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Article #1281Re: PC Switches off soon after Power On??
From: Mark and Jennifer Roush
Date: Tue, 05 Aug 1997 00:00
Date: Tue, 05 Aug 1997 00:00
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2345 bytes
sam@stdavids.picker.com (Sam Goldwasser) wrote: >In article <870507200snz@longley.demon.co.uk> David@longley.demon.co.uk (David Longley) writes: > >> My PC Has recently begun to just switch off soon after having >> been switched on. Leaving it 2 mins and then powering on seems to >> correct this, but it's a little disconcerting. Any ideas? > >Do you mean all power goes off? It is the normal main power switch? > >If so, this sounds like a power supply problem. Either its overload >sensing is defective or you have a marginal load condition (like 10 disk >drives :-) ), bad connections inside, or other power supply fault. >Replacing the PS may be best or see the SMPS and PC power supply repair >FAQs. Also, (Sam you might put this in the FAQ) you can often buy an old 286 from the 80s for $10.00 to $30.00 (With monitor and all acc). Usually the cases are really tough and the power supplies were made for the old MFM/RLL behemoths, therefore much higher capacity, protection and power-on surge limiting than modern supplies. My next 686 NT system is going to be run from a 12 year old 230 watt power monster (I had to replace the cooling fan in it years ago, only service I ever did to it). This baby has powered three systems through their useful lifespan and sat through more thunderstorms and brownouts and hot summer days with nary a glitch. In fact in a brownout it is the ONLY thing in the house that doesn't need to be reset. By comparison a Packard Bell 386 I bought for scrap has a teeny tiny 60 Watt PS that might be a good bench supply for low current experiments but you couldn't pay me to stick it in a computer again! Mark
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 1036bc,450215b3b3fcde02 X-Google-Attributes: gid1036bc,public X-Google-Thread: 1131b0,450215b3b3fcde02 X-Google-Attributes: gid1131b0,public From: jsbach@kuhub.cc.ukans.edu (Mark and Jennifer Roush) Subject: Re: PC Switches off soon after Power On?? Date: 1997/08/05 Message-ID: <33e68bf8.33004816@raven.cc.ukans.edu> X-Deja-AN: 262570824 References: <870507200snz@longley.demon.co.uk> <SAM.97Aug2065041@colossus.stdavids.picker.com> Organization: University of Kansas Computing Services Reply-To: jsbach@kuhub.cc.ukans.edu Newsgroups: sci.electronics.repair,demon.tech.pc