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  • Need help with OPUS problems

    I'm new here and I've done my searches but can't seem to find a solution to the problem I'm having with my OPUS 90w PS. When I first installed it I got nothing from it. Not even the blinking green light to show that it was in standby. I double checked all of the connections a second and third time. After pulling everything apart and redoing it a fourth time it finally gave me the blinking green light (.1 sec ON, 2.5 sec OFF). When I started the car the PC wouldn't start. The fans spun for about a second and then nothing, paused for a few seconds and then the fans spun for another second and nothing. It kept doing this, but it wouldn't start the PC. I redid it a fifth time and got absolutely nothing. Not even the blinking green light from the OPUS. It seems that sometimes I get the blinking light and sometimes it doesn't. Very odd. All of the connections seem to be firm

    Here are the specs of my system:
    EPIA MII10k
    512MB ram
    60GB laptop HD
    Slim DVD Drive
    DLink Airplus WiFi card
    Rayming TripNav GPS mouse
    Lilliput 7" VGA Touchscreen

    I have 8g wire running from the battery to a distribution block which splits the power to my amp (Sony 4x75 amp) and to the OPUS. The ground wire is bolted to the same ground location as the amp. The blue ACC wire is connected to the same wire as the amp turn on wire.

    Trying to figure out if I have a defective OPUS or is there something else I need to check?

    Thanks,

    Jeremy

  • #2
    Try using a volt meter and check if the psu is geting 12V on the input leads. (blue if the ignition is on) If you are geting 12V on the red lead and the power supply is not blinking, check the fuse. If the fuse is ok then you have a defective unit. Make sure you connected the green and white wire to your power on pins of your mother board (pin6&8 i believe watch out for polarity, green is positive) if you do get to the part where the supply goes in to stdby mode ofcorse.(1 blink every 2.5sec) Just to make sure (because weve seen people do this) your input leads are on the big white connector which is located by the yellow coil (inductor), not the smaller one between the fuse and jumpers?
    I'll spout simplistic opinions for hours on end.
    Ridicule anyone who disagrees with me,
    and generally foster divisiveness,
    cynicism and lower level of public dialog!

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    • #3
      Thanks KaiTech for your reply. This morning I reinstalled it again (after my post). I finally have it blinking like it should. I'm not sure why though because I installed it the same exact way each time. I'll check the blue wire for 12v tonight when I get home from work. I know I have 12v on the red wire. The fuse is OK and the green/white wire is connected properly. The input leads are also connected correctly. I'm just hoping that I don't have a defective unit because everything seems to be connected right. Is there anything else I should try?? anyone else have this problem??

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      • #4
        Try powering it on without any other devices, just what is necesary. And keep an eye on the LED what its doing after you put 12V on the ACC wire. How many blinks...
        I'll spout simplistic opinions for hours on end.
        Ridicule anyone who disagrees with me,
        and generally foster divisiveness,
        cynicism and lower level of public dialog!

        Comment


        • #5
          One more thing. Try connecting the power supply without the distribution block, maybe thats where the problem is.
          I'll spout simplistic opinions for hours on end.
          Ridicule anyone who disagrees with me,
          and generally foster divisiveness,
          cynicism and lower level of public dialog!

          Comment


          • #6
            you say,

            The blue ACC wire is connected to the same wire as the amp turn on wire
            try turning on your cd player and then booting the pc, most of the time the blue wire is connected from you stereo to amps and this connection is usually referred to as a remote wire, the ACC line is connected to your ignition, try looking on your wiring harness of your stereo. the wire might even be labeled, it usually a red wire that is of a lesser guage than the yellow (+ lead) and the black (- lead) wire

            hope this helps

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            • #7
              If you did this already forgive me, its late and I skimmed the post. Try finding a new ground spot....the ground wire is crucial with any electrical job. It wont hurt, and can help narrow down if its the actual unit or your wiring.
              [------X---] 70% done, though that number goes up and down all the time

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              • #8
                Yeah, the blue wire should be separately, especialy because the amp at startup can make the voltage on the wire go severely down. Besides youll probably get a nasty sound if you turn on the amp at the same time... Thats what the aditional connector is for on the Opus 90W, remote trigger (option). It sends a pulse to your amp after your PC starts booting.
                I'll spout simplistic opinions for hours on end.
                Ridicule anyone who disagrees with me,
                and generally foster divisiveness,
                cynicism and lower level of public dialog!

                Comment


                • #9
                  I finally got everything to work. I pulled it all apart and put everything back together again, checked the voltages on the leads and got 12.55 volts on the red lead and 12.48 on the blue lead (with the IGN on ACC). The black lead is connected to a solid ground point. I didn't do anything differently, but somehow it's now working. The only thing I can think of is maybe there was a bad connection somewhere. Thanks for all the helpful replies. Hopefully this problem doesn't come back.

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                  • #10
                    Why is it that all my problems are just like that, even when they're resolved I'm never sure they won't come up later.

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                    • #11
                      `ve seem to have the same problem i posted this a while back and got no def answers
                      I`ve just got a in car pc which i did have running off a 12v system from indoors in which i was checking that it was running alright........which it was...then i placed a slimline dvd in the correct slot and installed it and it was up and running ... Then i started the pc a little later on and it was ok ...went to reboot and the pc shut down but now won`t fire up the power supply is a opus ATX DC-DC 90w and all the pc is doing is giving me 3 flashes on the power supply board and turning the fans whilse doing so.
                      I read the guide and it says that this indacates not getting enought power but i`ve dissabled every thing that would take the power ie/ dvd/sound card.
                      Please can someone help us.......and this is before it`s in the car
                      I checked the power and the only readings that i`m getting is :- 4.91 v from power on . 4.96v on +5v standby.

                      This is the system:-


                      Nehemiah Epia Mini-ITX Motherboard
                      512 mb ddr pc2100 Dimm
                      Black Morex Cubid 2699r Mini-ITX Case
                      Seagate 40 gb 2.5" laptop hard drive
                      opus ATX DC-DC 90w power supply
                      Creative Audigy 2 sound card
                      running windows xp
                      panasonic SR-8176 Slimline DVD
                      7" Xenarc 700TS Touch screen

                      MANY THANKS JAMES

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