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Thread: Desktop in truck questions and PW-200-M question.

  1. #1
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    Desktop in truck questions and PW-200-M question.

    Hey guys, newbie here and I want to throw a computer into my s10!
    I was wondering if a PW-200-M supply would be able to power an old-ish emachines computer-AMD athlon cpu, 512mb ram, and a 80gb hd (Probably upgrade to a larger one). Plane is to gut it from the case and make a new box for it, and put it under the seat.

    Then put a 7" touchscreen where my radio is mounted, and then a headphone jack to rca cable hookup with a splitter (Making 2 sets of 2 rcas) to my subs amp, and my mids/high amp.

    But I need to know if that supply will be sufficient enough or if I would need a larger one (On a budget, this will be a slow build as I have the money to do so.)

    If I need a larger supply, What would be best? (Cheapest and work) Either a supply or regulator or? I would prefer not to use an ac/dc converter because the stock supply is large and I need more space then i have already lol.

    Another question with you car puter guys, When you have a pc setup, Do you have a head unit or do you use your pc as one like i plan? Also do you keep the normal cd/dvd drive the pc uses? (To upload new software play dvds/music etc?)

    Any help would be great!

  2. #2
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    Well, I've been on this site ALL day, gathering information.

    Apparently those picopsu's (pw-200-m) are pieces of crap, because they are unregulated. (SUCKS because all other psu's are $80+)
    I did find a few china "M2 atx's" But I think they are fakes, and still $50.

    The touchscreen I am looking at is a china ebay unit, but looks decent for $140.

    I have the desktop MB out of the case, and ready to make a new one (Thinking lexan/plexi)

    I have read that the desktop HDD are not the way to go, but rather the 2.5 laptop hdd's. I'd prefer to use my desktop HDD as thats what I have available, but i also have an 80gb 2.5, but unsure of its condition.

    Still need to know about the music system, How you guys have your set up, using a headunit or straight to amps? (And if straight to amps if i could do a headphone to RCA's with 2 splitters to make 2 sets of rca outs (one for subs, one for mids and highs) plugging the headphone end of the rca straight into the motherboard.

    Also would like to know about softwares-Freeware preferably. A good music software is most vital to me.

  3. #3
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    Do not go the cheapest route on your power supply. You will end up with all kinds of gremlins over the course of a car PC installation which will all be tied to the lack of adequate power for your system. Based on the fact that you're using a desktop motherboard/CPU combo, i'd suggest bare minimum a genuine m2. I ran an athlon 2800 (think it was 2.2ghz) some years back and even with the m2 and extra point of load power supplies i never had a stable environment.
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    Quote Originally Posted by Sonicxtacy02 View Post
    Do not go the cheapest route on your power supply. You will end up with all kinds of gremlins over the course of a car PC installation which will all be tied to the lack of adequate power for your system. Based on the fact that you're using a desktop motherboard/CPU combo, i'd suggest bare minimum a genuine m2. I ran an athlon 2800 (think it was 2.2ghz) some years back and even with the m2 and extra point of load power supplies i never had a stable environment.
    Does a desktop mb and cpu really eat that much juice? I mean, Whats an amd athlon 1600 take up? 65 watts max? Then the mb maybe 15w at the most, and a hard drive depends if i go with a desktop/laptop hd but I dont see how that would take up 160 watts? Maybe I'm missing something.

    What mb and cpu's do you guys use? I was under the impression you guys used a regular desktop type mb and cpu?
    The only reason I'm considering doing a carpc is because I though I could get away with it rather cheap considering I had an extra desktop pc sitting around and thought I could get a cheap ebay psu/touchscreen

  5. #5
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    ^ but because you didn't list any specific model numbers, be sure to check a pc power calculator to make sure that the m2 is sufficient for your needs.

    hdd's: in theory, 2.5" drives have less moving mass, so in theory are better. the reality is that there has not been any proof here that 2.5" drives are better then 3.5 drives--in one case, a single 3.5" drive outlasted 2 car wrecks-- the cars were totaled...

    sound: you can do it either way. i run 'headless', but many other members keep a HU installed for a backup audio source, or for easier integration of am/fm..

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    What's your "headless" setup? How do you have it hooked up?

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    no head unit.

    i am a little different because i installed a carpc for a full-active audio setup-- where the carpc controls what frequencies go to which speakers, but the concept-- where you add soem 3.5mm-to-rc adapters, and split the signal to the different amps is the easiest method.

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    So my method will indeed work? I was worried the sound would be too diluted by the time it reached the amps. Your setup sounds interesting though, how did you accomplish that?

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    your method will for sure work with aftermarket amps with a gain control. because factory amps don't have a gain control to adjust for different input sensitivity, they can be less consistent.

    as for how i accomplished my setup--check the posts in the "high end car audio section"

  10. #10
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    So I have 2 emachines desktops, one with an amd 1600+ xp CPU the other with an amd sempron. Would an opus 150 work for one of these?
    Or I have an HP desktop with a p4 CPU.

    Unfortunatey since they're name hrand desktops I can't underclock/volt the CPUs

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