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Thread: what is the easist way delay my switch 12v for 2 seconds???

  1. #11
    Maximum Bitrate bertybassett's Avatar
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    @ Change yeah the power cable is maplin speaker cable. it should be more than enough for powering the carnetix or M1-ATX. The size of the cable is bigger than the wires supplied with the carnetix or M1-ITX.

    @ Shakes I'll try measuring the voltage when cranking and see if the computer drops 7.5v. Tried hibernate and stand by and they both reset.

    BTW the ignition wire is taped off the stereo ignition sire would that make any difference? Should I take a wire direct from the ignition it's self?

    Off to do some testing and I'll let you all know the results.

  2. #12
    Maximum Bitrate bertybassett's Avatar
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    I'm getting a full 10.5v under cranking so can't be a battery problem. Might be the car computer not coming out of stand by correctly. I'm going to remove the carputer and test in the home to see if it a software problem.

    After that it is a delay switch for testing.

  3. #13
    Maximum Bitrate bertybassett's Avatar
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    Just thought I'm only getting the problem after the computer computer has been left in standby for more that 4 hours. So I leave the carputer in stand by for 4 hours and test the voltage again and see what happens.

  4. #14
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    It does sound like it's an issue with the computer, not the power supply. Try the 4 hour thing in the car, then try it in the house with power from the wall socket. If there's no difference, it's got to be something with the PC.
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  5. #15
    Maximum Bitrate bertybassett's Avatar
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    yeah I'm starting to supect the PC or software more and more now. Going out to car to remove it as we speak. hopefully have some results in a few hours.

  6. #16
    Maximum Bitrate bertybassett's Avatar
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    the strange thing is the carputer works fine in doors off a 12v supply to the M1-ATX power supply. I simulate the ignition wire and boom out of stnad by it comes every time.

    Must be either battery, what ele can it be?

  7. #17
    Maximum Bitrate bertybassett's Avatar
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    Also noticed if I trun the ignition key to the power on mode the car stero comes on and the carputer will come out of standy by every time but if I try and crank the enigne the carPC will reset, strange no.

    I'm really starting to supect the battery now.

  8. #18
    Maximum Bitrate bertybassett's Avatar
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    just tested cranking with a battery charger connected the battery i know that dangerous but it's done now) and every time the carputer would survive cracking and come out of stand by fine.

    So in short I need a new battery. Ouch that's at least 150.

  9. #19
    Maximum Bitrate bertybassett's Avatar
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    BTW thanx to everyone who inputted help into this thread much appreciated, even if you didn't have the answer.

  10. #20
    FLAC shakes's Avatar
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    give hibernate a try again.

    standby requires constant power to keep the ram powered so you don't loose any data. hibernation writes what's in RAM to the hard disk so you can completely remove power.

    i'm thinking 1 of 2 things are happening.

    1. it's possible you don't have the 1260 or m1-atx set up properly, and they are cutting power to the PC a few minutes after you turn the car off. thereby killing power to the ram, thereby loosing your data, thereby causing the pc to reboot when it can't pull itself out of standby.

    2. if the 1260 and/or m1-atx ARE configured to operate in standby and keep power to the PC ... there's a good change 4 hours of supplying power to your PC is draining your batter enough that when you crank it after 4 hours it dips below 7.5v.

    Either way, Hibernate (or full shutdown) should solve both of these problems and is a good bit cheaper than a new battery.
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