[mythtvnz] FrontEnds Controlling Audio Mains Power

[Steve Hodge]

On Wed, Oct 6, 2010 at 11:51 PM, Tortise <tortise at paradise.net.nz> wrote:

> A 3.1G C2D FE idles at 0.28A and plays 1080i at 0.32A. (A mere 74W, which
> surprises me, as I thought it would be much more!


That's impressively low.


> That is
> 50% power saving over the 3G single cores!!!)   Suspend and off power is
> 0.05, as for Steve, so it maybe the motherboard / CPU class
> that determines the idle load?
>

The CPU is actually off when powered off, right? It'd have to be motherboard
and/or power supply, I think.


> All machines I reported on have CF HDD and 9400GT's in the single core
> boards and a 8500GT in the Dual.
>
> >On my machine copying a 4GB file from an SSD to a mirrored pair of SATA
> drives added approximately 20W to the consumption. Pretty
> >trivial in comparison to the CPU or GPU.
>
> Perhaps, but it is also double that of an idling vdpau card vs it playing
> 1080i, which surprises me.  Were the drives off before the
> copy?.
>

Idle but not spun down. The 20W difference is more than Seagate's manual
indicates. There could be CPU load in there due to the software RAID1.

Cheers,
Steve
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