[mythtv-users] Out of nowhere, cpu is now cooler

Calvin Harrigan charrig_mythtv at bellsouth.net
Fri Jun 13 20:35:16 UTC 2008

Steve Peters - Priority Electronics wrote:
> Hello,
> I do a lot of nuvexporting of my recordings, always pushing the cpu to 
> 100% for hours at a time (core 2 duo, 1.8ghz, 800mhz bus).
> Usually my cpu gets up to around 45-50 degrees Celsius. My cpu fan, the 
> stock intel one, usually goes around 2000 to 2200 rpm or so when at this 
> temp. This has been a constant throughout the last year or so. I check 
> temps and fan speeds all the time, and they're always around this area.
> I recently switched to mythbuntu 8.04, and all of a sudden, my temps 
> never go above 39 degrees celcius when at 100% cpu usage (100% on each 
> core). The cpu fan, which is auto controlled by the motherboard/bios, 
> never goes above 1600rpm. It's now hotter in the house than it was 6 
> months ago. I just don't get it.
> I mean, I'm not complaining…I'm even thinking of overclocking it now, 
> but just don't want to mess anything up.
> But how and why could this be? I have always used mencoder to nuvexport 
> my recordings, and it goes the same fps, if not more now than it ever 
> did before. I get around 30-35fps transcoding with some good quality 
> settings. Nothing in the system has changed in the past year except for 
> the fact that I've added another drive inside it, which I'd think would 
> raise temperatures if anything. Also, I have a thermometer in the 
> cabinet that encloses the computer…yes, it's totally enclosed except for 
> some vents in the back, and that thermometer never gets above 85 degrees 
> F except when it's a hot day.
> Any ideas?
> -Thanks
> -Steve
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Newer kernel, probably handles power management better.

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