Date: Tue, 14 Apr 2009 01:47:24 +0100 From: Chris Whitehouse <cwhiteh@onetel.com> To: Graeme Dargie <arab@tangerine-army.co.uk> Cc: User Questions <freebsd-questions@freebsd.org> Subject: Re: (OT) good laptop hardware repair group or forum Message-ID: <49E3DD1C.5010407@onetel.com> In-Reply-To: <01FB8F39BAD0BD49A6D0DA8F78973929567A@Mercury.galaxy.lan.lcl> References: <01FB8F39BAD0BD49A6D0DA8F78973929567A@Mercury.galaxy.lan.lcl>
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Graeme Dargie wrote: >> > > My grandmother had a HP that just died too. My brother took the first stab > at it, describing it as a likely "DC-DC converter" problem, and I was seeing > indication of a bad seat on the CPU. It was working just fine and for the > CPU to become unseated is not likely. I tore that machine apart until I > couldn't figure out how to get the top or bottom plate off that surrounds > the motherboard. I didn't fix it, but we all gave up and she went and > bought another system. > > > The DC-DC converter is what takes the 18V (or whatever) the mains/battery > supplies, and breaks it out into the 3.3V, 5V, 12V, etc needed to power all > the various components. Someone pointed me to this service manual http://tinyurl.com/de6luh. You might find one for yours on the HP site. I suspect something similar has happened to mine, I'm going to take it to a shop for advice, some of them will do component level fixes which is cheaper than a new motherboard. Chris
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