UK DVB-T2 HDTV Playback choppy
#16
Just checked VRAM - it's set at 512MB. I think that should be sufficient for OE?

I also noticed, while poking around in the BIOS, that I had a fan setting of "Ultra silent" or something similar - basically slowest possible. I've now set that back to "normal". I can hear the fan going faster and the GPU now runs at closer to 70 degrees. After a quick test, things seem to be OK - no stuttering!

I can't find a limit published for the ION chip but it seems that above 90 degrees causes issues.

I've been wrestling with this problem for a few months now so I'm not going to say I've solved it yet but I'm moderately optimistic...

I'll report back and thanks for your help.
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#17
Interesting. Maybe the chip has some kind of self protection and powers down before getting too hot.
I was used to have a fanless GT220 in my former box. In order to make it fit into the case I had to cut a piece from the cooler. The chip regularly was above 90 without problems. But of course was no ION.
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#18
It's well known that IONs get hot - otherwise, how would you flatten your shirts?

Good luck, then, James - I hope this is your issue. If it is, I'd expect a full power-down-and-go-cold would mean that the problem would be less apparent than once the system is hot.

If it comes back, my next suggestion would be to try OE 32-bit from a USB stick, try copying your media locally or using NFS instead of SM/CIFS,

Or spend two hundred quid on a Revo or Pivos...
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#19
I spent a couple of hours yesterday evening allowing HDTV to play on the system without a glitch! GPU temperature reached about 87 degrees after this time - still hot but evidently not reaching throttling point. With just the menu or SD content it seems to settle closer to 75.

Interestingly I had a few false dawns in the process of chasing this down when I started up HDTV and it played fine for a few minutes. Just as I was about to start celebrating the jerky playback would start again. In hindsight it all makes sense!

@yaffle - I was just about to give up and buy a Revo but it looks like I won't need to now Big Grin

Cheers,

James.
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