[PLUG] Audio noise

[Ken Stephens]

Dick Steffens wrote:
> Watched some recordings this evening with the new power supply in my
> MythTV system. There is some odd noise that is most prevalent while
> watching recordings. While still present, it's less noticeable with live
> TV. I tuned in a golf tournament so there would be segments of quiet
> program, and I could hear the light buzzing. With the front end closed I
> listened to some music with Movie Player. I didn't hear the noise. It
> doesn't make sense to me that a program could cause the problem, but
> I've asked the MythTV list if there anything in MythTV that could be
> involved in creating this noise.
>
> My assumption is that when I put in the new power supply one of the
> cables is now somewhere it wasn't before. I'll open it up again tomorrow
> afternoon and see if I can reroute things.
>
> Other hints of things to look at are appreciated.
>
>
Dick,

Check your CPU fan.  The program (active pixel changing) could be 
causing a higher cpu load that would require your cpu fan to speed up to 
cool.  Some systems don't start the fan until the processor heats to a 
certain temperature.

Ken