Date: Wed, 17 Aug 2016 19:11:10 +0000 From: Manish Jain <bourne.identity@hotmail.com> To: freebsd-questions <freebsd-questions@freebsd.org> Subject: Facing a strange problem Message-ID: <VI1PR02MB09746A446A84576ABBF8F157C2140@VI1PR02MB0974.eurprd02.prod.outlook.com>
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Hi, I am facing a strange situation on my FreeBSD (10.3 amd64) box - some very= =20 subtle hardware problem which I cannot determine what and which is causing = me a lot of grief. I recently upgraded my motherboard, CPU and DDR RAM because the previous=20 hardware was making a lot of high-pitched noise. After installing the new=20 MB + CPU + CPU fan RAM, the high-pitched noise (which resembles a bad=20 bearing turning furiously) has not gone away. The pitch has changed, but th= ere is an incessant noise which becomes pretty irritating after some time sitti= ng=20 next to the PC. The noise is most pronounced as I hover and move among the categories in=20 the gnome3 Applications menu. I have no idea whether this has anything to d= o=20 with Radeon HD 8470D onboard graphics chip, which is currently unsupported= =20 on FreeBSD and has to be driven with the vesa driver. But it is a=20 possibility because, as far as I remember, the noise was not present when=20 I was running Windows XP with the correct official graphics driver. If the= =20 noise is related to graphics, then quite likely the source would be the=20 RAM modules - my system's video RAM comes from the main RAM. Other possibilities include the power supply unit and the cables. I am=20 currently ruling out the MB, CPU and CPU fan because all of them are brand= =20 new. I suppose the hard disk can also be ruled out it is a solid state=20 disk purchased just 2 months back. Except for the mouse, all USB devices=20 too can be ruled too because I disconnected all USB peripherals (bar=20 the mouse, for which I changed the port from backside to front) and the=20 noise keeps coming unabated. Anyone who can help my identify the root cause would do an immense favour.= =20 Short of buying a new computer, I am perfectly willing to spend some money= =20 for new hardware that could put a fullstop to this messy noise. If the=20 noise is deemed to be from RAM, would installing a separate graphics card=20 solve the issue ? Suggestions are most welcome. Thanks for any help. Manish Jain
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