Date: Thu, 12 Mar 1998 22:57:55 -0800 From: Studded <Studded@dal.net> To: David Kelly <dkelly@hiwaay.net> Cc: FreeBSD-questions@FreeBSD.ORG Subject: Re: CPU calibration problems Message-ID: <3508D8F3.E1306752@dal.net> References: <199803130304.VAA02572@nospam.hiwaay.net>
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David Kelly wrote: > > Studded writes: > > For some time now I've had problems with the calibration of my CPU > > speed during boot. I have a Dell XPS P90 machine, and I currently have a > > '586 Pentium Overdrive chip in it which normally clocks out to 150.34. > > However, here's some examples of incorrect values: > > > > CPU: Pentium (109.75-MHz 586-class CPU) > > CPU: Pentium (118.77-MHz 586-class CPU) > > I have one P90 that also boots with squirelly CPU speeds reported. > Never seen it as wildly off as yours. OTOH, I haven't booted it as many > times as you've documented. :-) This is my home machine. I use it to test -Stable builds, scripts, etc. I have it configured pretty much like the systems I administer remotely so that I can test changes. It gets booted a lot. :) > Last time booted it was approximately correct. Has been running several > months now. Just what is the real problem if this value is reported > wrong? Well, I don't know that small errors are a big problem. However as I pointed out in my follow up post when the difference gets larger I get more and more calcru errors, such as /kernel: calcru: negative time: -84750 usec. When the difference is very high every single operation gives an error, it's like fireworks. :) Frankly my main concern was that I be able to overclock again, but I wasn't comfortable doing that till I knew for sure that I could get the thing to work properly at the regular speed. Thanks for your interest, Doug -- *** Chief Operations Officer, DALnet IRC network *** *** Proud operator, designer and maintainer of the world's largest *** Internet Relay Chat server. 5,328 clients and still growing. *** Try spider.dal.net on ports 6662-4 (Powered by FreeBSD) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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