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Thread: Will an M2-ATX Power my Core 2?

  1. #1
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    Will an M2-ATX Power my Core 2?

    I have my system all built and it is running fine on the bench with a 240 watt PS. I wanted to go to a DC-DC PSU with a shutdown controller once I got it into the car just to make it a little easier but I wasnt sure if 160 watts would be enough for my system.

    Heres the specs :
    Core 2 Duo E6420
    2x1GB DDR2 Ram
    Audigy x-Fi Xtreme Audio
    250GB 5400RPM SATA Laptop drive

    Everything else will be powered by a powered USB hub, so nothing to worry about there. Thanks for the help!

  2. #2
    Fusion Brain Creator 2k1Toaster's Avatar
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    Core 2 Duos are energy enifficent by nature.

    It should be fine.
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  3. #3
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    Do you think that the Dsatx would be safer for the price difference? Not that I want to S
    spend the extra money but it wouldnt be that big of a deal.

  4. #4
    Fusion Brain Creator 2k1Toaster's Avatar
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    Just saw you have the desktop version. If it isnt too late, trade that in for a mobile version.

    Yours will probably draw 65W all from the 12v rail. So (65 Watts)/(12 Volts) = 5.41A

    You are within the 8A specs for the M2. However, this means you should not power too many other 12v hogs (monitor, sirius box, 3.5" HD, 5.25" optical). Try and use 5v components such as laptop drives (optical and magnetic/nand)
    Fusion Brain Version 6 Released!
    1.9in x 2.9in -- 47mm x 73mm
    30 Digital Outputs -- Directly drive a relay
    15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
    Buy now in the MP3Car.com Store

  5. #5
    Maximum Bitrate crooper's Avatar
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    My M2-ATX powered CarPC wouldn't POST when my Barton 2500+ was fully clocked (65w). I didn't have many other peripherals. I had to underclock it (by reducing the FSB). You might be able to do a similar thing with the Core2Duo.

  6. #6
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    Not a chance. M2-ATX is horribly overspeced. Get an Opus.
    Audio: 4 * Rainbow Audio Germs + Infinity Basslink / Case: iStarUSA S3 / CPU: C2D P8700 / MB: Jetway NC64-LF / SC: ASUS Xonar Essence STX / RAM: Crucial 2x1GB 1066MHz / HD: MTRON 2.5" 30GB / DVD: Panasonic UJ-815B / PSU: Opus 180w / LCD: Xenarc 700TSV

  7. #7
    And then I was mod. Tidder's Avatar
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    The M2-ATX should be fine for that. At full 100% usage, you CPU's gonna suck maybe 93 watts (7.75A) from what I could gather on the interwebs. I'd be willing to bet that you'll rarely hit up to 85% normally using it. But if you're scared, always go bigger. Bigger is always better when it comes to psu's imo.

    On a side note, the Opus 150 only puts out 5A on the +12v rail... don't do Opus.

    If it were me, I'd go with the DS-ATX just in case I wanted to ditch my powered USB hub...

    12A on both 12v and 5v rails, and that's not peak, just nominal.
    Tidder

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  8. #8
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    I think that the DS-ATX sounds like the way to go. The other way that I have been thinking about running it would be through an inverter and just buying a shutdown controller. I already have an inverter and the SDC would only be another 50 bucks.

  9. #9
    And then I was mod. Tidder's Avatar
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    Bah, inverters are ok, I ran one for my first and second carPC setup, but I hated that it wouldn't survive crank... otherwise I'd still be using one.
    Tidder

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  10. #10
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    Quote Originally Posted by Tidder View Post
    The M2-ATX should be fine for that. At full 100% usage, you CPU's gonna suck maybe 93 watts (7.75A) from what I could gather on the interwebs. I'd be willing to bet that you'll rarely hit up to 85% normally using it. But if you're scared, always go bigger. Bigger is always better when it comes to psu's imo.

    On a side note, the Opus 150 only puts out 5A on the +12v rail... don't do Opus.

    If it were me, I'd go with the DS-ATX just in case I wanted to ditch my powered USB hub...

    12A on both 12v and 5v rails, and that's not peak, just nominal.
    Again, M2-ATX is overspec'd and Opus is probably under. The biggest issue is it has no overvolt protection. C2D in sig - M2-ATX dead, Opus 150w running strong. I have also had two M1-ATX that ran fine for a few months and inexplicably fail, while powering components well below the listed rating. Amp out issue is intermittent and there are plenty of threads that will back up the unreliability of the MX-ATX PSUs. For anything other than a VIA - stay away. YGWYPF.
    Audio: 4 * Rainbow Audio Germs + Infinity Basslink / Case: iStarUSA S3 / CPU: C2D P8700 / MB: Jetway NC64-LF / SC: ASUS Xonar Essence STX / RAM: Crucial 2x1GB 1066MHz / HD: MTRON 2.5" 30GB / DVD: Panasonic UJ-815B / PSU: Opus 180w / LCD: Xenarc 700TSV

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