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Thread: Dead M2-ATX on XBox

  1. #1
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    Dead M2-ATX on XBox

    Hello

    I used a M2-ATX to power the XBOX in my car (had to replace the original PSU und make an own adapter cable as described in the forum). It worked for about 100 hours, but yesterday, it looks like the M2-ATX died.

    I'm not very sure what it is:
    - There is no visible "burn mark", but it smelled like a part burnt out
    - J1 Battery+ and J4 Battery- seem to be shortened now to 0Ohms (even without power)
    - Q9 MOSFET FDS6680A is getting very hot now with power

    Is there any general hint to find the burned part? Any tipps & tricks? There is probably no schematic avaiable of the M2-ATX, right?

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  2. #2
    FLAC ShawJohn's Avatar
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    the wires aren't in the same pattern on the PSU socket of an XBOX mobo to what they are in an ATX PC

    I know this cause I tried powering an xbox with a PC PSU to test it, and it never worked again, and the psu was dead too Im affraid you fried it

    There is a way of changing the wires round though, read it somewhere on an xbox forum ages ago

  3. #3
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    Hello ShawJohn,
    as i described above, i have made a correct and working adapter cable. It worked for five or so.

  4. #4
    Low Bitrate MibMib's Avatar
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    Hi
    1.Could you make a high pesolution pix of top and bottom of m2 ?
    2.Does yours xbox work from it's own or another psu now ?
    400Watt CarPC power supply for powerfull systems- thaks for Beta testers- it was perfect.

    Remember - AMD Athlon XP (socket A) powers from 5v rail in most times !

  5. #5
    FLAC ShawJohn's Avatar
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    sounds like the xbox has overloaded the M2

  6. #6
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    Yes, might be the 5V rail. The problem is that i had to connect the 5V STDBY from the M2-ATX to the 5V from the XBOX because the standby function. (see attached pictures)

    Anyone can give me an answer what happens if I wire 5V STDBY and 5VDC from M2-ATX together?
    Attached Images Attached Images   

  7. #7
    FLAC ShawJohn's Avatar
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    Boom !!!





    Only kidding


    I don't know Someone else might...

  8. #8
    DIGItonium
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    If the battery terminals are shorted, then the M2 ATX is definitely toasted. All is not lost, however. The FET burning up is probably faulty because it is probably shorted to ground. See if the "drain" pin is shorted to ground. Remove the part and see if the short goes away.

  9. #9
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    Ok, had to send in my burned M2-ATX and got a brand new M2-ATX. Now again, everything is working fine, as it did before i had the problem. I don't know what it was, might be really one the "usual" M2-ATX problems and is not X-Box related. Btw, i measured that the XBOX needs only about 50W in music and video play mode on XMBC.

  10. #10
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    Quote Originally Posted by ghujdal View Post
    Ok, had to send in my burned M2-ATX and got a brand new M2-ATX. Now again, everything is working fine, as it did before i had the problem. I don't know what it was, might be really one the "usual" M2-ATX problems and is not X-Box related. Btw, i measured that the XBOX needs only about 50W in music and video play mode on XMBC.
    how old was your m2 when u sent it back? i have this EXACT same problem with mine now on my car pc but i've had it for just over a year and wonder if they still would honor the warranty.
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