C4 with Core2duo (merom)

[Thomas Meyer]

Dennis Brendel schrieb:
> Hallo, i just wanted to know i f someone played around with C-states of this 
> cpu?
> In the datasheet for my ICH8 
> (ftp://download.intel.com/design/chipsets/datashts/31305603.pdf) i found 
> somethin on page 378, so i thought i could activate C3->C4 remapping...
> would "setpci -v -s 00:1f.0 a0.b=7 " be the correct thing to do or not? 
> I t seems that it saves me some power, but i am not 100% sure. Maybe someone 
> else can tell me something about it..
>   
The documentation describes the setup of the pci devices. the c state
described in above document will set the corresponding pci device into
this sleep state. this has absolutely nothing to do with the processor c
state, which is set by the mwait command. So please stop messing around
with the setup of your pci devices.

mfg
thomas