[mythtv-users] Architecture Idea - Raspberry Pi, VM, XBMC

[Raymond Wagner]

On 1/5/2013 12:03, Roger Heflin wrote:
> On Sat, Jan 5, 2013 at 10:22 AM, Raymond Wagner <raymond at wagnerrp.com> wrote:
>> On 1/5/2013 09:37, Roger Heflin wrote:
>>>
>>> The baseline Atom board with a good power supply runs
>>> about 30-40W at idle
>>
>>
>> Thats awful! My 3.1GHz Ivy Bridge with a middling power supply only runs
>> about 25W idle.
>
>
> It is a 3 year old machine measured at the outlet plug.
>
> What kind of meter are you using to measure that?
>
> My ivy bridge laptop runs 17W at idle with the screen off, and that is with
> a low power laptop cpu vs a high power desktop cpu and for the most part most
> of the desktop motherboards don't do that well on power savings at the
> mb level, where the laptop chips are setup for power savings.

This is a 55W rated G2120 (Pentium, not i3) on a Foxconn H67 board, and 
whatever not-80Plus rated 150W PSU Antec puts in their ISK300. Idle is 
25W measured at the wall with a Kill-A-Watt, and oddly enough it runs 
that same value whether running full speed at 3.1GHz or downclocked to 
1.6GHz. Perhaps the CPU was doing that on its own automatically when I 
didn't have the kernel modules loaded to allow Linux control. ATSC 
playback with software decoding and OpenGL is 32W, and full load on both 
cores is 45W.