Date: Sun, 10 Mar 2002 07:37:18 +0100 From: Cliff Sarginson <csfbsd@raggedclown.net> To: freebsd-questions@FreeBSD.org Subject: Re: Terrible problems with A7V-E mobo/AMD 1200 Mhz duron [Long message] Message-ID: <20020310063718.GB766@raggedclown.net> In-Reply-To: <20020309233255.A12840@jsite.lefort.net> References: <20020309085213.GB870@raggedclown.net> <20020309233255.A12840@jsite.lefort.net>
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On Sat, Mar 09, 2002 at 11:32:55PM +0100, Jean-Yves Lefort wrote: > I had exactly the same problems some months ago with the following hardware: > > Asus A7V-133 > Thunderbird 1400 > > The motherboard was completely flakey. > I spent another day on it, and I think I have finally found out what the problem is. The A7V-E cannot handle a 1200Mhz CPU, downclocking it to 1170 seems to have solved the problem...further tests today should confirm this. I am not sure I completely understand this..if anyone can explain how this could cause SIG 11's at *precisely* the same point in a buildworld I would be glad to hear it. I loaded NetBSD, and recompiled it's userland and it failed also repeatedly at the same point in the process (not the same program as in FreeBSD, but at the same point on repeated runs of the NetBSD equivalent of buildworld). Second thing is, memtest86 is not completely trustworthy when you are using Duron chips (or at least this one). I note the author on his write-up says there are some known issues with the Athlon. I will email him with some details of what I see...maybe another AMD quirk. The memory it is complaining about shows no errors on a board with an Intel PIII, but does on a board with a Duron (this persists even with the downclocking that solves the SIG11's). As I mentioned, I think it is trying to test block moves on non-existant memory. -- Regards Cliff Sarginson -- <csfbsd@raggedclown.net> To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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