[mythtv-users] Lowest power HD frontend?
Raymond Wagner
raymond at wagnerrp.com
Tue May 28 19:46:59 UTC 2013
On 5/28/2013 2:01 PM, Jeff Siddall wrote:
> I just went and measured my IONITX fronted and it idles at 23 W and
> peaks at 28 W when playing 1080p video.
Last time I checked, my 55W TDP system was runing 25W idle and 32W
playing 1080p video. 45W was the absolute maximum I managed to coax out
of it. Had I gotten a DC-DC power supply (like a PicoPSU) with an
external brick, I could be running around half that within the case
itself, and stored the brick behind my cabinet in the open air.
Even still, you're never going to end up with an expensive pile of
melted plastic. All modern x86 CPUs (a term to which Atoms do not
qualify) have a "boost" mode, where thermal sensors will determine the
amount of headroom a CPU has, and dynamically exceed its rated speed.
While the lower end Pentiums and Celerons have this disabled, they still
have the reverse where the CPU will drop below its rated speed if it has
exceeded its thermal limts. You can take the heatsink off a modern CPU
and all it will do is downclock itself to maintain that stability margin.
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