On Fri, 11 Nov 2005 10:35:04 GMT,
(E-Mail Removed) (Paul) wrote:
>In article <(E-Mail Removed)>, Phil DeBecker
><(E-Mail Removed)> wrote:
>
>> I have an A8N-SLI Premium, rev 1.2, BIOS 1006, and I observed
>> something strange with the speeds displayed in ntune.
>>
>> If in the BIOS I leave all of the JumperFree settings on AUTO, or if I
>> set them to Manual with CPU clock speed 200 mhz, then ntune reports
>> the PCI Bus speed is 19.000 mhz. This happens no matter whether I set
>> the PCI Clock Synchronization to Auto, CPU, or 33.33 mhz in BIOS.
>>
>> But, if in the BIOS I set the JumperFree settings to Manual and set
>> the CPU clock speed to 201 mhz, and I set the PCI Clock
>> Synchronization to 33.33 mhz, then ntune reports that the PCI bus is
>> running at 33.33 mhz as expected.
>>
>> In other words, you have to set the JumperFree to Manual and the CPU
>> clock to 201mhz or more in order for the PCI clock to run at 33.33
>> mhz.
>>
>> I never noticed anything wrong with the behavior of PCI devices --
>> DVD's burn and read fine, onboard sound sounds OK, etc -- but this is
>> curious. Are the ntune readings correct, or is this some sort of
>> display bug in ntune? If it is true, then by default the PCI bus is
>> underclocked, which is strange.
>>
>> Phil D.
>
>http://www.cpuid.com/clockgen.php
>
>(Scroll down, to find the version for your board - possibly this one...)
>http://www.cpuid.com/cg.php?cgid=NVNF4
>
>See if clockgen sees the same info as Ntune.
>
> Paul
Thank you for the suggestion!
I just tried it, and apparently ntune just misreports the frequencies.
With JumperFree on [AUTO], clockgen reported the PCI clock was at
33.58 mhz while ntune reported it at 19.00 mhz. With JumperFree on
[MANUAL] and the CPU clock speed at 201mhz, both reported it at 33.34
mhz.
I'm still going to keep it on [MANUAL] but at least now I know that
even on [AUTO] the clock speed isn't completely insane.
Thanks again
Phil
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