I know that Cool n Quiet and the Intel Speed Stepper are not recommended by
Flex and others for this near-real time audio process. I do use Cool n Quiet
with a 4 core AMD Phenom II 955. This adds about 50 us to my DPC latency. At
the same time, it keeps the CPU temp down to about 51C while all radio-related
programs are running, and 38-40C when the radio isn't running. This in turn
keeps my fans running in their quiet rpm ranges. If I turn off Cool n Quiet, I
pick up another 5-8C or more, and the fans rev higher to save the CPU. Temp is
not as important with Intel CPU's- they can withstand 70C or more. AMD
processors, however, shut down at 62C and scale back at 60C.. > Date: Sat,
10 Sep 2011 16:53:58 -0700
> From: [email protected]
> To: [email protected]
> Subject: [Flexradio] AMD "cool and quiet"
>
> I am running a 6 core AMD Phenom that is a 3.2 ghz CPU. Tim mentioned
> that AMD's "cool and quiet" is not so good for PowerSDR. It's
> installed and I do see my CPU cycle down to 1600 MHz at times but it's
> usually and 2400Mhz or 3200MHz. So far I haven't noticed any ill
> effects from this. It might be the "more CPUs is better effect" my
> CPU load is never much more than 7% with PowerSDR, WSPR 2.0 and
> Xchat2 running. I wonder what experience others on the Flex reflector
> have had. As it's working as is I am leaving it that way until it
> causes trouble.
>
> I already have thermal issues in the shack at times. Running the CPU
> full bore all the time might make me sweat more LOL.
>
> Steven
>
> --
> ____________
> Steven L Hess ARS KC6KGE DM05gd22
> Skype user flamebait Cell 661 487 0357 (Facetime)
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> openSUSE Linux 11.3 and 11.4
>
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