CPU selection guide! | Page 2

Discussion in 'Mainboards / CPU / RAM' started by jcee, June 6, 2005.

  1. Casper

    Casper Portal Member

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    Indeed, they do. I have a Athlon 64 3800+ Venice n my new main pc and the hottest my CPU has gotten is 45C after several hours of running at 100%. It idles at around 33C.


     
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  3. AllenConquest

    AllenConquest Portal Pro

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    What sort of cooling do you use Casper ?
     
  4. Casper

    Casper Portal Member

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    I use the stock cooler that came with the CPU. It work suprisingly well, but it's a bit noisy.
     
  5. AllenConquest

    AllenConquest Portal Pro

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    So you couldn't really use it in a living room as a TV replacement then ?
     
  6. pmbsa

    pmbsa Portal Pro

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    I have an Athlon 64 3200 Winchester running in a little shuttle, it seems to run cool and quiet in my lounge full time. (OS is XP PRO 32bit)..
     
  7. jcee

    jcee Portal Pro

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    First of all: Thank you for your hints. I decided to bought a Athlon 64 2800+ NEWCASTLE (though I had the chance to get a Sempron 3000+ for the same price)

    I also bought a MSI K8MM-V miniATX board together with an Artic Silencer Ultra TC which is temperature controlled (TC).

    I have to say, it is very quiet. I am very picky in regard to noise and I sold my MSI MegaPC because I found it to be too noisy...

    I used CrystalCPUID to lower the voltages for each multiplier about 10% and setup the multiplier management where the hyserese of the steps is quite big.
    Means the CPU must really run max, till CrystalCPU goes one step up..

    - max State. 9x, 1.400V (instead of 1.500V) approx 80W
    - mid State. 6x, 1.250V (instead of 1.300V) approx 32W
    - min State. 4x, 1.050V (instead of 1.100V) approx 20W

    Doing this I force the system to stay in 4x most of the times, .. with some codecs it needs more power, but then 6x is sufficient.. :)

    I also switched of all fan control and let the CPU fan do the control.
    Most of the time it spins at 1000RPM... :)

    I can really recommend this approach!!!!!

    Really nice
     
  8. jcee

    jcee Portal Pro

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    One more question:

    From the AMD technical paper:

    ALL the Athlon 64 with the same core do have the same lowest state power consumption (22W) and the same highest state consumption of 89W.

    So that means that my 2800+ uses 89W @ 1800Mhz.

    If I look at a 3200+ which has a higher max state and in addition has several intermediate states it also says just 89W for the highest state..

    If I asume that I run that CPU at 1800+ (which is obviously a intermediate state for it) the technical paper says something between 22W and 89W.

    How can this be? Could I get a lower heat system when using the higher CPU and sticking it to 1800Mhz compared to my current CPU running natively 1800Mhz?!?

    I was wondering because all the Athlons I am refering have the same core.

    Anyone an explanation?
     
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