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Thread: Dual Loop versus Single, the facts

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  1. #19
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    You can easily increase heat dissipating area as in rads with no limits to their size/mass and distance from cooled area unlike limited by those accounts classic air cooling.
    I guess the problem I have with people comparing the real surface area of aircooling with that of watercooling heat-exchangers is a simple one - there can be no direct comparison, as water has that much higher efficiency in absorbing/carrying heat than air does. So, in practice, you will need a significantly smaller area, if airflow remains the same, to keep the CPU/GPU at the same temperature level.

    Quote Originally Posted by basserdan
    Keep it below that temp and you can keep the extra mhz.
    Yep, seen that too, even goes the same for phase-cooling, where you will eventually hit the ceiling anyway. I was only pointing out that with average WC, compared to extremely good, high-end and very expensive WC, there are only very small gains to be had -> to realise the CPU's max potential, we have to revert to drastic measures, which is economically non-viable, as well as not to practical, as 24/7 under sub-dewpoint temps brings its own issues.

    Nice debate though, appreciate your input and feedback.

    Of course, sometimes big rads are just better to use, becuase it suits a particular mod, or you want to run your system in near-passive, absolute silent mode, I can see the point - but, like my Blackbird case, you're forced to a maximum of 240mm, maybe, a 280mm rad, and it's good that it still does the job, at moderate sound-levels.

    Quote Originally Posted by rge
    I dont really care about the 6C discrepancy (plus im using 360 rad) from error/different power/full cover or not.
    One thing I should point though, this Blackbird case is a real heavy aluminium monster, with massively thick panels, acting as heatsinks. I have specifically focussed my roject to have the rad transfer heat into the case itself, which I suspect contributes to my low deltas. To put it in perspective, this system, must weigh in close to the 30-35kg range, so there is a huge metal structure assisting with cooling, as there is direct metal-metal contact with the rad.

    I refer to this statement:

    Quote Originally Posted by stephenswiftech
    Water doesn't loose its physical properties with heat load. Heat load tends to increase water temperature but if you have a system that can maintain your water temperature at a decent level, it doesn't matter how much heat load is going through, water still has the same properties.
    The point I tried to raise earlier was the heatload your system will be comfortable and stable with at 24/7 operation is at much higher levels than what we think it is I have also stated whatever works for your application, is what you must use - if you need absolutely the last drop of OC capability from your system, in WC format, so be it, then go for it, no prob with that. Then you fall outside the 95% group I mentioned earlier - most people will not want to OC to the brink of instability though, hence my comment of earlier.

    I've been there, done that, it's captivating, fun, and awakens that competitive tiger slumbering in most of us.

    As a final word, I just got to the point 5 years ago, after spending a huge number of hours overclocking, tweaking, voltmodding, running bench after bench, that I realised no form of WC is good enough to bring you even close to the top 10 in FM Top10, but, it is abolsutely the best for quiet, 24/7 operation, at least for my application and requirements.

    Talk later.
    Last edited by MrBean; 12-02-2011 at 01:22 PM.
    Never argue with Idiots...they will drag you down to their level and beat you with experience!
    i-Prodigy (small APD2 GFX/CPU waterloop) ; HP Blackbird Project Log (dual-Xeon Watercooled) ; Macho Mini Project Log (Sandybridge watercooled mini-ITX)

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