From owner-freebsd-hackers Wed Jul 3 01:17:00 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id BAA16730 for hackers-outgoing; Wed, 3 Jul 1996 01:17:00 -0700 (PDT) Received: from ns.pa-consulting.com (ns.pa-consulting.com [193.118.224.1]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id BAA16721 for ; Wed, 3 Jul 1996 01:16:55 -0700 (PDT) Received: from SMTPGATE.PA-CONSULTING.COM by ns.pa-consulting.com (8.6.4) id JAA28114; Wed, 3 Jul 1996 09:25:56 +0100 Received: by SMTPGATE.PA-CONSULTING.COM with Microsoft Mail id <31DA9EFA@SMTPGATE.PA-CONSULTING.COM>; Wed, 03 Jul 96 09:25:30 PDT From: Duncan Barclay To: freebsd-hackers Subject: Re: SIG's 11 and 6... Date: Wed, 03 Jul 96 09:10:00 PDT Message-ID: <31DA9EFA@SMTPGATE.PA-CONSULTING.COM> Encoding: 39 TEXT X-Mailer: Microsoft Mail V3.0 Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Although not on FreeBSD, I have seen similar odd crashes on a high end petium box which was shipped without a CPU fan. Putting one on solved the problem, again it was found that running the box with the lid off helped before the fan went on. Duncan ---------- From: owner-freebsd-hackers To: walter Cc: hackers Subject: Re: SIG's 11 and 6... Date: 02 July 1996 20:09 [...] > HEAT! My pentium 120 was having the above problems. Switching out memory > would solve them for a day or two, but the problems would then start to > build up again. FINALLY I replaced the CPU fan and added a big waffle fan > in the front of the case and VOILA... No more SIG's for the last week. > Chances are that in the past the time involved in cracking the case and > swapping memory dropped the temp enough to alleviate the problem. I've got a Pentium 133 here running 2.2-960612-SNAP, and it too was experiencing more or less random Segmentation Faults, Bus Errors, and/or Illegal Instructions. This behavior persisted despite swapping SIMMs several times. I finally resolved this with a strange fix: though the CPU can run at 133MHz, I clocked it down to 120MHz via jumper settings on the motherboard. I haven't had any problems with it since. I wonder if my problem is actually heat-related as well? Reducing the CPU clock may simply cause the chip to run cooler. Anyone else have similar troubles, or other ideas? -- delerium@ais.net