Page 1 of 3 123 LastLast
Results 1 to 10 of 27

Thread: M4 ATX Turn On Problem

  1. #1
    Variable Bitrate Fox_Mulder's Avatar
    Join Date
    Apr 2004
    Location
    Melbourne, Australia The Truth Is Out There
    Posts
    317

    M4 ATX Turn On Problem

    So I have an M4 ATX I got from the mp3car.com store.
    I was trying to test it to see if I had the same problem ArcaneDreams had so I hooked it all up according to the online manual (pins 6 & 7 to the motherboard power pins) and connected it to the car battery. I applied 12v from the car battery to the ignition connection on the m4 and the computer does not power up. I am using the 5sec/1min mode (dip switch 1 is on, others are off).

    What happens is when the ignition is applied, the led blinks rapidly for about 3 seconds then starts blinking every second - but the motherboard does not power up.

    I can manually start the motherboard by bridging the power on header briefly.
    The system has been tested on a 200w power supply so power draw shouldn't be an issue.

    Does this sound like a faulty unit? Or is there something I havent done right. The M4 doesn't mention anything about their being polarity on the motherboard power pins, but I tried it either way and got nothing.

    edit: The 24 pin ATX connector and 4 pin P4 12v connector are all plugged in.
    Fox Mulder
    2004 Toyota MR2
    Intel Dual Core 2.0Ghz 1Gb DDR2 160GB SATA2 M4ATX Lilliput 7" TS BU353 DiNovo Mini Car2PC ODBII Bluetooth HF 16x2 Character LCD

  2. #2
    Admin. Linux loser.
    Auto Apps:loading...
    Bugbyte's Avatar
    Join Date
    Sep 2004
    Location
    Corning, NY
    Posts
    7,364
    Blog Entries
    2
    Can you use a multimeter to see if you are getting a pulse on your startup line?
    Quote Originally Posted by ghettocruzer View Post
    I was gung ho on building a PC [until] just recently. However, between my new phone having internet and GPS and all...and this kit...Im starting to have trouble justfiying it haha.
    Want to:
    -Find out about the new iBug iPad install?
    -Find out about carPC's in just 5 minutes? View the Car PC 101 video

  3. #3
    Constant Bitrate
    Join Date
    Mar 2008
    Posts
    162
    I had that happen a couple of times.

    After the LED blinks rapidly, it is supposed to send the pulse. For some reason it acted like it couldn't send the pulse..or something idk.


    Does this happen every time? Try disconnecting the power, waiting 10 min, then trying again.

  4. #4
    Newbie
    Join Date
    Oct 2007
    Location
    Houston
    Posts
    54
    Ha. See my post in this forum from yesterday. Same issue.

    Ack..... When will it all end???

  5. #5
    Variable Bitrate Fox_Mulder's Avatar
    Join Date
    Apr 2004
    Location
    Melbourne, Australia The Truth Is Out There
    Posts
    317
    Quote Originally Posted by ArcaneDreams View Post
    I had that happen a couple of times.

    After the LED blinks rapidly, it is supposed to send the pulse. For some reason it acted like it couldn't send the pulse..or something idk.


    Does this happen every time? Try disconnecting the power, waiting 10 min, then trying again.
    Happens everytime, tried playing with the dip switches, in all modes it does this.
    Fox Mulder
    2004 Toyota MR2
    Intel Dual Core 2.0Ghz 1Gb DDR2 160GB SATA2 M4ATX Lilliput 7" TS BU353 DiNovo Mini Car2PC ODBII Bluetooth HF 16x2 Character LCD

  6. #6
    Variable Bitrate Fox_Mulder's Avatar
    Join Date
    Apr 2004
    Location
    Melbourne, Australia The Truth Is Out There
    Posts
    317
    Quote Originally Posted by PacketSniffer View Post
    Ha. See my post in this forum from yesterday. Same issue.

    Ack..... When will it all end???
    Seems to be a similar issue, although with mine, no fans or anything powers up, it stays dead untill I manually bridge the power connectors then it comes to life. Sounds like I've got a dud unit as well. Damn got to return this

    Regarding the multimeter, I put it into resistance mode, and it stays on infinite resistance during which time the motherboard should be pulsed, I tried it on voltage mode and got 0v throughout.

    What would be the process on getting a replacement unit from the mp3car.com store?
    Fox Mulder
    2004 Toyota MR2
    Intel Dual Core 2.0Ghz 1Gb DDR2 160GB SATA2 M4ATX Lilliput 7" TS BU353 DiNovo Mini Car2PC ODBII Bluetooth HF 16x2 Character LCD

  7. #7
    Admin. Linux loser.
    Auto Apps:loading...
    Bugbyte's Avatar
    Join Date
    Sep 2004
    Location
    Corning, NY
    Posts
    7,364
    Blog Entries
    2
    You need an RMA from them. Either call or email.
    Quote Originally Posted by ghettocruzer View Post
    I was gung ho on building a PC [until] just recently. However, between my new phone having internet and GPS and all...and this kit...Im starting to have trouble justfiying it haha.
    Want to:
    -Find out about the new iBug iPad install?
    -Find out about carPC's in just 5 minutes? View the Car PC 101 video

  8. #8
    Variable Bitrate Fox_Mulder's Avatar
    Join Date
    Apr 2004
    Location
    Melbourne, Australia The Truth Is Out There
    Posts
    317
    I've sent an email to mini-box to see if there is anything I can do to fix this problem, but if all else fails it'll have to be sent back.
    Fox Mulder
    2004 Toyota MR2
    Intel Dual Core 2.0Ghz 1Gb DDR2 160GB SATA2 M4ATX Lilliput 7" TS BU353 DiNovo Mini Car2PC ODBII Bluetooth HF 16x2 Character LCD

  9. #9
    Variable Bitrate Fox_Mulder's Avatar
    Join Date
    Apr 2004
    Location
    Melbourne, Australia The Truth Is Out There
    Posts
    317
    I tested it just now, same problem, then I shorted the motherboard pins whilst the m4 was connected it booted up as expected. Then I shut down the computer and removed the ingition wire. I then reconnected the ignition wire and the computer came on!
    I then disconnected the ignition wire and the computer took 1 minute before it turned off.

    So then I applied the ignition wire again and the computer came on, removed the ignition wire and the computer turned off within 5 seconds which is what is expected as I have it on the 5 sec/1 min mode. Tried ir again and got the same results.

    It seems to be working fine now, so I removed the 12v connection all together from the M4 (vin and gnd and ignition). I then reapplied vin gnd and ignition and I had to go through the same procedure above to get it to work.

    So it seems the M4 needs a bit of "setting up" to do. Once it is "set up" as long as it isn't disconencted from Vin or Gnd it should be ok.

    Edit:
    Actually even if it is always conencted to Vin the problem is still there. The probem has been narrowed down to this -
    In between the 5 seconds and the 1 minute before the M4 has entered the HARDOFF state, the pulse is sent to the motherboard when Ignition has been applied. Once it has entered the HARDOFF state, no matter what happens to ignition, the pulse is not sent.
    Fox Mulder
    2004 Toyota MR2
    Intel Dual Core 2.0Ghz 1Gb DDR2 160GB SATA2 M4ATX Lilliput 7" TS BU353 DiNovo Mini Car2PC ODBII Bluetooth HF 16x2 Character LCD

  10. #10
    Variable Bitrate Fox_Mulder's Avatar
    Join Date
    Apr 2004
    Location
    Melbourne, Australia The Truth Is Out There
    Posts
    317
    A workaround is to set the bios to always turn on afer power fail thus avoiding the need for a button press to turn on the computer. But I've since discovered it always takes 1 minute for the m4 to send the off pulse to the motherboard, regardless of mode - Same problem ArcaneDreams was having.
    Fox Mulder
    2004 Toyota MR2
    Intel Dual Core 2.0Ghz 1Gb DDR2 160GB SATA2 M4ATX Lilliput 7" TS BU353 DiNovo Mini Car2PC ODBII Bluetooth HF 16x2 Character LCD

Page 1 of 3 123 LastLast

Similar Threads

  1. Not your typical flicker problem
    By JPuma in forum LCD/Display
    Replies: 17
    Last Post: 05-30-2007, 09:28 AM
  2. opus 250w atx problem.
    By dyeinbreed in forum Power Supplies
    Replies: 15
    Last Post: 11-22-2006, 11:58 PM
  3. Problem m2 atx and 3.5" hard drive
    By Mitski's Rider in forum Power Supplies
    Replies: 2
    Last Post: 10-05-2006, 11:52 AM
  4. Replies: 0
    Last Post: 12-08-2005, 10:41 PM
  5. AMP wont turn ON!! HEELP!
    By pdjafari in forum Car Audio
    Replies: 1
    Last Post: 10-15-2005, 07:43 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •