DIMM Temperatures

Besides the CPU, we also wanted to know how the other components coped with the higher temperatures. First are the Samsung RDIMMs.

DIMMs can operate at up to 95°C, so all the measurements seem to be quite safe.

PCH Temperatures

How about the chipset?

 

The 8W Intel C602J is specified to work at up to 92 °C, so again there is still a lot of headroom left, even with 40°C inlet air temperature. Notice that the CPU used still has an impact on the temperature of the PCH, despite the fact that there is quite a bit of space between the PCH and the CPU heatsinks. The higher performance offered results in the chipset having to work harder as well.

Power Results Conclusion
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  • bobbozzo - Tuesday, February 11, 2014 - link

    "The main energy gobblers are the CRACs"

    Actually, the IT equipment (servers & networking) use more power than the cooling equipment.
    ref: http://www.electronics-cooling.com/2010/12/energy-...
    "The IT equipment usually consumes about 45-55% of the total electricity, and total cooling energy consumption is roughly 30-40% of the total energy use"

    Thanks for the article though.
    Reply
  • JohanAnandtech - Wednesday, February 12, 2014 - link

    That is the whole point, isn't it? IT equipment uses power to be productive, everything else is supporting the IT equipment and thus overhead that you have to minimize. From the facility power, CRACs are the most important power gobblers. Reply
  • bobbozzo - Tuesday, February 11, 2014 - link

    So, who is volunteering to work in a datacenter with 35-40C cool aisles and 40-45C hot aisles? Reply
  • Thud2 - Wednesday, February 12, 2014 - link

    80,0000, that's sounds like a lot. Reply
  • CharonPDX - Monday, February 17, 2014 - link

    See also Intel's long-term research into it, at their New Mexico data center: http://www.intel.com/content/www/us/en/data-center... Reply
  • puffpio - Tuesday, February 18, 2014 - link

    On the first page you mention "The "single-tenant" data centers of Facebook, Google, Microsoft and Yahoo that use "free cooling" to its full potential are able to achieve an astonishing PUE of 1.15-1."

    This article says that Facebook has a achieved a PUE of 1.07 (https://www.facebook.com/note.php?note_id=10150148...
    Reply
  • lwatcdr - Thursday, February 20, 2014 - link

    So I wonder when Google will build a data center in say North Dakota. Combine the ample wind power with cold and it looks like a perfect place for a green data center. Reply
  • Kranthi Ranadheer - Monday, April 17, 2017 - link

    Hi Guys,

    Does anyone by chance have a recorded data of Temperature and processor's speed in a server room? Or can someone give me the information about the high-end and low-end values measured in any of the server rooms respectively, considering the equation temperature v/s processor's speed?
    Reply

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