only 
seems to be younger people (better hearing?).

>    odd that the noise goes away when the CPU is
> busy: maybe the CPU heatsink fan smooths up when
> there's heat (frame or spindle alignment changes)?

Yeah, I can't figure that one out...

>    if the power supply breaks down, it may damage
> data on your hard drive (i've seen multiple
> lost+found directories nested because of the
> jitters of a dying power supply--a big mess to
> recover).

OK. Hopefully the new one is on the way!


> On Mon, 2009-02-16 at 13:25 -0800, Dylan Beaudette wrote:
> > Hi,
> >
> > My powersupply (I think) is making a deafening whining, reminiscent of a
> > capacitor on its last legs. I notice that when the CPU is busy, the whine
> > goes away.
> >
> > Any clues on what could be causing this besides a faulty power supply? I
> > have ordered a new one just in case.
> >
> > Cheers,
> >
> > Dylan

Dylan Beaudette
Soil Resource Laboratory
University of California at Davis
vox-tech mailing list

LUGOD Group on LinkedIn
Sign up for LUGOD event announcements
Your email address:
LUGOD Group on Facebook
'Like' LUGOD on Facebook:

Hosting provided by:
Sunset Systems
Sunset Systems offers preconfigured Linux systems, remote system administration and custom software development.

LUGOD: Linux Users' Group of Davis
PO Box 2082, Davis, CA 95617
Contact Us

LUGOD is a 501(c)7 non-profit organization
based in Davis, California
and serving the Sacramento area.
"Linux" is a trademark of Linus Torvalds.

Sponsored in part by:
Sunset Systems
Who graciously hosts our website & mailing lists!