From owner-freebsd-hardware Sun Jul 13 19:02:32 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id TAA21242 for hardware-outgoing; Sun, 13 Jul 1997 19:02:32 -0700 (PDT) Received: from www2.shoppersnet.com (shoppersnet.com [204.156.152.112]) by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id TAA21237 for ; Sun, 13 Jul 1997 19:02:24 -0700 (PDT) Received: (from hlew@localhost) by www2.shoppersnet.com (8.8.5/8.8.5) id TAA14348; Sun, 13 Jul 1997 19:03:54 -0700 (PDT) Date: Sun, 13 Jul 1997 19:03:54 -0700 (PDT) From: Howard Lew To: "Jordan K. Hubbard" cc: jwm@CSUA.Berkeley.EDU, FreeBSD-hardware@FreeBSD.ORG, root@meeko.eecs.Berkeley.EDU Subject: Re: AMD K6 In-Reply-To: <16138.868840695@time.cdrom.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hardware@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Sun, 13 Jul 1997, Jordan K. Hubbard wrote: > > I ma currently test driving an AMD K6/200 in a > > FIC PA-2005 motherboard and I am getting a lot of crashes. > > (actually it looks like a reset, no cores, no console messages > > just a spontaneous reboot). I am wondering if anyone has seen > > the K6 do similar things. The vendor says "The K6 does support > > UNIX", but I am inclined to believe that he doesn't have a clue. > > I am thinking I will return the K6 and get a Cyrix M2, any thoughts? > > We've been totally unable to get the K6 to work reliably, nor have any > of the folks we've been talking to had much luck - the symptoms are > basically the same in each case, signal 11s all over the place and > make world failures. What's weirder is that it will often work just > fine for days or weeks, the initial make world tests going fine, and > then it will just stop, no make world making it through from that > point on. I'd never seen a CPU fail due to heat death, but it sure > seems like the only explanation here. What's more worrisome is that > the other 4 testers had exactly the same thing happen. > > Anyway, FreeBSD, Inc. now owns an expensive piece of chip jewelry from > AMD since our 30 day return period also elapsed during testing. :( > Hmmm... that's odd, I have not seen that problem here. Knock on wood. But then we use heatsink grease as recommended by AMD. Motherboards tested to work fine: FreeTech F63T, F76, F79* PC Chips M537A, M537B* * = with switching VRM Are you guys using it on a Dual Voltage motherboard? at 2.9V Core and 3.3V I/O? With the current that it draws, a switching voltage regulator is highly recommended. Motherboards that use a standard linear voltage regulator motherboard can overheat and blow the voltage regulator and damage the motherboard and/or cpu.