[coreboot] recent mainboard with coreboot support and certain requirements

[Paul Menzel]

Dear Uwe,


thank you for sharing your results.


Am Samstag, den 29.03.2008, 20:08 +0100 schrieb Uwe Hermann:
> On Fri, Mar 28, 2008 at 02:34:38PM +0100, Paul Menzel wrote:
> > Of course I read [1]. It looks like I have to make a decision between
> > onboard graphic and firewire – but 2. has higher priority (or is my
> > assumption regarding power consumption wrong).
> 
> Depends a lot on which graphics card you want to use.
> 
> Here's a quick test I just did on my ASUS A8V-E Deluxe, with setting the
> CPU frequency scaling support in Linux to "powersave" and "performance"
> (all tests done with the proprietary BIOS):

Do you remember which kernel you used? And how did you measure the
Watts?

> No graphics card, performance: 61.6 W
> No graphics card, powersave:   55.2 W
> 
> Old PCI VGA graphics card, performance: 64.8 W

+ 3,2 W

> Old PCI VGA graphics card, powersave:   58.6 W

+ 3,4 W


> Cheapo PCI-E graphics card, performance: 74.3 W

+ 12,7 W

> Cheapo PCI-E graphics card, powersave:   67.8 W

+ 12,6 W


I guess, one can say that the difference in the numbers with different
governors are probably measurement errors.

> Here's the lspci for the cards:

Thanks.


> There are certainly a lot more power-consuming graphics adapters
> out there, this is the cheapest PCI-E one I could get (I couldn't care
> less about 3D performance).

Now the interesting question is, how much more power a mainboard with
onboard graphic is using compared to a board without.


> HTH, Uwe.

Yes this helped. Thanks again.

Paul