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Thread: M2 ATX Problem

  1. #231
    FLAC ShawJohn's Avatar
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    Unhappy

    Just had Mr_bean_Phillips telling me that there is nothing wrong with the M2-ATX and that if I simply replace a cap on the board it should work fine. He blaims the problem in my sp13000 Mobo

    Nothing wrong with the board but you have to change components on it

    IF THERES NOTHING WRONG WITH THE M2 WHY DOES IT NEED MODDING?

  2. #232
    Maximum Bitrate v8 scimitar's Avatar
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    Didn't have to change anything on my opus for the 13000 and its been working for a year now. Complete plug and play just as it should be. The M2 obviously isn't universally compliant with motherboards like every other power supplies are. There are posts all over the place that you have to change X to get it to work with Y. This is just stupid and IMHO completely unacceptable. How can you blame a mobo when every other power supply I have ever tried with it works?
    Visit my site V8 Scimitar

    SP13000, 300GB SATA HD, 1GB DDR. Opus 150, K301 screen, Cisco WIFI, AQmax GPS, RoadRunner and FreeDrive, Sony MEX-R5 head unit. 4 years installed and it just keeps running!

  3. #233
    FLAC ShawJohn's Avatar
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    exactly what I thought

  4. #234
    FLAC LESLIEx317537's Avatar
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    Maybe I've been lucky, but mines been running perfect everyday since I installed it.
    When it does break, if it ever does. I will report it here. Got my fingers crossed.
    My Sharp Aquos 37" 1080p died on me in 3 months. -> Got refund check, now use Sony XBR2 40".
    My Xbox 360 died on me, under 3 months, not have Elite HDMI.
    In 2000, I RMA'd a few Abit motherboards, since 2001 I use Asus with no problem. -> E6600 on P5W-DH.
    Other than that, I don't recall too many other things dieing on me, except the occasional Hard Drive cause I build a lot of PC's for clients.
    My M2-ATX has been really good to me.
    SP13000|M2-ATX|512MB DDR400|2.5" 7200RPM S-ATA|Trans-7"|Slim SL DVD-CDRW|KEH 5.1 DSP|SB L!ve Ext|Gyration PowerMate|BT|WiFi|GPS|WinXP|VoomPC
    GPSing - Digital Speedo
    Relocating headunit and extending faceplate
    Button app to Alt-Tab between two programs

  5. #235
    FLAC ShawJohn's Avatar
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    nobody is saying they die. Just that they need certain components removing and replacing with higher rated parts just so they work with 'certain hardware'.

    Seems to me they shouldn't claim to be ATX compliant if they aren't, and from my experience they aren't.

    Thats what I've been lead to believe on here anyway


    Maybe thats why all the other similarly rated DC-DC PSU's are twice as expensive

  6. #236
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    +5VSB and +5V waveform

    Quote Originally Posted by ShawJohn View Post
    which of the atx pins is 5vsb? or do you mean the red 5v drive loom wire?
    +5VSB is pin 9, +5V is pin4,6,19 and 20. Can you check waveform by oscilloscope?
    Cable color of +5VSB is purple. +5V is red. These are all specified in the ATX power supply specification.

    In my case, +5VSB drops 5V to 0.5V when main power turns on.
    +5V rises up to 2V and then drops to 0.5V and then rise again when booting was succeeded.

  7. #237
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    Quote Originally Posted by Justintoxicated View Post
    I did not read this whole thread yet, but this sounds like a "switch bounce issue" I have a similar problem with my current PC. Enermax PSU went POP, got replacement and now sometimes I have to try to power my PC on like 20-30 times before it will boot up.

    The solution is to solder a .22uf capacitor tot he switch to reslove the issue on my equipment. I have not done this yet, I may just send the PSU back for another one. Motherboard company Blames the PSU make PSU maker blames PSU company... The Cap is supposed to filter the bounce.

    Google switch bounce for more info. My Sony TV has this problem as well. It is pretty common.
    This is not de-bounce issue.
    I think adding cap is not the solution.
    In the ATX power supply specification, it is stated that "power supply shall provide de-bounce circuitry". However, my MB PS_ON# signal doesn't have de-bounce. Power switch is connected to MB and MB is eliminating de-bounce.

  8. #238
    FLAC ShawJohn's Avatar
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    I'll stick a multimeter on it tonight and see what's what

    Cheers


    John

  9. #239
    Newbie vrslider's Avatar
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    Please help I am stuck !

    Guys, I am already breaking my head around this for 2 days browsed the forums but besides jumpers settings set wrong I could not find my problem..
    ..
    When I remove the jumper (mode 0 ) the M2ATX the boards powers up fine and works great..

    But when I put the jumper in postion 2 ( 5sec/2hour ) nothing happens when I turn on the car.

    I verified GND / 12v direct from the battery and the IGN wire delivers 12v when the car is on ACC or running..

    ANY ?? ideas ......please help...

    Raim.

  10. #240
    FLAC ShawJohn's Avatar
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    Its an M2.

    My advice is sell it and buy an OPUS

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