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Thread: MPJA Power Supplies, How ?, What ?, Which ?

  1. #1
    Constant Bitrate
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    Exclamation MPJA Power Supplies, How ?, What ?, Which ?

    I have seen quite a few people saying that they are using Power Supplies from MPJA.com, I was wondering which ones. Are they using the DC/DC converters or what? After looking at the converters I only saw one with +/- 12v & =/- 5v. But it didn't look as though it put out enough watts. If someone could please help me in which power devices I need to purchase. I want to keep my case small, and the dc/dc converters look like the route to go, but I need some help. Is this helps anyone one, one of the web pages said they used 2 supplies and total was $29.90. If anyone has some info please reply ASAP, so I don't waste my money of and DC/AC inverter.

  2. #2
    Raw Wave wizardPC's Avatar
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    Post

    its the "astec laptop power supply"

    I dont have the part numbers, sorry
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  3. #3
    Variable Bitrate
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    Just a word of warning about these supplies. I'm not trying to knock them or anything, plenty of people have them working perfectly. But the one i had got toasted somehow...i never did figure out why but it was probably something i did to it. A lot of other people also had this problem...search the board and you'll find some more info on that. i don't think anyone ever came to a full conclusion about them. So just handle it with care and make sure you know what your doing with them.

    That being said. www.meci.com also sells them and they were cheaper there if they still have them in stock.

    Good luck to you with your system.

    Catlas

  4. #4
    Registered User
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    I fried one of my two by hooking up the + to the - and - to +. Didn't read the instructions and ASSUMED that the red wire was + and black - (Pretty standard for the U.S.) but I was wrong. It melted a thin wire on the board. Never had time to fix it. Used my second one and it would power my motherboard, HD, but would not keep the CMOS settings so everytime I rebooted it wanted me to go into setup. Now just bought a book PC and haven't looked into DC->DC yet for it.

  5. #5
    Constant Bitrate
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    Power supplies have nothing to do with keeping the bios powered. That comes from a battery on the mobo. I bet your did something to the mobo when you blew your first power supply.
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  6. #6
    Newbie
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    Does anyone have the exact link to the correct P.S.?

    ScAndal

  7. #7
    Registered User
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    Maybe, Can't remember if I even had the mobo hooked up at the time I blew it, don't think so. Anyway the mobo works fine with a standard powersupply. I did have to change my batt after 3 months of use. I believe someone else on the board had the same trouble with the same mobo and they tried 3 or 4 with no luck.

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