SLCentral - Your logical choice for computing and technology
Latest Deals   
Various options regarding this article
Discuss This Article
Print This Article
E-Mail This Article

  • Home
  • Search
  • Forums
  • Hardware
  • Games
  • Tech News
  • Deals
  • Prices
  • A Guru's World
  • CPU/Memory Watch
  • Site Info
  • Latest News
    Corsair TX750W Power Supply Unit Review
    Businesses For Sale
    Shure E530PTH Earphones Review
    Guide to HDTVs
    Cheap Web Hosting
    >> Read More
    Latest Reviews
    Corsair TX750W Power Supply Unit - 4-/-0/2008
    Shure E530PTH Earphones - 9-/-0/2007
    Suunto T6 Wrist Top Computer - 1-/-0/2007
    Suunto X9i Wristwatch - 9-/-0/2006
    Shure E3g Earphones - 5-/-0/2006
    >> Read More
    SL Newsletter
    Recieve bi-weekly updates on news, new articles, and more

    Scythe Co NCU-1000 Heat Sink
    Author: Matt
    Date Posted: July 7th, 2003
    SLRating: SLRating: 6/10
    Bottom Line: Scythe Co. and TS Heatronics have sent us their Heatlane NCU-1000 passive heatsink for review, come find out if this innovative heatpipe-like CPU cooler has the right stuff to keep things cool under pressure in our official review...

    Find the lowest price for this product
    Pages: 1 2 3 4
    >> Discuss This Article


    While there are usually no great expectations from passive coolers, I was optimistic with the NCU-1000 because of its unique technology, huge size and the claims from its manufacturer: TS Heatronics. As it turns out, Scythe Co. is not the company that makes the NCU-1000, they merely distribute it.

    The manufacturer's claims follow:

    These are the system specs and ambient temperatures:

    CPU : Intel Pentium 4 2.8GHz
    Memory : DDR-SDRAM 512MB
    Motherboard : GIGABYTE GA-8GEM667K
    OS : Windows ME
    Thermometric software : MBM5
    Outside Ambient Temperature (OAT) : 20C
    In-case temperature : 24C (before bench marking, measured by sensor)
    Power Supply : AOpen Strong Power 400W
    PC Case fan : Nil

    These are my results:

    And these are my system specs and ambient temperatures:

    CPU : Intel Pentium 4 2.53GHz
    Memory : DDR-SDRAM 1024MB
    Motherboard : ABIT IT7-MAX2 v2.0
    OS : Windows XP Pro
    Thermometric software : MBM5
    Outside Ambient Temperature (OAT) : 23C
    In-case temperature : performed on workbench
    Power Supply : Antec TruePower 430W
    PC Case fan : Thermaltake case fan, 32CFM (for active test)

    As you can see there appears to be some discrepancy. My ambient temperature is colder (air around their heat sink was 24C, air around mine was 23C) and my CPU dissipates less thermal power (6.9W less), but my measure temperatures are significantly higher. While there are numerous factors that could account for a small degree difference, such as thermal paste (I used Arctic Silver 3), poor mounting against the CPU (I checked and there was full contact) and inaccurate thermal sensors, I feel that none of these could account for the margin between my results and the claimed results. I believe a possible cause of the discrepancy could be a difference in airflow through and around the heat sink in our varied testing environments, because as I show later the NCU-1000 works much better actively cooled.

    It was just pointed out to me that I am an idiot. I was not careful in my examination of the manufacturer's claimed results so I did not notice that the temperatures on the graph are adjusted to not include the ambient temperature. That explains the exceptionally low temperatures. I have updated my results graph to more accurately reflect the relationship between my temperatures and TS Heatronics's temperatures. I appologize for any undue conclusions I came to and for any confusion I caused.

    When I first turned on the computer, the initial temperature recorded by Motherboard Monitor was 45C, as I let the computer sit under 0% CPU load the temperature gradually began to rise during a 45 minute period up to a steady stopping point of 55C. I can only assume that the working fluid could not circulate fast enough to release the heat off into the environment so it became saturated, only finally reaching equilibrium at 55C. It must be noted that there was negligible airflow in my testing environment, which could partially explain my higher temperatures. While under Prime95 load, the temperatures shot up so quickly that I feared for my P4 and stopped the test at 60C.

    After passive tests I decided to give the NCU-1000 a whirl while actively cooled to see if it performed any better. I used an 80mm Thermaltake case fan that puts out 32CFM at 2050rpm. The results indicate that it performed better than while passively cooled, as to be expected. From what I remember, these numbers seem about on par with how well my P4's retail heat sink performed. With a good high CFM 120mm fan and some creativity you might have a half decent HSF unit.

    With the passive tests not producing favorable results, I can only recommend the NCU-1000 if you have decent airflow in your computer case. Even then though I would have to only recommend the NCU-1000 to those who do nothing more than light computer work.

    Perhaps the most interesting thing about the NCU-1000 is that the "working fluid" actually worked very well. While it did not cool the CPU effectively while passive, it did transfer heat to the top of the heat sink very well, in fact the top of the heat sink was hot to the touch. This is not often the case with regular heat sinks, as the heat does not transfer well radially throughout the sink.

    I do not doubt that a heat sink fan unit with the Heatlane would work very well to spread out the heat and cool the processor, so I look forward to such a product geared for the PC market in the future.

    The innovative Heatlane technology was very intriguing and most impressive in its operation, however its implementation in the NCU-1000 form left something to be desired. For Scythe Co and TS Heatronics' cool technology but unimpressive performance I give the NCU-1000 a 6/10.

    SLRating: 6/10


    Introduction Go the the next page
    Article Options

    Post/View Comments   Post/View Comments
    Print this article   Print This Article
    E-mail this article   E-Mail This Article
    Article Navigation

    1. Introduction
    2. In The Box
    3. Installation
    4. Performance

    If you liked this review, you may like...

    SLite-On CD-RW/DVD Drives Review

    Maxtor 5000DV External Hard Drive Review

    Maxtor DiamondMax Plus 9 Internal Hard Drive Review

    Browse the various sections of the site
    Reviews, Articles, News, All Reviews...
    Reviews, Articles, News...
    Regular Sections
    A Guru's World, CPU/Memory Watch, SLDeals...
    Forums, Register(Free), Todays Discussions...
    Site Info
    Search, About Us, Advertise...
    Copyright 1998-2007 . All Rights Reserved. Friday 07th August 2020 04:42 PM Legal | Advertising | Site Info