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Thread: Is my PC not getting enough power?

  1. #21
    Constant Bitrate vairu's Avatar
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    Quote Originally Posted by vairu View Post
    As always there is still 1 issue, i'm not sure how severe an issue this is but the PC is running fine, it's not an issue thats causing it not to run right. Since i don't have a switch in place to cut the constant 12v wire from the battery to the OPUS i've been unplugging the connector at the OPUS overnight just in case it cuts on for any reason. After the PC's been running tho and it shuts down fine, i unplug that connector and almost burn my damn fingers it's so hot. I feel the wire and the wire is a little warm for about 8"~ back then it's cold the rest of the way to the battery. I'm not sure if this is normal or what? The OPUS power connector has 3 8"~ long pieces of 12ga wire I would guess and the power wire then runs to a butt-connector then the rest of the wiring is the 8ga. The 12ga portion of wire is what is warm to the touch then once it hits the 8ga part it's cold. And the connector is really hot. Someone tell me this is normal! lol
    Anyone know^^?

  2. #22
    Maximum Bitrate crooper's Avatar
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    If a wire is warm or hot it means that it is carrying too many amps, and in your case the 8ga can handle it but the 12ga can't. I don't think your carpc should be drawing that many amps. You might want to cut off that connector and solder on a new one, maybe the wires are too thin and so it's heating up.

    Eh this is probably old news, but I'd be nervous about using such a heavy heatsink in a carpc, that's a lot of stress on the motherboard. I underclock my Barton 2500+ by 40% by reducing the fsb from 166 to 100. I can't boot my carpc without this underclock (M2ATX).

  3. #23
    Constant Bitrate vairu's Avatar
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    Quote Originally Posted by crooper View Post
    If a wire is warm or hot it means that it is carrying too many amps, and in your case the 8ga can handle it but the 12ga can't. I don't think your carpc should be drawing that many amps. You might want to cut off that connector and solder on a new one, maybe the wires are too thin and so it's heating up.

    Eh this is probably old news, but I'd be nervous about using such a heavy heatsink in a carpc, that's a lot of stress on the motherboard. I underclock my Barton 2500+ by 40% by reducing the fsb from 166 to 100. I can't boot my carpc without this underclock (M2ATX).
    If my CarPC were pulling too many amps would it kill the OPUS over time? I have a 20 amp fuse and it hasn't popped it but i think 20 amps is all that 12ga can pull through before it burns up right? Also, i don't use the Barton 2500 anymore since i bought the 35w chip that runs a lot slower, and i think i actually have that overclocked by having my FSB at 166 but it's been running fine for the last week and i've taken several long trips with it and no issues. It also has been very hot outside as well and i monitor the temps via SpeedFan and nothing gets hotter then 42 degree's C. It actually always shows my HDD temp with a blue colored arrow pointing downward, meaning it's running "cool". If anything was running hot it would show a red arrow pointing upward.

    I also need to get a capacitor so the damn PC will stay on if i crank the engine while the PC is already running. Sometimes it doesn't freeze the PC, sometimes it does ... it's weird lol. Eventually i do plan on still getting a bigger OPUS and using my 150w to power my screens only. Hopefully it all runs fine until i do get another OPUS tho

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