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Thread: M2 ATX Problem

  1. #181
    Newbie XtremeSteel's Avatar
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    Quote Originally Posted by parksgm
    You say that the RAM works in a regular PC, but not with the M1 or M2...this is most likely a difference in motherboards rather than powersupply.

    The power supply has no idea what brand of RAM is installed on the motherboard...it's likely you would have had the same sort of failure to post with a desktop supply, as the interaction is between the RAM, the motherboard, and the other hardware on the board.

    Although I continuously hear "not to buy cheap RAM", I buy cheap RAM, and have never had a problem with it. That's not to say I won't, but I haven't yet. When (and if) I do, I'll return the non-functioning RAM and buy myself some Cadillac silicon. Until then, if it works, I'll save my money.
    The value ram worked just fine with my car pc when a desktop psu was used; thats why I never thought it was the ram. I used a desktop psu when installing xp and the mp3's, and only switched to the M2 when I was finished.

    My choice of words were wrong. The timing of the 5v rail of the M1 and M2 was slightly off by a few ms; as I was told by a Mini-Box.com support guy, Andre I believe. Therefore value ram wouldn't power on correctly and cause a ram error during post. The Corsair XMS chip is a better built ram module and can tolerate slight power fluctuations. The better chips are like $10 more anyway, and they include a nice heat spreader .
    My PC: VIA MII10000 | 512MB DDR400 Corsair XMS | 80GB HDD | Creative SB Audigy 2ZS notebook | 7" Xenarc TS | M2-ATX | Custom Box |

    95 Mustang (99-04 Saleen Style)


    For Sale: Custom Panels

  2. #182
    FLAC is for flaccid parksgm's Avatar
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    Quote Originally Posted by XtremeSteel
    My choice of words were wrong. The timing of the 5v rail of the M1 and M2 was slightly off by a few ms; as I was told by a Mini-Box.com support guy, Andre I believe. Therefore value ram wouldn't power on correctly and cause a ram error during post. The Corsair XMS chip is a better built ram module and can tolerate slight power fluctuations. The better chips are like $10 more anyway, and they include a nice heat spreader .
    More info, and now it's clear. By the "timing" of the 5v rail, I assume you mean the timing of the switching method the power supply uses to step the voltage down...right?

    Also, out of curiosity, you seem to have a very complete system (per your sig) for only 3 posts...did you just find/join this site or do you have an alias... :-)

  3. #183
    Newbie XtremeSteel's Avatar
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    Quote Originally Posted by parksgm
    More info, and now it's clear. By the "timing" of the 5v rail, I assume you mean the timing of the switching method the power supply uses to step the voltage down...right?

    Also, out of curiosity, you seem to have a very complete system (per your sig) for only 3 posts...did you just find/join this site or do you have an alias... :-)
    Yeah, it would apply the 5v a few ms to late and crash the system during post.

    Actually, I found this site when my Car PC project was in ruins, in March. I first had a flip-up style monitor but the flip-up mechanism wouldnt open anymore and the place where I purchased it was extremely unhelpful and downright rude (not here of course.) It also took them weeks to respond for support on the M1 I originally purchased; all of which made little sense. I finally completed the system in late April and havent gotten around to posting it until just now.

    It was actually this thread where I was looking for help with the psu. After finally resolving the issue, I thought maybe others could be expieriencing the some proplem; since lots of people have issues with the M1 and M2 PSUs.
    My PC: VIA MII10000 | 512MB DDR400 Corsair XMS | 80GB HDD | Creative SB Audigy 2ZS notebook | 7" Xenarc TS | M2-ATX | Custom Box |

    95 Mustang (99-04 Saleen Style)


    For Sale: Custom Panels

  4. #184
    FLAC is for flaccid parksgm's Avatar
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    Quote Originally Posted by XtremeSteel
    Yeah, it would apply the 5v a few ms to late and crash the system during post.
    Ah, that's a different issue than I thought. It seems that could be fixed by delaying the ATX "power_ok" signal from the power supply until the voltage had stablized. But there are probably complicating factors that I'm unaware of...

    I am one of those who had an issue with the M2 (as I may have posted in this thread earlier). In my case, my entire motherboard and HD were fried.

    Hope you have better luck.

  5. #185
    Constant Bitrate pimpmode's Avatar
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    I have a very similar problem to everyone else...Im using the M2 to power a small P4...The startup and shutdown occur correctly, but the motherboard does not kick on...Fan works, continous thumping noise like a heart beat...What are some of the methods to fix this...
    97 Pontiac Grand Prix GTP
    P4 2.4
    Freetech MoBo
    DSATX 220W
    512 MB ram
    200 GB Maxtor harddrive
    Road Runner
    Iguidance 2.1
    EZSync 1.94

  6. #186
    Constant Bitrate
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    pimpmode:
    Had something similar with the previous board I was trying to power with the M2-ATX. The MB would try repeatedly to kick in, giving a regular thumping heartbeat type sound as the fans power up and down continuously.

    Samples of M2-ATX

    I gave up trying to figure out what was going on and moved on to another board.

  7. #187
    Constant Bitrate pimpmode's Avatar
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    So a real solution doesnt exist besides get rid of my motherboard...Ummm cant do that, guess the M2 gotta go, will get the DSATX...thanks for the reply
    97 Pontiac Grand Prix GTP
    P4 2.4
    Freetech MoBo
    DSATX 220W
    512 MB ram
    200 GB Maxtor harddrive
    Road Runner
    Iguidance 2.1
    EZSync 1.94

  8. #188
    Newbie FatalSunrise's Avatar
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    Quote Originally Posted by ramy_zohair
    Another thing is that the m2 remote amp pin is not powering my rockford amp. i measured the voltage across the pin, and it was 12V, at the amps remote terminal, it is 6V what could be the problem that is causing that voltage drop??
    Did you solve this? 'cause I measured only 3.6 volts and I have 4 meter cable aprox. Plus I have same powerin issues than everyone else. I bought my M2-ATX in February, but I installed it just a while ago into my car. So are those "new" M2s working better (which mine obviously isn't)?

  9. #189
    Variable Bitrate ramy_zohair's Avatar
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    Quote Originally Posted by FatalSunrise
    Did you solve this? 'cause I measured only 3.6 volts and I have 4 meter cable aprox. Plus I have same powerin issues than everyone else. I bought my M2-ATX in February, but I installed it just a while ago into my car. So are those "new" M2s working better (which mine obviously isn't)?
    Well, i still didn't try anything. I have my remote amp signals connected to the car IGN signal. My amps have a soft turn on/off feature so they don't thump when they turn on. it is when windows starts (from hibernation) that subs give a big bump. so i guessed the m2 won't be of any help for me. I'm still looking for a anti-windows-start-thump solution It is really annoying.

    Final Touches

    Car: 2002 Mitsubishi Magna EI
    CarPC: SP13000, M2-ATX, 512 MB RAM, 120 GB 2.5" HD, X-Fi Sound Card, Xenarc 700TSV, Garmin 18 USB.
    Audio: 2X15" Rockford Punch Z, 1 Rockford Punch 2-ch Amp, 1 Soundstream Lil Wonder II 4-ch Amp

  10. #190
    Maximum Bitrate
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    So can anyone confirm that the M2 version XX is now working and resolved the problems with folling

    [1] No booting with the SP13000
    [2] Cap and P4 plug issue
    [3] Lugs to close issue

    Cheers
    Kosti
    New Car PC Build list in progress

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