Robert Heller wrote:
> At Wed, 05 Sep 2007 15:33:37 -0500 Ignoramus22620
> <ignoramus22620@NOSPAM.22620.invalid> wrote:
>
>> Something happened on my server that made several processes do
>> intensive computations. (a bug in some of my perl scripts) That loaded
>> all cores of my two dual cored CPUs at 100% CPU. I got these messages
>> in /var/log/messages and a lot of "wall" messages:
>>

>> So I think that Linux saved my ass and switched to modulated clock mode
>> instead of shutting down or burning my CPU. It simply slowed down.
>>
>> Thanks for that.
>>
>> My question is, normally a computer can be very busy and should not
>> overheat. So something physical is wrong. Would you have any idea,
>> maybe I need to replace case fans or the CPU fan?
>
> Very much likely. Fans have bearings that after a time wearout, sieze
> up, and burnout the fan motor. Good old 'entropy' at work here.
>
That's for sure. When I first put together this machine, it worked fine for
about 3 or 4 months, then the cpu fans (temperature controlled) speeded up
to slightly over 6000 rpm. It turned out the main case intake fan had
already seized up though not very old at all. Sleeve bearing type. I put in
a ball-bearing replacement one and it has worked over two years with no trouble.


--
.~. Jean-David Beyer Registered Linux User 85642.
/V\ PGP-Key: 9A2FC99A Registered Machine 241939.
/( )\ Shrewsbury, New Jersey http://counter.li.org
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