Slowdown to save power ?

[craigcurtin]

Guys,

I have a x58a-ud3r with Intel 960 - this is used under Centos as a media Server - it has 8 drives in it.

This box runs 24/7 in my house - i put my killawatt meter on it and it is using about 130w all the time - the reality is that it does very little on an ongoing basis - i would like to wind down the clocks on the CPU to try and save some power - i have set the BIOS to run the CPU at 1.6Ghz - but when looking in Linux it still thinks it has the 4 cores at 3.2ghz and the power useage has not reduced at all

Any idea what i can do with this ?

I am running FH BIOS

Craig

[wazza300]

Re: Slowdown to save power ?

you could turn off two cores and just run two?

[Acebmxer]

Re: Slowdown to save power ?

Have you enabled all C-states along with enable DVID?

[craigcurtin]

Re: Slowdown to save power ?

Very good question - where would i go about reading up on how to do this for Centos ?

Craig

[wazza300]

Re: Slowdown to save power ?

Very good question - where would i go about reading up on how to do this for Centos ?

Craig

c1e and eist will be in the bios along with dvid which unlocks for adjustment when you set cpu voltage to "normal" setting,all those features allow cpu to downclock itself in speed/voltages when demand is low on the cpu

[Acebmxer]

Re: Slowdown to save power ?

Also make sure power mode in CentOS is set to balance or what ever is equivalent to Windows balanced mode.