[cobalt-users] Server slowing down...... FIXED

[Paul Donovan <cobalt-users@xxxxxxxxxxxxxxxxxxxxx>]

Hi All,

The discussion about the CPU getting busy, and things going weird.  I 
solved it on my RAQ4i today.

I noticed the temperature had risen since yesterday from 58 to 67 
degrees.  So I rushed down to my COLO and took a look and found that 
both cooling fans were bad, one was stopped and the other was running 
rough.  I cracked open the case, pulled out the cooling fans and left 
the cover open while I ran to the local store to get replacements.  I 
couldn't find 3.5 cm cooling fans so bought two 4cm fans and 
wire-wrapped them on the back of the server over the holes.  While 
the cover was off the temperature went down to 45 degrees.  Once I 
got the fans working and the cover on the temperature has dropped to 
about 30 degrees.

What is even more interesting is the fact that with the drop in the 
temperature the CPU load went from a high of about .5 to .6 down to 
.33 and last I checked was running at .2 .  And I am following the 
traffic flow through my port at the COLO and my traffic has also 
dropped considerably.

I appears that the higher temperatures was creating higher CPU 
activities which created higher temperatures which .....  And that 
seems to be the reason that services were shutting down, and the 
server was locking up.

I'm monitoring the server for a few days but hope that I've solved 
the problem.  Two $8 cooling fans did the job.  I'd still like to 
find the proper size ones and get them installed inside.  But for now 
I've got a 'cool' server and things aren't crashing.

Hope this is of help to those with similar issues.

Paul Donovan
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