Date: Mon, 02 Feb 2009 13:39:52 +0100 From: Matthias Andree <matthias.andree@gmx.de> To: Andriy Gapon <avg@icyb.net.ua> Cc: freebsd-stable@freebsd.org, Andrew Snow <andrew@modulus.org> Subject: Re: problem with "cold" hardware? [Was: panic in callout_reset: bad link in callwheel] Message-ID: <4986E998.4040504@gmx.de> In-Reply-To: <4986DAAA.3090208@icyb.net.ua> References: <497AF4C7.3080309@icyb.net.ua> <49804F0C.3000400@icyb.net.ua> <4980B072.3050205@modulus.org> <4986DAAA.3090208@icyb.net.ua>
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Andriy Gapon schrieb: > on 28/01/2009 21:22 Andrew Snow said the following: > >> Andriy Gapon wrote: >> >>> Previously I heard about problems with hardware running hot, but not >>> with it being "cold". I put the word in quotes, because the system is in >>> a room with normal room temperature. >>> >>> Any guesses what hardware part might be acting up like this? >>> >> Power supply. Give all the capacitors a visual check. Or you may be >> drawing too much power from your rated supply. >> > > Right on the target. I opened the PSU after replacing it, visually it > looks OK (too me), nevertheless I have verified that the fault was in it. > > Thank you and everybody who helped! > Electronic devices, including computers, that become unable to /cold/ boot (and need a reset some seconds or minutes after power-up) usually suffer from dry or leaked capacitors, either in the PSU or - I've seen that more often - the voltage regulator on the main board. Dry capacitors often look innocuous, unlike leaked ones that show brownish stains (electrolytes) on the cap or underneath.home | help
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