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Thread: Grounding CPU cleared buzz

  1. #1
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    Grounding CPU cleared buzz

    Just to let those who may be having this problem know, like everyone has been saying, properly grounding the CPU should get rid of your buzz.

    My setup is like this. I have my PC plugged into an inverter under my seat. The inverter plugs into the lighter socket. The PC is in the trunk. two long 1/8" cables plug the head unit into the line out on the CPU.

    OK, to remove the noise, I got a 14gauge cable, and two end clips. you know, the ones that kinda look like this ==0 I crimped them to each end of the wire. I then scraped the paint off a spot in my trunk, and screwed the clamp onto the car. I then screwed the other end of the wire to a screw on my CPU's case. Before attaching the wire, i had an annoying buzz. As soon as the cable touched the metal of the case, the buzz went away.

    I did not need to ground my inverter.

    Oh, on a side note, I was told by my car stereo store that they can wire the positive end of the power to the On/Off wire of my head unit. That way, when it shuts off when the car turns off, so will the inverter.

  2. #2
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    Obviously you havn't been reading the forum much, or didn't search for an answer to that problem. We have been telling people how to solve that problem for years.

    BTW I would be hesitant to keep referring, to the computer as a "CPU" a CPU is the processor of the computer, and we wouldn't want to confuse people, and have them attaching wires to the CPU itself.
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  3. #3
    FLAC
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    thats what got me to read this thead!!!!

    SirCyRo, nice to hear of your success, but seriously this is old-hat round this forum....
    Project - GAME OVER :(

  4. #4
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    uh

    Uh gee, thanks maveric. I would have never known that the CPU is the processor. Picky picky picky.

    yeah yeah, I know its old hat, but I keep seeing questions about it, but never a clear cut answer. I figured I'd put my 2cents in.

    But grounding my PC (see maveric, I can call it a PC, hahaha) presents a problem. Now its hardwired to the car!!! I tend to take it out a lot when I want to add songs to it. I don't have the cash right now to put a wireless NIC in it, and get a wireless hub. Until then, I need to find a way to easily unground it.

    Maybe I can get one of those quick connectors from Radio shack. Or maybe I'll just tape it on with some electrical tape. hehe

  5. #5
    Low Bitrate InvisiBill's Avatar
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    Why not just stick a simple quick-disconnect (a male and female connector) in the ground wire?

    And I do remember a while back where people claimed to have increased stability when overclocking by placing a fanned-out wire between the CPU and heatsink and grounding the other end. This was back in the 300-400MHz K6-2 days. I'm sure most people understood what you meant, but it's best to use proper terminology since people are going to screw stuff up enough without your help. =)

  6. #6
    FLAC MP3DUB's Avatar
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    The fact that your inverter works means that its grounded (ie you have a positive and neg/grn connection to it). The usual suggestion is to ground both the computer and the inverter to the same place, so as to avoid any potential voltage differences. And as invisibill said, just add a simply spade connector in the middle of the ground line, its worked for me without a hitch.
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  7. #7
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    hey .... which ground

    which ground from the computer are u putting to the cars chassis. is it the prong from the power cord , or is it one of the black wires from the power bar things that hook up to your mobo and drives and acces. ?
    werd to ya momma

  8. #8
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    Re: hey .... which ground

    Originally posted by neli_boy1
    which ground from the computer are u putting to the cars chassis. is it the prong from the power cord , or is it one of the black wires from the power bar things that hook up to your mobo and drives and acces. ?
    It is just a wire connected to the frame of the case, going to the car chassis.
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  9. #9
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    Well, if you are using a DC-DC power supply you can ground teh case to the chasis with the power line.. :P This is was I did, but still have noise.. :P ohh well.. lol
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