[mythtv-users] mac mini overheating
Jurgen Kramer
gtmkramer at xs4all.nl
Mon May 4 19:04:09 UTC 2009
On Sun, 2009-05-03 at 17:13 +0200, Jarle Thorsen wrote:
> 2009/5/3 Wouter van Atteveldt <wouter at vanatteveldt.com>
> Dear MythTV users,
>
> I am configuring a fairly new core 2 duo Mac Mini to use as a
> MythTV
> front end. I've installed ubuntu using refit following one of
> the guides
> around, and that seems to work pretty well.
>
> Unfortunately, after using it for around an hour or so it just
> stops
> functoning and refuses to boot, the back and bottom are really
> hot. I've
> installed lm-sensors and typed 'sensors' a couple times and
> the
> temperature was running up even when I was not or hardly using
> the
> machine. I only saw one fan that was running at 1500 rpm
> constant.
>
> I know there are some people around here use a mac mini for
> myth tv. Do
> other people have the same problem? Are there general ways to
> prevent
> this problem, ie underclocking the CPU / using a ram disk
> instead of
> hard disk (since it's front end only) / increasing fan
> speed / ...?
>
I have a 2009 Macmini which I use as a MythTV frontend (Fedora 10
x86_64). When I first boot it, it shows:
applesmc-isa-0300
Adapter: ISA adapter
Master : 1496 RPM (min = 1500 RPM)
temp1: +28.5°C
temp2: +28.0°C
After recompiling mplayer and playing a H264 encoded 1080p movie using
VDPAU it shows:
applesmc-isa-0300
Adapter: ISA adapter
Master : 1495 RPM (min = 1500 RPM)
temp1: +42.8°C
temp2: +42.2°C
I have not seen a higher temperature then 44C but my ambient is only
about 20C.
So far I have not experienced any boot problems.
Jurgen
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