[mythtv-users] asus M3A78-EM

[Travis Tabbal]

On Mon, Jan 26, 2009 at 11:14 AM, James Armstrong
<james at thearmstrongs.org>wrote:

> Travis, I am using that exact same board (M3N78-VM). The only problem I had
> initially was the HDMI audio but got that working. I had a question for you,
> did you update your bios to get the 512M assigned to the video? I found the
> max I could do was 256M. Also, I have a hissing / high pitch popping noise
> coming from around the cpu / capacitor area when I playback video or do
> anything really intensive. Have you noticed that? It is where the square
> black inductors and capacitors are. I don't know if it normal or something
> defective. Like I said, does not happen idle, only high cpu usage.



I did the BIOS update and assigned 512M to the video. I think I updated for
CPU support, but decided to use an X2 3800 I had sitting around instead of
the nicer CPU when VDPAU came out. I didn't even realize that was a new
setting. I didn't mess with it until I tried VDPAU, and I had read that 512M
sometimes helped playback issues so I went in and set it there. I have more
RAM then I need anyway, so I didn't even think twice about it. My other
frontend is a 6150 based chipset and uses software decode. I think it's only
got 32M or 64M for video.

I haven't noticed any noise from the motherboard itself, even when doing
playback either in software or with VDPAU. I would contact ASUS about that
noise, it's possible that it's a known problem with some revs of the board,
or it might be normal and I just never noticed it. I would guess that area
is a switching power supply for the CPU, so it might be normal to hear some
noise from it when the CPU is drawing a lot of current. That board is in a
system with no hard drive, booting from USB flash, so it's very quiet. I
would probably have noticed that sort of noise durring testing with the case
open.
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