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  • Current Testing

    Since everyone is curious (for the most part) as to how much power a motherboard draws. I made a current test jig for +5 +12 and +3.3 and tested the FV24 and the intel 810iEMO

    These are my initial findings:

    The FV 24 uses the 5 volt line to generate the CPU voltage. My MPBS1 power supply is better suited than I thought. The motherboard doesn't really use much of anything on -5 -12 or +12. It monitors +3.3 +5 and +12 in the BIOS. The fan was the only thing drawing 200 mA on this board. When I took off the fan, the current dropped to 0 on +12 volts.

    The high and low currents are pretty basic. I just measured these as the motherboard was booting. I didn't run any operating system or anything. The no ram test probably doesn't have full CPU activity. This will make more sence after I test a few more CPUs and run a benchmark utility. But for the most part these are pretty accurate figures. The Vin and Iin are using my MPBS1 power supply and a gel-cell 12 volt battery. I need to also test the +5VSB voltage too.



    Hopes this answers some questions for people, it answered some of mine..

    [ 01-07-2002: Message edited by: Jeff Mucha ]
    MPEGBOX - Plexiglass Computer
    www.mpegbox.com

  • #2
    ok jeff, i think i might have to pay you to create a psu for me. I might start on my next box soon so i need psu ASAP so i can decide how i want to approach the designing of the box.
    abcd-1
    Author of CobraI,II,III and now CobraIV.
    You can contact me on AOL instant messenger....nick is cenwesi or cenwesi3

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    • #3
      What size do you want the PS?? high power, big size, or low power, small size?? do you want to make the box as small as possible???

      Comment


      • #4
        Originally posted by SkinnyBoy:
        <STRONG>What size do you want the PS?? high power, big size, or low power, small size?? do you want to make the box as small as possible???</STRONG>
        Charles dont you worry mate!
        SkinnyBoy is going to make the best PSU for you... Hehe

        Good Luck!
        Fosgate

        System Comp V3 - In progress.
        Low power MB with C7 CPU, DC-DC PSU, car ECU link, USB TV, GPS, 7" TFT, Wireless, Voice.

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        • #5
          Originally posted by Fosgate:
          <STRONG>

          Charles dont you worry mate!
          SkinnyBoy is going to make the best PSU for you... Hehe

          Good Luck!</STRONG>
          I was gonna say somethin along those lines but I bit my tounge....
          Project - GAME OVER :(

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          • #6
            Well I tested a Celeron 566 and It uses a little more on the 3.3 side. Hmm kinda weird.

            Motherboad: FV24 with Celeron 566 1.5v -- 32M RAM (16 chips)

            Volts -- I low -- I high --
            12 -- 0.2 -- 0.2
            5 -- 2.2 -- 2.5
            3.3 -- 1.5 -- 2.2

            Voltage in 11.06
            Current in 2.65

            [ 01-09-2002: Message edited by: Jeff Mucha ]
            MPEGBOX - Plexiglass Computer
            www.mpegbox.com

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            • #7
              Originally posted by Fosgate:
              <STRONG>

              Charles dont you worry mate!
              SkinnyBoy is going to make the best PSU for you... Hehe

              Good Luck!</STRONG>
              I will NOT trust anything skinnyboy makes, that is if he even have a setup
              abcd-1
              Author of CobraI,II,III and now CobraIV.
              You can contact me on AOL instant messenger....nick is cenwesi or cenwesi3

              Comment


              • #8
                Originally posted by Charles Enwesi:
                <STRONG>

                I will NOT trust anything skinnyboy makes, that is if he even have a setup </STRONG>
                I don't see why you wouldn't... If just 1 person was to trust me, then others would find out from that person that I can be trusted...

                And, I would not rip someone off, because that would give me a bad reputation, and then no-one would bue things form me, see, not that I have anything to sell at the moment though.....

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