Date: Tue, 13 Jun 2000 14:31:39 -0700 From: R Joseph Wright <rjoseph@mammalia.org> To: Generic Player <generic@unitedtamers.com> Cc: freebsd-questions@FreeBSD.org Subject: Re: Overclocking AMD K6-'s and FreeBSD Message-ID: <20000613143139.A2309@manatee.mammalia.org> In-Reply-To: <005601bfd569$35f0f750$0100a8c0@x>; from generic@unitedtamers.com on Tue, Jun 13, 2000 at 02:57:23PM -0400 References: <Pine.BSF.4.21.0006130618070.74165-100000@web2.sea.nwserv.com> <005601bfd569$35f0f750$0100a8c0@x>
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On Tue, Jun 13, 2000 at 02:57:23PM -0400, Generic Player wrote: > > ----- Original Message ----- > From: "Jim Freeze" <jim@freeze.org> > To: "Generic Player" <generic@unitedtamers.com> > Cc: <questions@freebsd.org> > Sent: Tuesday, June 13, 2000 9:27 AM > Subject: Re: Overclocking AMD K6-'s and FreeBSD > > > > > > On Mon, 12 Jun 2000, Generic Player wrote: > > > > > Who installed your chip, what is its core voltage, and how warped is the > top > > > surface? There were alot of problems with the higher clocked k-6 II > chips > > > giving off too much heat, particularily the older 2.4v cores, and > making > > > the system unstable. If yours is pretty warped I would suggest lapping > it, > > > and make sure it has thermal grease on. I can't stress that enough. > Actual > > > computer stores with certified technicians constantly leave out the > thermal > > > grease when installing chips, and it can be the major reason for such > high > > > heat. > > > > I have a 2.2v K-6 II. I previously had a 350MHz K6/2, but I could not get > > it working due to random panics and reboots. > > > > I now have installed a 450MHz K6/2 (nice flat surface) with a large > > hintsink with thermal compound and am clocking the chip at 400MHz and it > > runs fine. > > > > I was told (don't know how true this is) that a bad batch of K6's got out > > that were frequency challenged. With my luck, it is true and I got one. > > > > ..And yes, the guy who sold me the chip said he never used thermal > > grease. All he knew was windows. I guess he didn't have too many > > problems with windows, but freebsd seems to work the cpu much harder. > > > > Jim > > > > > He probably did have stability issues and just blamed it on windows. I find > that happens alot. Does your motherboard have a thermal sensor? If it > does, and the temp is normal than it could be a bad chip, but the k-6 line > was almost as bad a cyrix for heat output, I have had to lap everyone I > owned. Doing nothing but lapping one down to copper took the temp from 49 > to 42. Most aren't that bad, but it still makes a difference. Also, is > your BIOS set to enable k-6 write allocate? And is your kernel? I found > that enabling it in the BIOS, but not in the kernel caused problems as well. > And that enabling it under windows could just plain cause problems. > > Generic Player A number of people have mentioned "lapping". Could someone define that please? It sounds like something I need to do. > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > With "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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