[mythtv-users] Powersaving tip on Athlon PCs.

[Rob Comstock]

How do you measure CPU temp?


----- Original Message ----- 
From: "Keat Lim" <mythtv at keatlim.com>
To: <mythtv-users at snowman.net>
Sent: Thursday, July 03, 2003 11:25 AM
Subject: [mythtv-users] Powersaving tip on Athlon PCs.


> 
> I am using the Kill-A-Watt device (basically a wattmeter device) that I
> just got today and was amazed how much power my unit is costing me a
> month!
> 
> My Athlon 900 (non XP version but it may apply to XP versions too)  
> currently runs at around 80watts at idle and I was assuming that the HLT
> on idle in the Linux kernel was working as it would bump up to 90watts
> while in use (LiveTV/recording). I wasn't satisfied and kept hunting
> around till I found this howto
> (http://cip.uni-trier.de/nofftz/linux/Athlon-Powersaving-HOWTO.html)  and
> after using the setpci command I watch it drop from 80watts to 50watts
> when not in use (in MythTV menu and not recording). That is a lot of power
> saving which I calculated would mean something in the range of
> the usual $7-8/month to a much lower $4-5/month...
> 
> Also sensors reports temperature drops from 40C to 30C which also gives a
> confirmation that the CPU is indeed not using as much power as before...
> 
> Of course YMMV but thought I'll just pass this along....
> 
>