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Subject: Re: Do they put thermocouples on CPUs?

Author: Robert Hyatt

Date: 19:34:06 10/25/02

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On October 25, 2002 at 17:52:56, Roy Eassa wrote:

>On October 24, 2002 at 23:24:45, Robert Hyatt wrote:
>
>>On October 24, 2002 at 12:49:40, James T. Walker wrote:
>>
>>>On October 23, 2002 at 22:13:38, Bob Durrett wrote:
>>>
>>>>Do they put thermocouples on CPUs?  How to tell if CPU getting too hot?  Surely
>>>>not by opening up the case and sticking your hand in there?
>>>>
>>>>Bob D.
>>>
>>>Some new motherboards come with two thermal sensors and the software to monitor
>>>the cpu temp and the system temp.  Thermocouples are not the only way to monitor
>>>temp so it could be that or something similiar.
>>>Jim
>>
>>
>>My Intel box, with a real intel serverboard, has a lot of sensors.
>>
>>Thermocouples for the processors, voltage sensors, tachometers on all
>>eleven fans, etc...
>>
>>The 98-104F temps are with crafty running full-bore...
>>
>>Pv+ is processor voltage, L2v+ is the L2 cache voltage.  The
>>other voltages should be pretty obvious.  All the fans (1-11)
>>are RPM values.
>>
>>
>>      temp    Pv+   L2v+
>>cpu1   98F   +2.5   +2.0
>>cpu2   98F   +2.5   +2.0
>>cpu3   98F   +2.5   +2.0
>>cpu4  104F   +2.5   +2.0
>>fans  (1)3180  (2)3000  (3)3180  (4)2640
>>(rpm) (5)2760  (6)2880  (7)2970  (8)2670
>>      (9)2550 (10)2550 (11)2580
>>power +1.5V(+1.5) +2.5V(+2.5) +3.3V(+3.4)
>>      +5V(+5.3) +12V(+12.0) -12V(-12.3)
>
>
>I know you're American (as am I), but I thought CPU temperatures were quoted in
>Celsius as a standard.  Somehow it looks strange to see them in Fahrenheit.
>
>Anyway, it looks like 3 of your CPUs are like healthy humans and the 4th one has
>a pretty bad fever.


Remember that I wrote the program to display this stuff.  The thermocouple
values are well-known and I chose to map 'em to F rather than C.  :)

one of the CPUS (the bottom one) doesn't quite get as much air as the rest,
but those numbers are consistent for running crafty, and well below Intel's
specs so I don't worry.  :)



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