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Author Topic: Power Supply Voltages  (Read 3200 times)

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jkolak

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    Power Supply Voltages
    « on: March 06, 2010, 10:58:02 AM »
    I'm trying to track down problems on a Soyo Dragon KT400+ Ultra (Athlon XP 2200+) system.

    Having read a lot of threads on power supply issues, I would like to get opinions on the voltages read by the Soyo Hardware Monitor:

    Vcore = 1.6v

    +3.3v = 3.2 to 3.21v frequent fluctuation between these two values

    +5v = 4.89v / 4.86 occasional fluctuation

    +12v = 12.41 mostly, 12.48 occasional fluctuation

    DDR = 2.47v / 2.49 occasional fluctuation

    AGP = 1.48v

    Also

    Fan Speed = 5114 / 4963 occasional fluctuation - I think this is the sensor resolution because there are no intermediate values. Same with values above.

    CPU = 54 C / 55 C sometimes

    CHA = 42 C / 43 C sometimes

    I saw that early Athlon XP 2200+ models ran at 1.65v, but I checked the serial number against the AMD paper and confirmed this is a 1.6v model.

    Thanks.
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    Computer_Commando



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    Re: Power Supply Voltages
    « Reply #1 on: March 06, 2010, 03:30:01 PM »
    It all looks normal to me.  Try this monitor to see if there are any variances.  The standard version is free.
    http://www.cpuid.com/hwmonitor.php
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    patio

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    Re: Power Supply Voltages
    « Reply #2 on: March 06, 2010, 03:38:16 PM »
    I had 3 SOYO MBoards in years past...
    Their diagnostic reporting was rarely accurate...
    I'd suggest Speedfan and the Paid version of Everest to get a benchmark of those voltage readings and then compare all 3
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    " Anyone who goes to a psychiatrist should have his head examined. "

    jkolak

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      Re: Power Supply Voltages
      « Reply #3 on: March 07, 2010, 04:55:28 AM »
      Thanks. I wasn't sure how close to rated voltage it was actually supposed to be.

      I'll download the suggested software and run more tests.
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      dahlarbear



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        Re: Power Supply Voltages
        « Reply #4 on: March 07, 2010, 11:52:47 PM »
        Quote from: jkolak on March 07, 2010, 04:55:28 AM
        Thanks. I wasn't sure how close to rated voltage it was actually supposed to be.
        My "A+" cert prep recollection is the voltages need to be within five percent (+/-) of the spec value.
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        EEVIAC

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        Re: Power Supply Voltages
        « Reply #5 on: March 08, 2010, 12:09:22 AM »
        Quote from: dahlarbear on March 07, 2010, 11:52:47 PM
        My "A+" cert prep recollection is the voltages need to be within five percent (+/-) of the spec value.

        Yes, I believe the current ATX standard specifies +/- 5%
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        Geek-9pm


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        Re: Power Supply Voltages
        « Reply #6 on: March 08, 2010, 12:52:56 AM »
        Testing a PSU at home is a good idea. But not a sure thing. It is possible that a Power Supply, even a good brand name, may show a problem only under load and after it has been running for an hour or two.
        A good power supply cots less than a high quality Digital  Storage Oscilloscope.
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