Re: CPU temperature - was Re: [cobalt-users] RAQ4 Fan

[Gordon Fong <g.fong@xxxxxxxxxxx>]

> From: "Cobalt-Canada" <info@xxxxxxxxxxxxxxxxx>
> To: <cobalt-users@xxxxxxxxxxxxxxx>
> Subject: CPU temperature - was Re: [cobalt-users] RAQ4 Fan
> Date: Wed, 2 May 2001 11:56:51 -0700
> Reply-To: cobalt-users@xxxxxxxxxxxxxxx
> 
> Danny Daniels said...
> Wednesday, May 02, 2001 8:59 AM
> Subject: [cobalt-users] RAQ4 Fan
> 
> 
>> I just noticed the fan on  my RAQ 4 servers has stopped working.
>> The server is less than a year old. Is this comman ? - Danny
> 
> I don't know how long a RaQ 4 fan should last, but kind of related... what
> is the typical CPU temperature of a RaQ 4i? Seems that mine was usually 29º
> but just noticed it at 40º. Not quite enough to cook on, but warmer than
> usual.
> 
> I did check the archives and one person said "usually 31º but now 36º...
> Another said with CPU load of 0, temperature of 29º. Another... CPU load 5.5
> to 7.1 and temperature of 55º." There were also references to room
> temperatures in the archives. A search for "maximum temperature" didn't
> yield any results in the archives. The manual shows an operating environment
> of from 0ºC to 35ºC with 10%-90% non-condensing humidity. With just a quick
> look, I couldn't find any mention in the book about maximum CPU temperature.
> 
> Also... what is the range of the CPU load? Is that a zero to 100 scale?
> 
> Thanks - Arthur

One of our RAQ3i's was prone to locking up now and again. Recently it would
not come back up after a reboot, but after attaching a serial cable I was
able to fsck the partitions and it is fine now.

It made me think that it might have been disk problems causing it to lock up
in the past.

Howver, the last time it locked up, I noticed that fan had slowed down a lot
and as I was trying to move it from one rack to another, the fan kicked back
into action. The fan had been making loud whirring noises occasionally but
would then revert back to silient mode for the most part.

I logged into the GUI and saw that the temperature was 39 degrees. Once the
fan had been running for a few minutes the temperature returned to 25
degrees and can go up to 29 degrees.

The manual says that the operating environment is 0 to 40 degrees. I am
guessing that when our CPU hit 40 and beyond it locked up.

I e-mailed European support via the web site with a request for some spare
fans and they are despatching them now. I recommend that people do like so
at least you have one or two spares around. You need to specify what RAQ you
have as the fans may be different for each.

Gordon.