Re: Htpc upgrade
Posted: Thu Apr 15, 2021 10:47 pm
I just finished watching Akira 4k version scaled down to 1080p. No overheating to the point that the htpc shuts down, and no more stuttering.
Using Throttle stop, I undervolted the CPU, CPU Cache, and the Intel GPU to -80mv. That appears to be stable for me because I get not bluescreens or sudden freezes. I set up a task so now throttle stop starts up when ever I reboot the htpc and that user logs on. The log on is automatic using systinternals autologon. CPU temp was at 56C while the movie was playing and never went above that. The case was warm to the touch but not burning hot like the previous night when I was trying to watch 200 in 4k. It probably would be a little lower if I stuck with DXVA. I didn't note the temp when I was using DXVA2.
The only settings in madvr that works for my system is to use one of two downscaling settings:
processing done by GPU texture units:
Bilinear
picking that options also sharpens the picture, hides source artifacts, and does some aliasing.
processing done by GPU video logic:
DXVA2
picking this option doesn't do any of the extra processing that bilinear does but the picture still looks pretty good. The upside to using DXVA2 is GPU usage hovers at constant 37%
GPU usage for Bilinear is at 47% to 50%.
Any spiking from the GPU was from me moving the mouse around or bringing up madvr and the task manager. Usage settled back to the percentages I stated once they where closed. It was interesting to see the differences when you picked one and applied the change to madvr. It's a subtle difference, but you can notice it.
I can't use any of the pixel shader processors. They drop frames and stutter. Some less then others, but still a no go. It remains to be seen what will happen when I get a native 4k panel. I'm going to upscale blu-rays and dvds, so I suspect I'll have to pick from the same options for image upscaling.
It really comes down to what you like to see in video quality. They are both good, but I tend to prefer Bilinear as it sharpens the picture a little more. It's a matter of personal taste.
I don't think I'll be needing the Noctua cooler, but I'll hang on to it for a little bit as I have a 30 day return window. I think the playback issue has been resolved. No more stuttering, and no more shutdown due to thermal limits being hit by the system. It played the 2 hour movie without any issues due to high temps.
Using Throttle stop, I undervolted the CPU, CPU Cache, and the Intel GPU to -80mv. That appears to be stable for me because I get not bluescreens or sudden freezes. I set up a task so now throttle stop starts up when ever I reboot the htpc and that user logs on. The log on is automatic using systinternals autologon. CPU temp was at 56C while the movie was playing and never went above that. The case was warm to the touch but not burning hot like the previous night when I was trying to watch 200 in 4k. It probably would be a little lower if I stuck with DXVA. I didn't note the temp when I was using DXVA2.
The only settings in madvr that works for my system is to use one of two downscaling settings:
processing done by GPU texture units:
Bilinear
picking that options also sharpens the picture, hides source artifacts, and does some aliasing.
processing done by GPU video logic:
DXVA2
picking this option doesn't do any of the extra processing that bilinear does but the picture still looks pretty good. The upside to using DXVA2 is GPU usage hovers at constant 37%
GPU usage for Bilinear is at 47% to 50%.
Any spiking from the GPU was from me moving the mouse around or bringing up madvr and the task manager. Usage settled back to the percentages I stated once they where closed. It was interesting to see the differences when you picked one and applied the change to madvr. It's a subtle difference, but you can notice it.
I can't use any of the pixel shader processors. They drop frames and stutter. Some less then others, but still a no go. It remains to be seen what will happen when I get a native 4k panel. I'm going to upscale blu-rays and dvds, so I suspect I'll have to pick from the same options for image upscaling.
It really comes down to what you like to see in video quality. They are both good, but I tend to prefer Bilinear as it sharpens the picture a little more. It's a matter of personal taste.
I don't think I'll be needing the Noctua cooler, but I'll hang on to it for a little bit as I have a 30 day return window. I think the playback issue has been resolved. No more stuttering, and no more shutdown due to thermal limits being hit by the system. It played the 2 hour movie without any issues due to high temps.