Results 1 to 6 of 6

Thread: PSU acting weird.. broke?

  1. #1
    Variable Bitrate
    Join Date
    May 2006
    Location
    Belgium
    Posts
    261

    PSU acting weird.. broke?

    ok, just reinstald my car pc in another car after i crashed my car.
    everything passed the tests in my house, so i connected everything in the car. the pc powered on, but after 10 seconds it shut itself down.
    checkt al my voltages:
    12.5v at my car battery
    12.5v at my wires going in my powersupply (OPUS 150W DC-DC), untill i put them in... then they only give 3v.
    disconnected all the wires going out of the PSU, but still only 3v.
    tried another PSU (some "morex" psu) and this acts the same...
    are both the PSU's broke? or is this normal?
    maybe the fuse inside my OPUS fuse is broke?
    plz help, don't know what to do...

    Greetz

    Dj NRG

  2. #2
    Neither darque nor pervert DarquePervert's Avatar
    Join Date
    Apr 2004
    Location
    Elsewhere
    Posts
    13,949
    If the fuse inside your opus were blown, you wouldn't get it to power up at all.

    No, it's not normal for the lines to read 3v.
    Are you measuring the 12v constant line or the ACC line? Or both?
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

  3. #3
    Variable Bitrate
    Join Date
    May 2006
    Location
    Belgium
    Posts
    261
    Quote Originally Posted by DarquePervert View Post
    If the fuse inside your opus were blown, you wouldn't get it to power up at all.

    No, it's not normal for the lines to read 3v.
    Are you measuring the 12v constant line or the ACC line? Or both?
    the constant 12v gives me 3 volt once i put the fuse in (so once power runs towards it)
    haven't checked the acc line, but i think it will give me 12v...
    I'll check it...

    Greetz

    Dj NRG

  4. #4
    Neither darque nor pervert DarquePervert's Avatar
    Join Date
    Apr 2004
    Location
    Elsewhere
    Posts
    13,949
    That's very weird, I agree.
    If the fuse is blown, it's pretty easy to tell. There's a strip of metal inside the fuse. If the fuse is blown, there will be a break in that metal. If the fuse is good, that metal will be continuous.

    Here's a couple of photots of a blown fuse side-by-side with a god fuse.

    Blade style:

    Glass style:

    Granted, you may not see the scorch marks on the fuse. Look at the ribbon of metal inside the fuse to see if it's broken or not.
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

  5. #5
    Variable Bitrate
    Join Date
    May 2006
    Location
    Belgium
    Posts
    261
    it gives 12.5v when i don't plug it in to mu PSU. can't measure what it gives when it's plugged it without getting the PSU out of the car (it's installed close to the side of my trunk)

    Greetz

    Dj NRG

  6. #6
    Variable Bitrate
    Join Date
    May 2006
    Location
    Belgium
    Posts
    261
    fuse is ok, just checked that.
    when i plug in the plug from my psu (12v, ground and acc), my acc gives me 4 volts, and my 12v gives me 3v (2.8v)

    strange strange strange...

    Greetz

    Dj NRG

Similar Threads

  1. Replies: 5
    Last Post: 06-20-2007, 01:21 PM
  2. Mastero 3.5 12v-12v PSU KIT fs
    By SteveC in forum Classified Archive
    Replies: 0
    Last Post: 09-28-2004, 11:04 AM
  3. Powering up normal ATX PSU
    By KimaX in forum Power Supplies
    Replies: 5
    Last Post: 09-28-2004, 12:08 AM
  4. Morex 80w PSU not working?????
    By NiN^_^NiN in forum Power Supplies
    Replies: 2
    Last Post: 09-04-2004, 11:52 PM
  5. mircoATX PSU?
    By ODYSSEY in forum General Hardware Discussion
    Replies: 7
    Last Post: 03-12-2001, 02:30 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
  •