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Engine noise
By: RutgerB Rank: Starfleet Lieutenant, Junior Grade Postings: 9 From: n/a	Posted: Mi Feb 04, 2009 - 12:13 I have an M3-ATX power supply in my car. In my audio I can hear the engine whine. How do I fix this? I searched the forum and obliviously I connected the power supplies - to the car chassis.
By: admin Rank: Starfleet Vice Admiral Postings: 463 From: Germany	Posted: Do Feb 05, 2009 - 12:38 An adapter like http://www.cartft.com/catalog/il/791 can help. Otherwise : For testing, did you powered the system already from outside the car ? (from other power source).
By: RutgerB Rank: Starfleet Lieutenant, Junior Grade Postings: 9 From: n/a	Posted: Do Feb 05, 2009 - 01:51 Yes, Didn't have the problem when I powered the system on a normal pc power outside my car. The noise I hear is sounds like it is coming from the engine, as the pitch increases as the engine RPM increases. Such an adapter sounds good, though I thought the power input to my M3-ATX has to be filtered? I actually thought the M3-ATX itself would filter this out.
By: RutgerB Rank: Starfleet Lieutenant, Junior Grade Postings: 9 From: n/a	Posted: Do Feb 05, 2009 - 01:54 Message has been edited, Click Here to view/hide original message *Original Message - [02/05/2009]* Will double check my ground wire. http://www.crutchfield.com/S-y6IoeOgOhOc/learn/learningcenter/car/noise.html Will double check my ground wire. http://www.crutchfield.com/S-y6IoeOgOhOc/learn/learningcenter/car/noise.html This chart might help other users: http://www.crutchfield.com/Learn/learningcenter/car/noise_diagnose.html I think I will need this if I can't fix the problem by fixing the ground wire: http://www.crutchfield.com/p_003S25A/American-International-S-15A-S-25A-25-amp-350-watt.html?tp=2653
By: RutgerB Rank: Starfleet Lieutenant, Junior Grade Postings: 9 From: n/a	Posted: Fr Feb 06, 2009 - 12:43 Problem solved, after I disconnected everything and reconnected it everything worked perfect almost without any noise. I think something was touching the ground somewhere...