Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: Can the M2 PSU use input from another PSU to power on and off?

  1. #1
    FLAC WuNgUn's Avatar
    Join Date
    Sep 2007
    Posts
    1,351

    Can the M2 PSU use input from another PSU to power on and off?

    I use my M2 to power my monitor and USB hub in the dash, and it's setup currently to monitor the ignition for ON/OFF...except this is draining the battery too fast (M2 + OPUS for the PC).
    I want to run a lead from the OPUS power output to the M2 to trigger the M2's ON/OFF state...
    But it's critical that the M2 stays powered the whole time the OPUS is on (including shutdown sequence) as to not interupt the USB device power...

  2. #2
    MySQL Error soundman98's Avatar
    Join Date
    Jan 2008
    Location
    on the border of northern IL/IN
    Posts
    5,820
    yes, it should work fine.

    the only problem i see is the 5sec startup delay that the m2 has...

  3. #3
    FLAC WuNgUn's Avatar
    Join Date
    Sep 2007
    Posts
    1,351
    Is that delay always there, even when it is in ATX push button mode?

  4. #4
    MySQL Error soundman98's Avatar
    Join Date
    Jan 2008
    Location
    on the border of northern IL/IN
    Posts
    5,820
    i believe it is always there, and the only way to remove it was that custom firmware that someone developed..

  5. #5
    FLAC WuNgUn's Avatar
    Join Date
    Sep 2007
    Posts
    1,351
    ****...these M1/2/3/4 PSU's are garbage!!

  6. #6
    FLAC WuNgUn's Avatar
    Join Date
    Sep 2007
    Posts
    1,351
    Manual...

    When all config jumpers are removed, M2-ATX-HV will be in the “dumb PSU
    mode”, no ignition timing, no HARDOFF. M2-ATX-HV will send a gratuitous “ON” pulse
    to the M/B when power is applied for the first time...

    Since it's not hooked up to a mainboard, will the M2 actually power on and off then?

  7. #7
    MySQL Error soundman98's Avatar
    Join Date
    Jan 2008
    Location
    on the border of northern IL/IN
    Posts
    5,820
    that's why i use a dsatx....

    that section is just talking about the J7 jumper activity..

    that might be the way you need to set it up, but you would need to add a relay to cut power the +12v constant line so the opus can control it.

  8. #8
    FLAC WuNgUn's Avatar
    Join Date
    Sep 2007
    Posts
    1,351
    Jeez...maybe I'll just make my own 12V and 5V regulator and forget the M2 altogether!

    Or like you say, a relay controlled by the mainboards PSU.

  9. #9
    Confusion Master
    Auto Apps:loading...
    Enforcer's Avatar
    Join Date
    Sep 2003
    Location
    If you go down to the woods today, You're sure of
    Posts
    14,593
    Quote Originally Posted by WuNgUn View Post

    Since it's not hooked up to a mainboard, will the M2 actually power on and off then?

    No, but can be,

    You will need to short the PWR OK pin to gnd.

  10. #10
    FLAC WuNgUn's Avatar
    Join Date
    Sep 2007
    Posts
    1,351
    Done that already...

Page 1 of 2 12 LastLast

Similar Threads

  1. Which power supply to use for a Pc with 19v input
    By hailrazer in forum Power Supplies
    Replies: 3
    Last Post: 08-20-2009, 06:40 AM
  2. inverter input power?
    By archaic0 in forum Power Supplies
    Replies: 2
    Last Post: 04-30-2007, 04:00 PM
  3. Switching Power Input
    By Anshu in forum General Hardware Discussion
    Replies: 8
    Last Post: 06-28-2006, 10:02 PM
  4. DC input to ATX power supply
    By mikemccoy in forum Power Supplies
    Replies: 11
    Last Post: 01-26-2006, 10:55 AM
  5. Thoughts regarding power input?
    By Skraggy_uk in forum General Hardware Discussion
    Replies: 2
    Last Post: 03-09-2004, 03:22 AM

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
  •