From owner-freebsd-questions Sun Jan 12 0:59:54 2003 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 43A2937B401 for ; Sun, 12 Jan 2003 00:59:52 -0800 (PST) Received: from mail6.atl.registeredsite.com (mail6.atl.registeredsite.com [64.224.219.80]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3C62843F13 for ; Sun, 12 Jan 2003 00:59:51 -0800 (PST) (envelope-from admin@asarian-host.net) Received: from asarian-host.net (asarian-host.net [216.122.74.112]) by mail6.atl.registeredsite.com (8.12.2/8.12.6) with ESMTP id h0C8xnEP020633 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NOT) for ; Sun, 12 Jan 2003 03:59:50 -0500 Comments: To protect the identity of the sender, certain header fields are either not shown, or masked. Anonymous email addresses for asarians can be requested by filling in the appropriate form at: https://asarian-host.net/cgi-bin/signup.cgi Received: (from root@localhost) by asarian-host.net (8.11.6/8.11.0) id h0C8xnL27870 for questions@freebsd.org; Sun, 12 Jan 2003 09:59:49 +0100 (CET) (envelope-from admin@asarian-host.net) Posted-Date: Sun, 12 Jan 2003 09:59:49 +0100 (CET) From: Mark Message-Id: <200301120859.H0C8XJJ27836@asarian-host.net> Date: Sun, 12 Jan 2003 09:59:34 +0100 X-Authenticated-Sender: admin@asarian-host.net Subject: Re: FreeBSD and AMD power management X-Trace: XKNqbEpTVLtwxbcgbYSXVAOFWx86BchPAoapLFHZ3m8jZLGSFrcK8k5xyDB26eYI X-Complaints-To: abuse@asarian-host.net X-Abuse-Info: Please be sure to forward a copy of ALL headers X-Abuse-Info: Otherwise we are unable to process your complaint Organization: Asarian-host To: "Jud" , "Matthew Seaman" , References: <20030108232002.G61746-100000@whitetower.gambrl01.md.comcast.net> <20030109085442.GA10394@happy-idiot-talk.infracaninophi> <200301091915.H09JFUJ16660@asarian-host.net> <20030109204920.GA15135@happy-idiot-talk.infracaninophi> <20030109213415.00C454087B@server2.fastmail.fm> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Auth: Asarian-host PGP signature iQEVAwUAPiEuhTFqW1BleBN9AQHKWwgAj4VJzvvHCx0rZOdO/HGaZro0NlBobeE7 O1mZN6jmU49A4JUFRVeumZpbGQpaXxqNL45M9d87RzORJYvpQPSmDG7y0uFf384e YpCBmnVSDhujxNzBAJVXIEJ7dNBiN41mk+7m2r+PvO9KlBs05FQMjHBLFibX56Vb L+mvgqGfVsXm6odvbvB6ZOXY2S+gRMITLuL7PgxpEXt5LoShTqt+Swj7iRCFwdB/ nDib45h2dAa7MsKqBfrm9WQ7ZiSrxvWfzbkQFYgCgBcuEtki1tGDId7m/CbHcIaE FgtY2mO38zOlN0rvdCosMgU+3MbPSM3OC3M8vSrJa4pXykqV6ddODw== =ier3 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG ----- Original Message ----- From: "Jud" To: "Matthew Seaman" ; Sent: Thursday, January 09, 2003 10:34 PM Subject: Re: FreeBSD and AMD power management > YMMV, but I have fvcool running while building world, compiling > ports, etc., and have never had the slightest difficulty. I did some research as to why fvcool would make your computer unstable. And, it turns out, it is not so much the CPU itself which may cause instability, but the power supply. :( The idea is, that when your power supply heavily fluctuates between, say, 70W (normal operations), and 5W (power-safe mode), the power supply may experience trouble keeping the voltages stable. Plus, rapidly fluctuating the power draw, to the effect that fvcool would cause, or rather: that power-safe mode would cause, it is argued that the lifespan of your power supply may shorten drastically. And then there is the issue of the UPS. Dunno about others, but my UPS (APC 350), according to its specifications, does not allow equipment that draws power on a gliding scale (like lamps with dimmer switches). All-in-all, and I say this with regret, I have therefore decided not to use fvcool, after all. :( - Mark To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message