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  • Opus + Laptop + accessories? Or better solution?

    Yup, I 'd but had a tough time sifting through the hundreds of posts. My searc syntax may not be wonderful.. but the point is this:


    I am running a 650 mhz Gateway P3 laptop as the foundation. I have a 12 volt power supply for the unit, but i believe the laptop input voltage is 18v.

    I have the following accessories: SB Extigy NS (The USB Soundcard, sp?), USB slim line cd/dvd drive, USB keyboard, USB pointing device, USB 802.11b and a USB hub

    I plan on running a Xenarc screen, possibility of a couple gaming remotes and/or an external hard drive... possibly a GPS. Heck, I want the ability to plug and play lots of toys as needed.

    I thought of using the opus 90w device to power the laptop (12v) using the 5v line to power the USB devices... but it seems that I may need more amperage for the 5v line...

    Any ideas? Is there a better way?
    Take my advice: Do not try to build a system that includes EVERY feature. Start with the basics, build it to a bug free state, and THEN add on.

  • #2
    Originally posted by Will Albers
    I thought of using the opus 90w device to power the laptop (12v) using the 5v line to power the USB devices... but it seems that I may need more amperage for the 5v line...

    Any ideas? Is there a better way?
    *SIGH*
    Let's think this through, n00b.

    The Opus is an ATX power supply. Laptops aren't ATX. So using the opus to power your laptop probably ain't gonna happen.
    Your best bet is to get an auto adapter for your particular laptop and wire that to the battery. Don't forget to fuse that line.
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

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    • #3
      Sigh yourself there perv...

      This noob crap is insulting and inappropriate.

      The point of using the opus to power the laptop was that i could connect the 12v adapter power to the 12v line of the power supply creating a clean input regardless of voltage... Would allow the laptop to survive cranking as well as provide a nice clean regulated 12 v. I realize the 12 v adapter for the laptop is *supposed* to provide a clean signal, but i have been sorely disappointed. It does not handle fluctuation in voltage very well at all.

      As an added bonus, i could use the 5v rail to power my USB items.

      So perv, how about a little creative thinking instead of egotistical arrogance? If you have a better set up idea to supply power, please let me know.
      Take my advice: Do not try to build a system that includes EVERY feature. Start with the basics, build it to a bug free state, and THEN add on.

      Comment


      • #4
        *Stands and starts a slow clap for Will*
        Mazda 3, meet Mac Mini. Mac Mini, meet Mazda 3.
        Mac Mini in-car coming soon.
        Progress: [||||||||||||||||||--] (90% Complete,Initial install is complete, now adding on and fine tuning.)
        Progress Blog: http://mikemazda3.blogspot.com/

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        • #5
          how many watts is your 18v laptop adapter?

          http://www.mp3car.com/store/product_...products_id=68

          that carnetix psu sounds like what yer lookin for, if your laptop only needs 60 watts @ 12v... otherwise the description sounds like it fulfills the needs you describe, and its a hair cheaper than the 90w opus

          hope this helps!

          (though i could have just put up the "search" emoticon, followed by the "middle finger" emoticon, as well as a "n00b" one... but that would negate the purpose of the forum... AHEM perv)

          Comment


          • #6
            Originally posted by Will Albers
            Sigh yourself there perv...

            This noob crap is insulting and inappropriate.

            The point of using the opus to power the laptop was that i could connect the 12v adapter power to the 12v line of the power supply creating a clean input regardless of voltage... Would allow the laptop to survive cranking as well as provide a nice clean regulated 12 v. I realize the 12 v adapter for the laptop is *supposed* to provide a clean signal, but i have been sorely disappointed. It does not handle fluctuation in voltage very well at all.

            As an added bonus, i could use the 5v rail to power my USB items.

            So perv, how about a little creative thinking instead of egotistical arrogance? If you have a better set up idea to supply power, please let me know.
            Dude, noob insults aside, what the hell kind of laptop do you have that takes in 12V? most laptops take 14.2V and higher, so the "clean" 12V signal will do nothing for them. Well, may be warm up the battery a little.
            I have found you an argument; I am not obliged to find you an understanding.

            Comment


            • #7
              ? he said it takes in 18v... he has a 12v car adapter

              Comment


              • #8
                Originally posted by therussman2002
                ? he said it takes in 18v... he has a 12v car adapter
                I don't understand it, if you take a car adapter for a laptop, it will already regulate the voltage as necessary. If he needs 5V line in addition to powering laptop, I am pretty sure it will be cheaper to get a car adpater for a laptop and a separate 5V power supply or step down converter.
                I have found you an argument; I am not obliged to find you an understanding.

                Comment


                • #9
                  Originally posted by Will Albers
                  I realize the 12 v adapter for the laptop is *supposed* to provide a clean signal, but i have been sorely disappointed. It does not handle fluctuation in voltage very well at all.
                  ...

                  Comment


                  • #10
                    I see where he's going with this, he wants to use the atx power supply as basically just a power supply for both 12v & 5 v, I guess the 3.3v rail wouldn't be useful much. he can short the p-on leads & the power supply will...well.....supply power.

                    I see why he is concerned about running his 18v off of the regulated 12v rather than just ign, because during crank when the battery voltage drops down towards the 10v range, he won't have to worry because his 18v adaptor will still see a good 12v.

                    what he is not realizing though, is that by using a laptop he doesn't have to worry about that, because one of the biggest benifits of using a laptop in a car install is that the laptop itself has a BUILT IN TANK CIRCUIT, called a battery, & even if the voltage dipped while cranking it wouldn't matter at all......unless you ripped the battery out of the laptop, which defeats this benifit entirely.

                    If the laptop battery is still intact I wouldn't waste all of that clean regulated 12v on running the laptop, & with that in mind, he may want to reconsider using that atx power supply in the first place, BUT i do agree that an atx power supply is still a great supliment to a laptop install, & while some may see it as wasteful because it could be done cheaper, you can also look at it as a great all in one suplimental power supply for the lcd, usb hubs, & any other add on periferals, if he doesn't have to use the power supply to run the 18v adaptor this will leave him plenty of power for everything else, not so bad I think & I am planning another install that will use an opus 150 to supliment a centrino laptop install, the opus start up / shutdown control can be used to actually control the laptop if desired, & there will be plenty of power for any & all periferals that I can connect to this, but I already have the opus, I don't know if I had to go out & spend the $200 for it if I would look for another solution that would cost half that...........
                    MY NEWEST INSTALL:modded infiniti fx with big screen

                    first windows carpc install........my liquid cooled LVDS screen :D

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                    • #11
                      My suggestion is:

                      1. Power your notebook with this babe http://www.cartft.com/carpc/catalog/il/316


                      2. I don’t know if $$ is really a matter for you… nevertheless the OPUS is kind of expensive to just get the 5v line out of it, so I suggest to get a power inverter to power up an ATX power supply.
                      - CarPC: Lilliput 7" Touchscreen, VIA EPIA M10000, 512 MB, 40 GB HDD
                      - Install: 90%

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