From owner-freebsd-questions Mon Nov 8 6:45:38 1999 Delivered-To: freebsd-questions@freebsd.org Received: from gatekeeper.tseinc.com (gatekeeper.tseinc.com [209.83.134.9]) by hub.freebsd.org (Postfix) with ESMTP id 85C7114CA9 for ; Mon, 8 Nov 1999 06:45:29 -0800 (PST) (envelope-from jlwest@tseinc.com) Received: (from nobody@localhost) by gatekeeper.tseinc.com (8.8.8/8.8.8) id IAA06707; Mon, 8 Nov 1999 08:45:27 -0600 (CST) (envelope-from jlwest@tseinc.com) X-Authentication-Warning: gatekeeper.tseinc.com: nobody set sender to using -f Received: from ws2.tse.com(192.168.2.212) by gatekeeper.tseinc.com via smap (V2.1) id xma006705; Mon, 8 Nov 99 08:45:19 -0600 Message-ID: <00c901bf29f8$0eb2f2a0$d402a8c0@tse.com> From: "Jay West" To: "Sascha Blank" , References: <199911051415.PAA34264@fox.uni-trier.de> Subject: Re: AMD K62/450 with 3dNOW! kernel build cc1 catches sig4 Date: Mon, 8 Nov 1999 08:46:35 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2314.1300 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2314.1300 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Someone wrote.... > Have you checked that the core power for the cpu has been set correctly? The > 450MHz K6/2 needs a core power of 2.4V instead of the <=400MHz versions that > only need 2.2V. I have experienced by myself if the core power is too low - > 0.1V are already enough - the cpu will start to cause crashes for unknown > reasons when put under heavy load (for example a "make world"). Reducing the > cpu clock to 400MHz helped in my case. Yes, this has been checked. Matter of fact, I got two more sets of motherboards, memory, and cpu's. All exhibit the problem. CPU: AMD K62/450 Motherboard: Baby AT ASUS P5A-B w/Aladin chipset Memory: 128mb PC100 (various manufacturers) The problem remains. Set everything for 450mhz and a custom kernel build generates cc1 catching signal 4. Set the clock back to 300mhz and everything runs ok. PLEASE - any ideas????? I have no idea where to look.... Jay West Please cc me as I'm not on the list To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message