From owner-freebsd-stable  Sun Jan 20 10:43:26 2002
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To: Miguel Mendez <flynn@energyhq.homeip.net>
Cc: mikea <mikea@mikea.ath.cx>, freebsd-stable@FreeBSD.ORG
Subject: Re: Crashed again. 
In-reply-to: Your message of "Fri, 18 Jan 2002 21:45:31 +0100."
             <20020118204548.F09C13FCAA@energyhq.homeip.net> 
Date: Sun, 20 Jan 2002 10:43:21 -0800
From: "Kevin Oberman" <oberman@ptavv.es.net>
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> From: Miguel Mendez <flynn@energyhq.homeip.net>
> Date: Fri, 18 Jan 2002 21:45:31 +0100
> Sender: owner-freebsd-stable@FreeBSD.ORG
> 
> 
> I'm going to try tomorrow with a K6-450Mhz and will post the results, but the 
> box has been pretty loaded today (I did a buildworld) after the fan replace. 
> I'll know tomorrow.

Just a few comments on the K6-450. I use one at home and it works well
in an ASUS mobo. But...

It runs VERY hot. I have a good heat sink fan and the ASUS has
temperature sensors so I could monitor heat dissipation. I would see
the temp shoot up during a buildworld before I got a fatal error.

If you have sensors, don't forget that they are usually UNDER the chip
while the proper place to measure the temp is on top. While the chip
is rated to 50C, I would regularly see it die at about 42C measured on
the bottom.

I pulled the heat sink and discovered it was dry. I applied a THIN
layer of heat sink grease to the top of the chip and the bottom of the
heat sink and re-assembled. Victory! NO further problems.

And NEVER over-clock this chip!

R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman@es.net			Phone: +1 510 486-8634

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