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heat sink and fan question

Discussion in 'PC Hardware' started by gghartman, 2003/02/08.

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  1. 2003/02/08
    gghartman

    gghartman Inactive Thread Starter

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    I have a Intel P3/667 FCPGA 370 133mhz FSB system board.

    The original fan in the machine was a GlobalWin but unfortunately I do not know what speed it ran at. Anyway the fan was obviously loosing its spin ability so I replaced it with a Cooler Master DP5-5H51 which was recommended by the company I purchased the original system from. This fan runs at 33.9 dBA but has a noticable hum to it and does seem to vibrate the case a little more than the old fan.

    Do I have anything to worry about. GlobalWin tells me that they think the fan is faulty, the company I purchased the fan from does not totally agree with that they think its because its a faster fan than the old one thereby the humming.

    I believe I know quite a lot about other components of computers but the fan thing not quite as knowledgable.

    Opinions would be appreciated.

    Thanks.
     
  2. 2003/02/08
    Zephyr

    Zephyr Inactive

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    I might buy the extra noise (hum) due to higher speed but I would never accept any vibration since that is definite defect in the fan balance. Return it for replacement.
     

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  4. 2003/02/08
    gghartman

    gghartman Inactive Thread Starter

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    I thank you for your help.

    The second machine I have is a P3/1g and when I place my hands on both sides of the case I feel not vibration at all but when I put my hands on the other machine its a light tingling sensation.

    Is your opinion the same to return ???
     
  5. 2003/02/08
    Zephyr

    Zephyr Inactive

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    Absolutely!
     
  6. 2003/02/08
    gghartman

    gghartman Inactive Thread Starter

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    Thank you. I have requested them to send me a new device.

    What is a good speed for a fan for my system to run at ? Is there a normal speed for max. cooling ?
     
  7. 2003/02/08
    gghartman

    gghartman Inactive Thread Starter

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    Zephyr

    One other thing if I could. Tualatin vs non-tualatin do I need to consider this with the proper heat sink and fan ??? Definitions of these terms is hard to find but the company I brought the system from keeps referring to these terms.
     
  8. 2003/02/08
    Zephyr

    Zephyr Inactive

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    The Tualatin die referrs to a later development in the PIII series and likely doesn't apply to you. A bit more about it can be had
    here.

    My own fan speeds are:

    CPU fan = 2205 rpm

    Chassis fan = 1328 rpm

    I believe that is fairly typical. Fan noise is a direct result of the fan tip speed, hence the larger diameter fans need to spin slower (lower rpm) lest the tip speed become too great and they become very loud.
     
    Last edited: 2003/02/08
  9. 2003/02/08
    gghartman

    gghartman Inactive Thread Starter

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    Thank you very much for all the info. It has been most informative. I agree by that article that my machine is non-tualatin.

    Again thanks.
     
  10. 2003/02/09
    gghartman

    gghartman Inactive Thread Starter

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    Zephyr

    Need to ask a little more. Have done a little research on the heat sink and fan thing as well as the tualation vs non-tualatin.

    My old heat sink and fan appear to be FHP08 on GlobalWin\usa web site and the diagram says its 50x50x10 and that is what my old device measures out to be at 6000 rpm. The new one sent me that vibrates is 50x50x15 could that be a reason why it vibrates ??? Which is a Cooler Master DP5-5H51 and its 4200 rpm slower than the fhp08. Now I guess in a couple years this could have changed but it is exactly the same image as what I have.

    Is it always necessary to replace the heat sink with only the fan appears bad ???

    Both the FHP08 and the DP5-5H51 say they work in machines all PIII up to around 1.2g. So does this mean tualatin vs non-tualatin does not matter on my pIII/667 socket 370 ???

    Again thanks for the info. Have had other clients whose fan has gone bad but was an easy fix cuz it was still under warranty with Dell so they just sent me the same device. Nothing to think about but now my own machine causes me to learn more about this area.
     
  11. 2003/02/09
    Zephyr

    Zephyr Inactive

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    gghartman The two fan are nearly the same in performance. The DP5-5H51 is slightly (1.9 dba) louder but that small increase wouldn't be noticable to most people. It does deliver 23% more air than the old FHP08 yet runs slower (4200 rpm versus 6000 rpm). Fan blade pitch is higher.

    All in all the new one represents an upgrade for you and all you need is to get one this is balanced properly so it doesn't vibrate.

    As for replacing the fan without replacing the heat sink, I would not ordinarily recommend that. They are match units and the heat sink efficiency (total effective surface area) determines how much air flow volume is required to affect the heat transfer rate needed to cool the CPU. Essentially the better the heat sink, the smaller the volume of air needed. A very good heat sink requires very little air flow and therefore run very quiet.

    Look at this very quiet heatsink/fan combo and compare the ratings with yours.

    I have no expertise in the Tualatin versus non-Tualatin issues but if yours is a coppermine it would be a moot point anyway.

    Regards. :) ps, Don't forget the heat transfer paste when installing the new sink. It's very important.
     
  12. 2003/02/10
    gghartman

    gghartman Inactive Thread Starter

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    Again thank you very much you have increased my knowledge in this area and its appreciated.
     
  13. 2003/02/10
    Zephyr

    Zephyr Inactive

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    You're welcome. You may also find this interesting. I learned some fine points about the differences of the Coppermine versus the Tualatin chip. The Tualatin actually runs cooler (dissapates less wattage) so would need less air, if speeds were the same.

    Cheers. :)
     
  14. 2003/02/11
    gghartman

    gghartman Inactive Thread Starter

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    Very interesting article. I have found out that I'm pretty much stuck with my p3/667. That the chipset can go up to a gig but I dont see any real benefit in that little jump. In most of my buying new machine technology I usually skip one version so will probably hold onto the 2 p3's I have until we get upto a p5 or something. I had the original p1 then up to the p3. I also had the 286, 386 and 486 and they were very costly and now that I think about what they used to be we've come alone way. I have one client that still has a 486 running windows 98 which was a real shock when she needed help. Had to go back aways in memory on that processor.

    Again thanks. My new heat sink and fan should be here today. Hopefully it will do what its suppose to do.
     
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