[mythtv-users] Why is OpenGL video renderer overheating my GPU?

[Mike Perkins]

On 08/05/12 22:45, John Morris wrote:
> On Tue, 2012-05-08 at 11:43 -0700, Gabe Rubin wrote:
>>
>> I have an Nvidia 220 card with a fan and heatsink that takes up one
>> slot.  I don't have that many slots in my motherboard and can't leave
>> any open next to the video card.  When the system is idle (i.e., just
>> displaying the menu screen but not playing video), the GPU temp is 62
>> C (as reported by nvidia-smi).  This seems high to me.  It also
>> reports the fan speed at 0%, but I can tell the fan is on by visual
>> inspection.
>
> Ouch.  I have a Nvidia 210 in mine, only fanless and a double wide
> because I figured that fanless might need a big ol heatsink to be
> reliable in a quiet HTPC job  I had a PVR-350 (full height PCI) in also,
> with a gap of a slot.  It only went to 70C decoding HD video and I
> thought that was a mite warm.
>
> So I went ahead and removed the PVR-350 and added a fan set to slow
> speed blowing in the direction of the video and now get 40C idle and 55C
> playing HD Video.
>
> This stuff just runs hot, thermal design has to be factored in when you
> are putting together a machine.  About all you can do is try to get more
> air to it or rethink the design.  If you can't add another fan perhaps
> you can experiment with an air duct?
>
Point. Don't overlook the PVR-350, which can sink a sufficiently large amount of 
power on its own. Unless you actually need the analog ability, consider 
replacing it with an HDHR or an HD-PVR (external units) or a USB tuner.

-- 

Mike Perkins