From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: Preventing ACPI from Damaging Your CPU Date: Fri, 13 Oct 2006 05:53:39 +0100 Message-ID: <20061013045339.GA534@srcf.ucam.org> References: <1160663160.13196.273175261@webmail.messagingengine.com> <20061013012430.GA31911@srcf.ucam.org> <1160714475.18692.273233665@webmail.messagingengine.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from cavan.codon.org.uk ([217.147.92.49]:48078 "EHLO vavatch.codon.org.uk") by vger.kernel.org with ESMTP id S1750783AbWJMExs (ORCPT ); Fri, 13 Oct 2006 00:53:48 -0400 Content-Disposition: inline In-Reply-To: <1160714475.18692.273233665@webmail.messagingengine.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Mathew Brown Cc: linux-acpi@vger.kernel.org On Thu, Oct 12, 2006 at 09:41:15PM -0700, Mathew Brown wrote: > Thanks Matthew. Just out of curiosity, how did you find out about this > feature (forcing the fan at 80C)? Also, is this specific to HP or do > other vendors also support this? Finally, is 80C safe for the CPU > (Intel or AMD?)? I read that Opteron chips could be damaged if their > temperature reaches 70C. Thanks for your help. A certain amount of reverse engineering of HP hardware while I was trying to diagnose some fan problems before. The fan control chip that HP use is pretty standard, so I think there are docs around somewhere. -- Matthew Garrett | mjg59@srcf.ucam.org