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Thread: MPJA - MECI ASTEC DC-DC Converter

  1. #31
    Newbie
    Join Date
    May 2000
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    1

    Question

    I hooked up the MPJA supply to a 13.8 V 10A supply in my house, and it worked great with the computer. I then took it out to the car and hooked it up to the lighter socket. I tested the outputs and they were OK. I then connected the computer, and it destroyed the supply. Anybody have a clue as to what I did?

  2. #32
    Newbie
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    Apr 2000
    Location
    seattle, wa us
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    18

    Post

    how do we hook it up to the motherboard? is there a pinout diagram i can look at?

    Thanks

  3. #33
    Luc
    Luc is offline
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    Feb 2000
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    Mamer
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    Post

    Hi Trike,

    To hook it up just follow the previous post on this message, you've the schema for power outppput and just have to make it fit with your mobo.

    Luc
    Luc

  4. #34
    Newbie
    Join Date
    Apr 2000
    Location
    seattle, wa us
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    18

    Post

    follow what posts? i have tried hooking this thing up and am having no luck. when i stick a volt meter to the differant wires. they are all reading +12v.. even though as pin 10 states that it should be 5 volts. any ideas?

    Thanks

  5. #35
    Newbie
    Join Date
    Mar 2000
    Location
    Melbourne, Victoria, Australia
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    4

    Post

    Where can I get ny hands on one Dowunder?

  6. #36
    Newbie
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    Mar 2000
    Location
    Melbourne, Victoria, Australia
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    Question

    I'll try that again, this time in english.
    Where can I get my hands on one of these PSU's downunder here in Australia?

  7. #37
    Variable Bitrate
    Join Date
    Aug 1999
    Location
    Yorba Linda, CA
    Posts
    323

    Lightbulb

    Teninho -

    Sure you can split one of the +5V leads into two to give all your MB's +5V inputs power. Many motherboards merge them all when they enter the board anyway, so it's no big deal... I've powered a motherboard using just 4 wires (+5V, +12V, -12V, GND) and it worked fine...

    The main reason they use so many leads with the same voltage is for current carrying capacity. If you were a PSU manufacturer, would you rather run a fat, single 8 ga. wire or several 16 ga. wires? It's easier and more cost effective to use several smaller diameter leads to pass the current. Plus the connectors don't have to be massive, etc.

    Just some info you might find useful...



    ------------------
    --Jason

    Web site: http://www.m2pc.com
    Yahoo Pager: m2pc123
    Jason Johnson
    Yorba Linda, California
    http://www.m2pc.com

    MPC Phase IV - *** PENDING ***

  8. #38
    Low Bitrate JesTa784's Avatar
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    Jul 1999
    Location
    Cupertino
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    59

    Post

    Ok.. i'm one of the unfortunate that blew his power supply up too.. i'm thinking of either buying another or just going with invertor..

    Am i wrong when i connect all the +5v pins together and wire it off to the motherboard like that? is that why it blew up?

    I was acutally trying to run the dc-dc convertor off of a PC power suppy... is that another reason?

  9. #39
    Maximum Bitrate vicky_obee's Avatar
    Join Date
    Dec 2003
    Posts
    562
    Hi Guys well could u pls tell me as to what power supply are u looking at.. i mean the link pls
    Commell LV-677 DC 6 x 6" Mother Board
    2.6 GHz; 1 Gb Ram
    120 Gb Laptop HD
    7" InDash Xenarc MTD - X7000 Screen
    Gyration Mouse ; GPS Mouse ; ELM Scan ; TPMS
    Parrot MK 6000 & iPhone
    ----------
    Re done the carputer...Into the Glove Box !!

  10. #40
    Low Bitrate got2liv4him's Avatar
    Join Date
    Oct 2004
    Location
    Gonzales, LA
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    87
    i think this post is over 4 yrs old, don't think those guys are going to answer, maybe...
    Kimi ga kawareba, Seikaimo kawaru!

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