Maximum room temperature

Steven Timm timm at fnal.gov
Mon Apr 22 17:58:21 EDT 2002


On Mon, 22 Apr 2002 alvin at Maggie.Linux-Consulting.com wrote:

>
> hi ya manel
>
> if your systems have "health monitoring"...
> check your bios to see what it thinks is your
> current system temp and cpu temp...
>

Am I missing something here?  The BIOS sensors can only
tell you what the temperature is when the machine is
effectively idle.  A good CPU load can be good for an
increase of 7-10 degrees C.

>
> you're cpu reliability/performance goes down
> by 1/2  for every 10 degree C
> 	- ie  if it would have lasted 5 more years...
> 	( starting temp is "normal/nominal  temp" as provided
> 	( by intel or amd that they provide a cpu warranty for 5 years
> 	- if temp went up another 10deg C... its now 2.5 yrs
> 	- it temp went up 20 degree.... its now 1.25yrs...
> 	- or some silly guidelines like that..
>
> to test if the ambient temperature is too high...
> 	- add a regular fan and blow air on it...
>
> 	- if the cpu temp drops significantly...
> 	than its too hot in the room
>
> max cpu temp...
> 	http://users.erols.com/chare/elec.htm
> 	http://www.heatsink-guide.com/maxtemp.htm
>
> -- add lm_sensors to your "distro" to read the cpu temp

Does anyone have success yet with making
lm_sensors work on the Tyan 246x series of dual AMD motherboards?

>    and if it gets too high... shutdown the server
>    or at least dont do heavy computations on it
> 	- add more fans ... and better air flow...
>
> c ya
> alvin
> http://www.Linux-1U.net/CPU .. more specs ...
>
>
> On Mon, 22 Apr 2002, Manel Soria wrote:
>
> > I'm wondering what is the maximum reasonable ambient
> > temperature to have in a cluster room. In our room
> > with 72 nodes we have about 29-30 oC (84-86 oF).
> > Is this too high ? Can this be the cause of hardware
> > failures ?
> >
>
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