[cobalt-users] Re: Overheating [on a RaQ550]

["Michelle A. Hoyle" <mahlist@xxxxxxxxxxxxx>]

From: "Stephen Cooke" <s.cooke@xxxxxxxxx>
Date: Fri, 27 Jun 2003 08:32:11 +0100

> I've recently received a number of emails from our Raq550 informing 
> me that the
> box is runnning dangerously hot and I should check the fans.  What's puzzling
> me is the fact that all of the emails have been sent at 1.00 in the 
> morning and
> by 1.15 I have received a second email informing me everythings ok again.
> Anyone have any ideas why I'm getting this strange time-dependent overheating
> pattern (and yes, the fans are working fine)?


Hi Steve.

Our RaQ550, in a temperature-controlled NOC, does this quite often, 
too.  Some days are worse than others.  It even was doing it when we 
only had a test site and nothing else on the machine and nobody was 
using the test site.  I think it might have a flakey temperature 
sensor or something.

Another odd thing is that I run a special version of MRTG software 
modified to report various things about Cobalt RaQs, including the 
temperature.  On my RaQ4, this also worked flawlessly.  On the 
RaQ550, the number reported back from the MRTG is always lower than 
what's reported in the /proc directory.  The strange thing about that 
is that the MRTG script is getting this information from the same 
place.  <perplexed>

Anyways, if you figure it out, I'd like to know, because I find it 
somewhat worrying as well although I've been ignoring the message 
since all seems well.

Michelle