Article: Cooling and performance/watt

Article: What Do Overclockers and Supercomputers Have in Common?
By: Ed Trice (, June 22, 2011 10:57 am
Room: Moderated Discussions
On the last page of the article, there was mention of "lowering the CPU temperature with liquid nitrogen or a Peltier to around 5C could yield even larger gains" but this is in need of some rephrasing.

We've worked with liquid nitrogen a fair amount, and temps are closer to -200C (see for example).

As for Peltier Cooling, our experience has shown that you can't get more than a 40C difference compared to the ambient temperature. So, it would be much easier for a Peltier device to hit 5C in the winter somewhere cool than in the heat of summer.

Peltier devices are also very inefficient. It costs you about 10 times as much power to remove the "heat equivalent." By that I mean to pull away 50 Watts worth of heat would cost you 500 Watts worth of input power. Clearly, this is not the way to go.
< Previous Post in ThreadNext Post in Thread >
TopicPosted ByDate
Article: Cooling and performance/wattDavid Kanter2011/06/21 12:19 PM
  'temperature' not 'power'?Paul A. Clayton2011/06/21 03:01 PM
    'temperature' not 'power'?David Kanter2011/06/21 03:38 PM
  resistance(temperature)Moritz2011/06/22 04:48 AM
    resistance(temperature)Adrian2011/06/22 05:13 AM
      resistance(temperature)David Hess2011/06/22 08:53 AM
        resistance(temperature)Adrian2011/06/24 02:24 AM
          resistance(temperature)David Hess2011/06/24 02:14 PM
  Article: Cooling and performance/wattEd Trice2011/06/22 10:57 AM
    CoolingDavid Kanter2011/06/22 03:26 PM
      CoolingEd Trice2011/06/22 03:54 PM
      TE-elementsMoritz2011/06/23 05:55 AM
        Radiator placement and designRicardo B2011/06/23 07:34 AM
        TE-elementsEduardoS2011/06/23 04:21 PM
          water/airMoritz2011/06/23 10:30 PM
            water/airRicardo B2011/06/24 02:29 PM
              water/airbakaneko2011/06/24 09:45 PM
                water/airDavid Hess2011/06/25 04:12 AM
                water/airRicardo B2011/06/25 06:07 AM
                  water/airZaZa2011/06/25 09:47 AM
                    water/airRicardo B2011/06/25 11:40 AM
                      water/airrwessel2011/06/26 03:43 AM
                      water/airZaZa2011/06/26 04:05 PM
  Temperature inversionJonathan Kang2011/06/22 05:43 PM
    LN2 overclockingDoug Siebert2011/06/25 01:32 PM
    Temperature inversionVincent Diepeveen2011/06/27 01:01 PM
    Temperature inversionAnon2011/06/28 03:30 PM
      Temperature inversionJonathan Kang2011/07/05 06:38 PM
  Article: Cooling and performance/watt(tm)2011/06/27 05:51 AM
  Article: Cooling and performance/wattDavid2011/10/15 06:14 PM
    Article: Cooling and performance/wattrwessel2011/10/15 09:56 PM
  Exponential growth of subthreshold leakageKonrad Schwarz2011/12/15 07:56 AM
    Exponential growth of subthreshold leakageRohit2011/12/15 01:22 PM
      Exponential growth of subthreshold leakageDavid Kanter2011/12/15 04:20 PM
        Exponential growth of subthreshold leakageIain McClatchie2013/01/07 12:28 AM
          Exponential growth of subthreshold leakageDoug S2013/01/07 10:25 AM
          Exponential growth of subthreshold leakagesomeone2013/01/07 11:12 PM
Reply to this Topic
Body: No Text
How do you spell avocado?