From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([69.77.167.62] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1Jd7AD-0004dW-BB for garchives@archives.gentoo.org; Sat, 22 Mar 2008 17:05:49 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id E7F08E04C2; Sat, 22 Mar 2008 17:05:46 +0000 (UTC) Received: from wa-out-1112.google.com (wa-out-1112.google.com [209.85.146.179]) by pigeon.gentoo.org (Postfix) with ESMTP id AB0B2E04C2 for ; Sat, 22 Mar 2008 17:05:46 +0000 (UTC) Received: by wa-out-1112.google.com with SMTP id k34so2457800wah.10 for ; Sat, 22 Mar 2008 10:05:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=OquJ3hveFLnnQmTIDAWSZvDr0U1cEmpyjiVMbJII+Ug=; b=UTLQhhZR0CII6rrTJKNCjq+pF8lGBevwyjS8Ryy9/YAuKMjqwcPqMPuMduAPjPBbTmBBL85Fx/h2zf8STWRU8kWC4I7c7aw9Q0ibGmPVZ2FdL5AWUB7hvByrTlNnaj2NSU5HV6ulbU/k8hBTpS/HpcJmZ2x7gqnJqg4w1Y9V/bQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=Ennm+shNZDyvRY3G3hg1WB3i6kBE/qfEIDe/xK/CD+PPFsHA6WLUykR+LlH7m1MdkqZQqU4gkotw+YW94wW1Nxxu/C6d2Uob01QbPfRZ9/R/TNvSUOyuaOYe3G7J6j1M2DEziCLax/kfdreC+ttH2krTHmGYTpobr9y/c0BUm7o= Received: by 10.114.121.1 with SMTP id t1mr8327548wac.67.1206205546169; Sat, 22 Mar 2008 10:05:46 -0700 (PDT) Received: by 10.114.39.8 with HTTP; Sat, 22 Mar 2008 10:05:46 -0700 (PDT) Message-ID: <49bf44f10803221005l18751300m145f7f630f404e94@mail.gmail.com> Date: Sat, 22 Mar 2008 10:05:46 -0700 From: Grant To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] {OT} Power supply or motherboard dead? In-Reply-To: <642958cc0803212031p6ddfa573m395260cab4de0a8a@mail.gmail.com> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <49bf44f10803190641pd78fc30kbdf3c3a9f8753b6@mail.gmail.com> <49bf44f10803201529w404a2bffhb9c0f77eac3847be@mail.gmail.com> <642958cc0803212031p6ddfa573m395260cab4de0a8a@mail.gmail.com> X-Archives-Salt: fbfa047d-3774-480b-b4d0-a53a394f6b96 X-Archives-Hash: 28b2e75db6d8718a2d50306796ccc3d3 > > > > A Gentoo desktop of mine won't turn on anymore. I was hoping it was > > > > the power supply but I've installed a new one which doesn't fix the > > > > problem. Is there a sure way to know if the motherboard needs > > > > replacement or if I have two dead power supplies? > > > > > > Hi there, > > > > > > I work on PCs for a living, mostly peoples' home computers, and in > > > the case of a "dead pc" the cause is nearly as often something else > > > as it is a dead PSU. > > > > > > Causes such as a duff CD-ROM drive or a damaged USB connector are > > > surprising but not uncommon, so reset the BIOS (using the method > > > described by Volker) and if that doesn't work unplug as much as > > > possible from the motherboard - you'll surely need the CPU & RAM for > > > it to post, but you may wish to swap out the RAM at some point in > > > your diagnostics - and unplug most everything else. That means > > > drives, PCI cards, USB devices, stuff connected to the USB & serial > > > headers, graphics card if possible. Also don't connect the power > > > supply to any of the drives, or anything else that you're not > > > currently using. > > > > > > I've seen cheap power supplies take out the motherboard when they go. > > > Sorry if you find that to be the case. > > > > I removed everything from the motherboard and even tried another CPU > > that used to run on that same motherboard. No luck. I can't test the > > power supply in my P3 router because the CPU power plug is different. > > > > I should have said before that every couple times I try to turn it on, > > the CPU fan spins about 2% of a full rotation and some of the LEDs > > along the back light up for a second. > > > > Would you guys say it is most likely the motherboard at this point? > > > > - Grant > > > > > > > > -- > > > > gentoo-user@lists.gentoo.org mailing list > > > > > > I'm going to take a stab in the dark and say this is an Emachines PC. Am I > right? Not Emachine actually. I built it about 1.5 years ago with parts from the lowest bidder. - Grant > Emachines, when the PSU goes bad, have a habit of taking out the > motherboard, too. Hooking the old PSU up to a new motherboard fries the new > one. I fried 2 motherboards (not Emachines supplied) back in my early days > doing this (PSU wasn't Emachines, either). So, it can happen with other > PSU/motherboards. If the motherboard has a status light and it isn't even > coming on, then the motherboard is dead. Even bad CPUs I've damaged still > allowed the motherboard, fans, etc. to power up (though nothing came up on > the screen). Good info, thanks Mark. - Grant > - Mark Shields -- gentoo-user@lists.gentoo.org mailing list