From: Krzysztof Halasa <khc@pm.waw.pl>
To: lsorense@csclub.uwaterloo.ca (Lennart Sorensen)
Cc: "H. Peter Anvin" <hpa@zytor.com>, Marc Perkel <mperkel@yahoo.com>,
Chris Snook <csnook@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: AMD Quad Core clock problem?
Date: Tue, 15 Apr 2008 03:11:20 +0200 [thread overview]
Message-ID: <m3prsrj51j.fsf@maximus.localdomain> (raw)
In-Reply-To: <20080414151222.GF7385@csclub.uwaterloo.ca> (Lennart Sorensen's message of "Mon\, 14 Apr 2008 11\:12\:22 -0400")
lsorense@csclub.uwaterloo.ca (Lennart Sorensen) writes:
> True, but usually they give you an option to turn it off in the BIOS to
> make the system actually work with things like NTP.
>
> Maybe I should have said "Any system with spread spectrum enabled".
I haven't investigated those spread spectrums at all but sometimes
there are options: "center" (the frequency is centered around the
nominal value, I guess) and "below" (or something like that). If done
correctly, "center" shouldn't have visible effect on NTP, should it?
The other important question is "what frequency has spread spectrum
enabled"? CPU (= TSC), HPET, RAM, something else?
--
Krzysztof Halasa
next prev parent reply other threads:[~2008-04-15 1:11 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-11 18:27 Marc Perkel
2008-04-11 18:35 ` H. Willstrand
2008-04-11 18:38 ` Chris Snook
2008-04-11 20:28 ` Marc Perkel
2008-04-11 21:11 ` Chris Snook
2008-04-11 21:36 ` Marc Perkel
2008-04-11 21:38 ` Lennart Sorensen
2008-04-13 19:35 ` H. Peter Anvin
2008-04-14 15:12 ` Lennart Sorensen
2008-04-14 16:23 ` H. Peter Anvin
2008-04-14 16:29 ` Lennart Sorensen
2008-04-15 1:11 ` Krzysztof Halasa [this message]
2008-04-15 1:24 ` H. Peter Anvin
2008-04-15 1:45 ` Krzysztof Halasa
2008-04-15 2:40 ` H. Peter Anvin
2008-04-11 21:46 ` Krzysztof Halasa
2008-04-11 22:09 ` Marc Perkel
2008-04-13 8:19 ` Bart Van Assche
2008-04-12 1:04 ` Marc Perkel
2008-04-14 19:16 ` Chris Snook
2008-04-14 20:46 ` Marc Perkel
2008-04-15 6:11 ` Bart Van Assche
2008-04-16 21:44 ` Marc Perkel
2008-04-17 6:17 ` Bart Van Assche
2008-04-17 18:03 ` Marc Perkel
2008-04-18 11:56 ` Bart Van Assche
2008-06-17 21:09 ` Marc Perkel
2008-04-14 13:40 ` Marc Perkel
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