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Thread: DSATX not sending signal to come out of standby

  1. #1
    Constant Bitrate jac1502's Avatar
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    DSATX not sending signal to come out of standby

    I had been having Issues with my carpc for quite a long time mainly running down my battery so I decided to start over fresh and build a new system. Using a Foxconn motherboard

    Now I am having a new issue with the power switch.

    The system will receive the signal from the DSATX fine to turn on from a fresh start and send the signal to go into standby or hibernate. But once the system is in hibernate or standby by it won’t come back on. I can manually jump the pins and it starts up or sometimes if I let it set for ten minutes or so it comes on.

    I have changed the duration of the motherboard power press to several different settings using the brainstem with no luck.

    I understand that some MBs need a positive switch cable, But since mines turns on fine and goes into standby do you think I need one as well? I am really lost here any help would be greatly appreciated!

  2. #2
    FLAC
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    Quote Originally Posted by jac1502 View Post
    I had been having Issues with my carpc for quite a long time mainly running down my battery so I decided to start over fresh and build a new system. Using a Foxconn motherboard

    Now I am having a new issue with the power switch.

    The system will receive the signal from the DSATX fine to turn on from a fresh start and send the signal to go into standby or hibernate. But once the system is in hibernate or standby by it wonít come back on. I can manually jump the pins and it starts up or sometimes if I let it set for ten minutes or so it comes on.

    I have changed the duration of the motherboard power press to several different settings using the brainstem with no luck.

    I understand that some MBs need a positive switch cable, But since mines turns on fine and goes into standby do you think I need one as well? I am really lost here any help would be greatly appreciated!

    Do you have access to a volt meter?

    If you did, you could see if you have a positive or negative pulse Motherboard.

    You take the black wire of your volt meter. put it on a black pin somewhere (ground)

    Then you measure the voltage of both of the power pins when the is pluged in and either on or off.

    Take a paper clip. Short the two pins together with the red probe on the paper clip or just short both of them with the red probe itself. If when the pins are shorted you read 0 volts you have a standard active low power switch. If the voltage is high, then you have an inverted power switch that is active High.

    You can do this test with the DSATX or with a normal house power ATX PSU.

    -Jeff
    MPEGBOX - Plexiglass Computer
    www.mpegbox.com

  3. #3
    Constant Bitrate jac1502's Avatar
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    When the pins are shorted on the board I get very minimal or no voltage.

    However one pin puts off 3.05 volts when they are not shorted.

    Would the positive turn on cable be my solution? If so can I purchase one from you as I donít want to risk anymore troubles?

    If not, do you have any other suggestions?

  4. #4
    FLAC
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    Quote Originally Posted by jac1502 View Post
    When the pins are shorted on the board I get very minimal or no voltage.

    However one pin puts off 3.05 volts when they are not shorted.

    Would the positive turn on cable be my solution? If so can I purchase one from you as I donít want to risk anymore troubles?

    If not, do you have any other suggestions?


    You have a standard polarity motherboard power switch which works just fine with the DSATX output.

    Your problem is probably in BIOS ACPI settings or pulse duration..

    -Jeff
    MPEGBOX - Plexiglass Computer
    www.mpegbox.com

  5. #5
    Constant Bitrate jac1502's Avatar
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    Here are some settings in my bios and what they are currently set at:

    ACPI function Enabled
    Suspend S1 (tried S2 also)
    Power management User defined
    Suspend mode 1 min (Was never)
    Video off option always on
    Video off method Blank screen
    Switch function Break / Wake
    Hot key function Suspend


    I currently have the DSATX set to defaults with:
    No pots
    lowvolts at 1050
    Timer 1 at 0600
    Vturnon is yes
    08 pulsewidth has been 0050, 0100, 0200, and 0300
    22 enable USBvsboff is no

    The system will turn on from a cold start and go into standby or hibernate just not come out.

    Any suggestions of things to change???

  6. #6
    Constant Bitrate jac1502's Avatar
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    I turned off sleep on the DSATX as well.

    If I use the hard power button on my case and leave the ignition on the system will go into standby or hibernate and resume no problem with press of power button.

    Can I not get the DSATX to just send the on off pulse with the ignition and monitor battery level and drop power if it gets low?

    This is very frustrating

  7. #7
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    _Dejan_'s Avatar
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    Did you fix your problem?
    Im haveing same problem but I think Im fix it... HOW?
    by telnet Im load default setting Im write next:
    ---------------
    O - Stop data
    E - enable writing
    Y - confirm
    P - programm mode
    n - USE pots NO
    1150 - low voltage
    0005 - timer
    n - VTURN ON
    S220 - SET 5VSB always ON
    -----------------

    This is fix my problem. Before that Im enable 5VSB always ON but when Im put ignition back nothing has been happen if Im press power button or any key on keyboard sistem came from sleep.

    Now work ok with ignition cable...

  8. #8
    Mod - iPad Forums RipplingHurst's Avatar
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    Just updated to 1.14 firmware, still did not wake up in the morning, all default values. I use a Gigabyte mATX motherboard that does wake fine without the brainstem after the whole night off.

    I'm using the default values, but if I turn off the DSATX sleep mode (+5VSB off) will it not deplete my battery? So this is not an option for me. I'm going to double check all my connection now, also the BIOS.

  9. #9
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    MarcelP's Avatar
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    Any News? works now your DSATX?
    My Project: German/English

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