Date: Tue, 30 Aug 2016 17:55:57 -0700 From: David Christensen <dpchrist@holgerdanske.com> To: freebsd-questions@freebsd.org Subject: Re: Is it necessary to reinstall OS upon motherboard change? Message-ID: <2b6c40ab-0c1d-043d-977c-cc08bcfbea0c@holgerdanske.com> In-Reply-To: <VI1PR02MB0974742A26B2AC98D59831DCC2E00@VI1PR02MB0974.eurprd02.prod.outlook.com> References: <VI1PR02MB0974ABE8A5C1472F61965571F6E00@VI1PR02MB0974.eurprd02.prod.outlook.com> <20160830211757.7de1896d.freebsd@edvax.de> <VI1PR02MB0974742A26B2AC98D59831DCC2E00@VI1PR02MB0974.eurprd02.prod.outlook.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On 08/30/2016 02:21 PM, Manish Jain wrote: > I could not figure out any way to suppress all that noise that comes from > my system. Please describe the noise and/or upload an audio sample. > Upon opening the cabinet to investigate, all that I could make out > was that the noise originates from the motherboard. It's possible that > this motherboard uses lower grade capacitors and electronics, which could be > the root problem. ... To test if a fan is making noise, I place my finger on the center hub to stop the fan. (I then remove my finger after ~1 second and the fan starts again.) For power supplies, I typically shutdown the computer,open up the case, disconnect all the load pigtails, unplug the computer from AC power, place a known good power supply next to the case, connect its pigtails to the load, connect its AC power, and power up. To test for vibrating components, there are two approaches: 1. Touch components with something that absorbs vibration and/or increases mass (e.g. finger, pencil eraser, alligator clip, pliers, etc.). 2. Use a mechanic's stethoscope, or substitute (a solid rod, microphone and headphones), to determine what component is making the noise. David
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?2b6c40ab-0c1d-043d-977c-cc08bcfbea0c>