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A TOASTER!!!

  • edu1966 Saturday, December 18, 2010 7:31 PM Reply
    I love my K330 NAS (after installing SNAKE!), but You will notice that it gets hot like hell after some minutes in operation. For sure it may cause operation errors and will reduce the life span of the main components.

    I´d like to show You a very easy and small hack to protect NAS internals from excessive heat using some components sold here in DX.

    First of all You must improve the ridiculous case vents. You can do that using a 2mm drill enlarging the holes as in picture bellow (Please, You must remove the four screws and open the case before that :D)


    http://lh3.ggpht.com/_rG7phYpHfqI/TQ1Wpdpc34I/AAAAAAAAAB8/tEuacWfG3SI/SDC11253.JPG
    img src: http://lh3.ggpht.com/_rG7phYpHfqI/TQ1Wpdpc34I/AAAAAAAAAB8/tEuacWfG3SI/SDC11253.JPG



    And now lets improve cooling of the main component and the most responsible for the heat. It is the cns2132 (or str8132) chip set. I think it is not necessary to do the same with the other chips (cpu and memory). Do that if You care.

    Lets use a heatsink and a thermal glue for that. sku.35817 http://www.dealextreme.com/details.dx/sku.35817 and sku.37514 http://www.dealextreme.com/details.dx/sku.37514 fit nicely:


    http://lh4.ggpht.com/_rG7phYpHfqI/TQ1WpS2dYwI/AAAAAAAAACA/XWGgmk-0598/SDC11261.JPG
    img src: http://lh4.ggpht.com/_rG7phYpHfqI/TQ1WpS2dYwI/AAAAAAAAACA/XWGgmk-0598/SDC11261.JPG



    Well, no secret here, apply a suitable quantity of the glue (too much is bad) over the cns2132 (the larger chip) and apply the heat sink. Wait a minute for the plaster dries:


    http://lh6.ggpht.com/_rG7phYpHfqI/TQ1WpvI-JAI/AAAAAAAAACE/RCfrxyJPMEo/SDC11256.JPG
    img src: http://lh6.ggpht.com/_rG7phYpHfqI/TQ1WpvI-JAI/AAAAAAAAACE/RCfrxyJPMEo/SDC11256.JPG




    http://lh6.ggpht.com/_rG7phYpHfqI/TQ1Wphy-inI/AAAAAAAAACI/U5q4Q208Y24/SDC11260.JPG
    img src: http://lh6.ggpht.com/_rG7phYpHfqI/TQ1Wphy-inI/AAAAAAAAACI/U5q4Q208Y24/SDC11260.JPG



    Close the case. Just all!! You will notice that the heat sink gets very hot (can burn your finger!), meaning that it and the thermal compound is doing the job. If you will keep the NAS in a fixed position You can consider installing a small fan! You will see that it is not too much!

    (Avoid to touch any metallic part damaging components with ESD).

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    post edited by edu1966 on 12/19/2010 at 5:14 AM
  • Hakan_G Moderator Sunday, December 19, 2010 5:55 AM Reply
    Nice tutorial, sent you some points :)
    I'm not part of DX Staff, only a forum moderator. My comments are my own
    views and might not reflect the views of DX.
    Got Questions for DX? Use CS Express: http://services.dealextreme.com/
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  • edu1966 Monday, December 20, 2010 1:03 PM Reply
    Thanks Hakan! :)
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  • afunbee Thursday, December 30, 2010 12:30 PM Reply
    Nice post. I'm not a thermal expert, but I assume if the ambient temperature is the same before and after the heatsink mod, then there is no improvement. (Correct me if I am wrong). Despite this, I will order the heatsinks and try adding a fan. I would like to keep power requirements low for the fan if possible.
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  • edu1966 Friday, December 31, 2010 10:59 AM Reply
    @afunbee: The improvement does exist because the ambient (air) is always cooler than the components. So, naturally there is a constant heat transfer that cools things by air contact.

    In this case, the heatsink improves the cooling efficiency because it has more contact area with air (this is why usually heatsinks have an odd shape).

    But You are right. Adding a fan to force a larger volume of air into the heatsink will drastically reduce temperature and actually is what this device needs. The drawback is that You need a little more skill to do that. Anyway, the heatsink solution is far better than nothing!
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  • dtp30 Wednesday, January 05, 2011 12:34 PM Reply
    I did a simular mod to mine like this. But used copper heatsinks instead. Funny how we used an almost identical drilling pattern for the new holes. I added a fan to mine too... You never guess which one i used! It`s the fan from inside a Wii (any small 5V fan is fine). Bit modded though.. But works realy well. Makes the whole thing look odd. But doesn't even get warm.

    I have also upgraded to 64MB of ram on board as well... But thats NOT easy... Also there is no stable build for 64MB yet.. Maybe one day i hope!

    D.
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  • dtp30 Thursday, January 06, 2011 9:41 PM Reply
    The best way to cool it would be to cut a window above the CPU in the plastic case. Then mount a really tall heatsink on top of it. So when the case is put back together the heat sink pops out through the hole into the free air around it. Wouldn`t need a fan.

    The DDR400 ram (inside it) just use a DIMM heat sink if your worried. SKU 24500 is my choice. I used i think 4 of these on the CPU... (from memory).

    Bellow is my baby ;-)

    D.


    http://img29.imageshack.us/img29/5948/fanag.th.jpg
    img src:
    http://img29.imageshack.us/img29/5948/fanag.th.jpg

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    post edited by dtp30 on 1/6/2011 at 10:14 PM
  • afunbee Tuesday, January 25, 2011 12:05 PM Reply
    I am curious to know how fan is powered.
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  • dtp30 Tuesday, January 25, 2011 5:17 PM Reply
    From the unit :-). The unit works on 5V. The fan is 5V. I'm an electronics tech guy so just soldered it all up, Added a small plug on the outside. So if i need to disconnect the fan i can with out opening the unit.

    Works a treat! The "modded" Wii system fan is silent.. 5V and sucks just enough air to cool the heat sinks i have mounted under it on the CPU.

    Is that the answer you were looking for?

    D.
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  • afunbee Tuesday, January 25, 2011 6:07 PM Reply
    @dtp30 Thanks. I'll give it try. I'll have to find a small quiet fan next.
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