From owner-freebsd-hackers Fri Sep 28 9:59:46 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from freebie.xs4all.nl (freebie.xs4all.nl [213.84.32.253]) by hub.freebsd.org (Postfix) with ESMTP id B908F37B406 for ; Fri, 28 Sep 2001 09:59:39 -0700 (PDT) Received: (from wkb@localhost) by freebie.xs4all.nl (8.11.6/8.11.6) id f8SGxG901090; Fri, 28 Sep 2001 18:59:16 +0200 (CEST) (envelope-from wkb) Date: Fri, 28 Sep 2001 18:59:16 +0200 From: Wilko Bulte To: =?iso-8859-1?Q?S=F8ren_Schmidt?= Cc: kc5vdj@yahoo.com, kbstew99@hotmail.com, Dan , freebsd-hackers@FreeBSD.ORG Subject: Re: power supplies Message-ID: <20010928185916.A1032@freebie.xs4all.nl> References: <3BB40D0B.7000008@yahoo.com> <200109280638.f8S6cKI40211@freebsd.dk> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.2.5i In-Reply-To: <200109280638.f8S6cKI40211@freebsd.dk>; from sos@freebsd.dk on Fri, Sep 28, 2001 at 08:38:20AM +0200 X-OS: FreeBSD 4.4-STABLE X-PGP: finger wilko@freebsd.org Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Fri, Sep 28, 2001 at 08:38:20AM +0200, Søren Schmidt wrote: > It seems Jim Bryant wrote: > > Kent Stewart wrote: > > > > > There are problems with PSes when you use NICs with wake up > > > capability. The NIC may exceed the capability of one of your low > > > amperage voltages. > > > > How much current can wake-on-LAN take? I wouldn't think it would be enough to overload a power supply unless it overloaded the -12V > > line which is usually only rated in the mils. What is the average 12V rating? 5-8 amps? and even more for 5V? I forget what the > > average -5V line is rated. > > The problem is the +5 standby supply. In a modern ATX evironment lots > of stuff pull power on that rail when the machine is switched off, > and most ATX supplies only can delive .5-.7 amps here which can easily > be overwhelmed. > > BTW you all know that you ATX machine use about 25W even when switched > off right ? This gets into real money if you have a handfull of machines, > and you get absolutly nothing for it :) 25W? 4 or 5 according to my measurements. -- | / o / /_ _ email: wilko@FreeBSD.org |/|/ / / /( (_) Bulte Arnhem, The Netherlands To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message