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Thread: Why does my DSATX die while in hibernate mode

  1. #1
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    Why does my DSATX die while in hibernate mode

    My DSATX just recently started dying while its in hibernate (3 blink) mode. I have the DSATX set to leave the 5V line on to preserve system sleep for the computer, and i'll leave my car over night, checking to see if the 3 blink event occurs. When i return to my car the next morning the DSATX is completely off (no led).

    I thought that maybe my auxiliary battery was going back or something, so i checked the voltage on it and after an overnight sit it's still at 12.13v, so its not the DSATX detecting low voltage and shutting down. What else could it be? Really would like to go back to being able to use hybrid sleep because its the primary reason i bought an auxiliary battery
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    Mod - iPad Forums RipplingHurst's Avatar
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    I'm assuming you do not use the Brainstem and/or have it with it's own 5v power source (AFAIK the only way to make it work reliably, though I haven't tested it myself yet).

    I would first think the same thing, low voltage. Make sure you test voltage at the dsatx, not at the distribution block or on the battery, sometimes the cables/connectors on the DSATX are giving away.

    Have you checked the low temp threshold, if it's not turning off due to low temperatures overnight? You could change that. According to this, the operating temp minumun is -40C, but the "allowable" temp is only -10C. I'm in CA, so I've never been below -10C, but depending where you live...check the DSATX setting with the brainstem to make sure.

    Finally, have you tried a "hard reset", i.e. pulling the 12v and ground wires and then connecting it back? Maybe it's a software error, I don't know. I've seen stranger behavior cured by just doing the "hard" reset (as opposed to just shorting the reset pins).

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    Quote Originally Posted by RipplingHurst View Post
    I'm assuming you do not use the Brainstem and/or have it with it's own 5v power source (AFAIK the only way to make it work reliably, though I haven't tested it myself yet).

    I would first think the same thing, low voltage. Make sure you test voltage at the dsatx, not at the distribution block or on the battery, sometimes the cables/connectors on the DSATX are giving away.

    Have you checked the low temp threshold, if it's not turning off due to low temperatures overnight? You could change that. According to this, the operating temp minumun is -40C, but the "allowable" temp is only -10C. I'm in CA, so I've never been below -10C, but depending where you live...check the DSATX setting with the brainstem to make sure.

    Finally, have you tried a "hard reset", i.e. pulling the 12v and ground wires and then connecting it back? Maybe it's a software error, I don't know. I've seen stranger behavior cured by just doing the "hard" reset (as opposed to just shorting the reset pins).
    I dont use the brainstem they recommended.. i have a custom cable that works with Putty and the DSATX plugin for CF just fine.

    Spose i should check the power at the DSATX but i'm sure its not giving away 2v. I will double check though. I did check the miminum temp and its still set at -10. That was my second suspicion after the power, but immediately after the PC boots up the lowest temp reported by the DSATX is +8. This weekend i will try the voltage at the DSATX, then try a hard reset. Hopefully the problem isnt my serial cable somehow killing the DSATX but its been working perfect since i first got it
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    Mod - iPad Forums RipplingHurst's Avatar
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    Is that the one from MarcelIP? It does not work for me with hybrid sleep it's better than the brainstem as it lets the computer boots and it wakes the dsatx from off. But it does crashes sometimes. I blame my board (DG45FC).

    I would also put a thermometer overnight, one that could record the low temp and the time (easy for me to say, I have one right here in front of me :-)).

    Because that's when the DSATX turns off, right, not when the computer boots and all the juice is flowing.

    Also, I did have a faulty/loose connector once, and that gave away about .5v. I shortened the cable and soldered the connector and the reading is now closer to what the battery reads, but it's still off by some.

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    Quote Originally Posted by RipplingHurst View Post
    Is that the one from MarcelIP? It does not work for me with hybrid sleep it's better than the brainstem as it lets the computer boots and it wakes the dsatx from off. But it does crashes sometimes. I blame my board (DG45FC).

    I would also put a thermometer overnight, one that could record the low temp and the time (easy for me to say, I have one right here in front of me :-)).

    Because that's when the DSATX turns off, right, not when the computer boots and all the juice is flowing.

    Also, I did have a faulty/loose connector once, and that gave away about .5v. I shortened the cable and soldered the connector and the reading is now closer to what the battery reads, but it's still off by some.
    same cable and same motherboard lol. I have an idea though.. i'll plug it into my usb hub that turns off when the ACC line goes low.. that way its off for hibernation/resume. That could very well be it. Thanks!
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    Mod - iPad Forums RipplingHurst's Avatar
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    Cool, let me know what you'll find!

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