Date: Mon, 25 Feb 2008 20:38:09 -0500 From: "Tsu-Fan Cheng" <tfcheng@gmail.com> To: "Chris Whitehouse" <cwhiteh@onetel.com> Cc: FreeBSD Questions <questions@freebsd.org> Subject: Re: hardware problem Message-ID: <f84c38580802251738n1e513549ga18a1e650948e891@mail.gmail.com> In-Reply-To: <47C362EE.1020706@onetel.com> References: <f84c38580802250606n6edd4ee5p4da0239ec4155548@mail.gmail.com> <6.0.0.22.2.20080225090234.025e4bb0@mail.computinginnovations.com> <47C362EE.1020706@onetel.com>
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hi guys, just take every part out and dust with a brush, reseat the m-board and hook on the power supply, switch on the power and both fans spin for quite a while, seeing this, I switch it off and start to connect all the cables. After all is done, i turn on the power again, and this time it stop again after a short spin. and I looked everywhere on the board and found some silverish dust on the board, i dust it away, but this time, the fans and the LED light on the board never spin or lit up when i switch it on, i wonder if something i did kill the power this time, any idea?? thank you for your help. TFC On Mon, Feb 25, 2008 at 7:53 PM, Chris Whitehouse <cwhiteh@onetel.com> wrote: > > Derek Ragona wrote: > > At 08:06 AM 2/25/2008, Tsu-Fan Cheng wrote: > >> Hi guys, > >> this is really not about freebsd per sa. But this is the only > >> computer-related forum I use. so please forgive me. > >> my desktop was relocated due to my recent moving to a new > >> apartment. After settling down at the new place, I plug in the cables > >> and the computer won't start up. I open the case and found out that > >> when i switched on the power supply from the back, the power fan and > >> cpu fan will spin for a split second then stop. I tried to debug by > >> unplugging the cables, when doing so, sometimes the fans will spin for > >> 10 seconds, maybe, but most of the time, it just stopped right after > >> the power switched on. I also try to hold down the start button on the > >> front for a while, but no good. I was told the mother board maybe > >> short-circuit. can anyone give a second opinion?? thanks!! > >> > >> TFC > > > > It sounds like you have something shorting out the motherboard. I would > > remove everything you can, all add-on cards etc. Just leave a video > > card, unless video is on the motherboard. I would disconnect all the > > drives too. The idea is to remove everything, so you can check just the > > motherboard alone. If the motherboard still won't power on, remove and > > reseat the RAM. If it still won't power up, remove and re-seat the CPU. > > > > I would guess something inside the case was moved around enough in your > > move to cause the short. > > > > -Derek > > > Agree. The symptoms, fans starting and almost immediately stopping, say > the power supply is starting, detecting a short and shutting down. If > the video card is AGP double check it is properly seated, I've had that > same result several times particularly with AGP cards lifting very > slightly at the inboard end. > > Chris > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" >
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