Popping noises coming from my HTPC - AVS Forum
Forum Jump: 
 
Thread Tools
post #1 of 22 Old 02-19-2013, 04:24 PM - Thread Starter
Senior Member
 
blackrain's Avatar
 
Join Date: Mar 2008
Posts: 320
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 10
I have a home theater with a BENQ W6000 (1080p projector). Its only 1 year old so I don't plan on upgrading anytime soon.

I currently have the following HTPC setup for the home theater:
AMD X3 720 BE (unlocked to X4)
4GB RAM
2x Sapphire AMD Radeon 4850s crossfired (I believe they are each 512 mb memory)
Windows 7
Corsair 650W PSU


One of the most annoying problems that I have is that I cannot leave the HTPC on. If the HTPC is already on when I turn on the projector I get "popping" noises (almost like fireworks). I am guessing that maybe it has something to do with the 4850 cards because that doesn't happen on any other A/V device that I have. And it happens with any A/V receiver. I used to have a Pioneer A/V receiver and I got the exact same popping sounds as soon as I would switch over to the HTPC. I always have to turn on the projector first and then the PC to avoid getting the popping noise.
blackrain is offline  
Sponsored Links
Advertisement
 
post #2 of 22 Old 02-21-2013, 05:32 PM - Thread Starter
Senior Member
 
blackrain's Avatar
 
Join Date: Mar 2008
Posts: 320
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 10
Anyone?
blackrain is offline  
post #3 of 22 Old 02-21-2013, 05:58 PM
AVS Special Member
 
Sammy2's Avatar
 
Join Date: Mar 2011
Location: Right next to Wineville, CA
Posts: 9,673
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 30 Post(s)
Liked: 169
Is it coming out of your speakers or out of your HTPC?

Sammy2 is offline  
post #4 of 22 Old 02-21-2013, 08:44 PM - Thread Starter
Senior Member
 
blackrain's Avatar
 
Join Date: Mar 2008
Posts: 320
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 10
Quote:
Originally Posted by Sammy2 View Post

Is it coming out of your speakers or out of your HTPC?

Speakers. I run the HTPC through an A/V receiver that is hooked up to my in-wall speakers for my home theater.
blackrain is offline  
post #5 of 22 Old 02-21-2013, 08:44 PM - Thread Starter
Senior Member
 
blackrain's Avatar
 
Join Date: Mar 2008
Posts: 320
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 10
FYI. I just updated to an Nvidia 660 GTX. Problem persists.
blackrain is offline  
post #6 of 22 Old 02-21-2013, 11:03 PM
Member
 
Ron32's Avatar
 
Join Date: Sep 2010
Posts: 27
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I have the same problem. I have a pioneer sc55. Whenever a movie play in dts hd it makes a popping sound. When it dd or dd turehd it stops. Also when in pcm. Havent solved it yet.
Ron32 is offline  
post #7 of 22 Old 02-22-2013, 05:07 AM
AVS Special Member
 
AnthonyB's Avatar
 
Join Date: Jun 2003
Location: Tampa, FL
Posts: 3,685
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 13
Have reclock installed?
AnthonyB is offline  
post #8 of 22 Old 02-22-2013, 05:31 AM
AVS Special Member
 
lockdown571's Avatar
 
Join Date: Nov 2005
Posts: 1,623
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 58
What software are you running?
lockdown571 is online now  
post #9 of 22 Old 02-27-2013, 08:26 AM - Thread Starter
Senior Member
 
blackrain's Avatar
 
Join Date: Mar 2008
Posts: 320
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 10
Quote:
Originally Posted by AnthonyB View Post

Have reclock installed?

Don't think so? What is reclock? I am running windows 7 x64 ultimate with very few additional apps. Never heard of reclock.
blackrain is offline  
post #10 of 22 Old 02-27-2013, 08:27 AM - Thread Starter
Senior Member
 
blackrain's Avatar
 
Join Date: Mar 2008
Posts: 320
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 10
Quote:
Originally Posted by lockdown571 View Post

What software are you running?

Do you mean O/S?? Windows 7 x64

Otherwise, I don't have too many apps. Just games and codecs (standard video decoding such as mkv, divx, etc)
blackrain is offline  
post #11 of 22 Old 02-27-2013, 10:02 AM
AVS Special Member
 
Sammy2's Avatar
 
Join Date: Mar 2011
Location: Right next to Wineville, CA
Posts: 9,673
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 30 Post(s)
Liked: 169
What software are you using for playback of your media?

Sammy2 is offline  
post #12 of 22 Old 02-27-2013, 10:14 AM - Thread Starter
Senior Member
 
blackrain's Avatar
 
Join Date: Mar 2008
Posts: 320
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 10
Windows media player.

Note that the problem occurs when the HTPC is simply "on". This is not an issue that is specific to an application running.

If the PC is turned on (or already on) before the projector is turned on, the result is popping sounds from the speakers. If I turn on the PC AFTER the projector is already on, no issue.
blackrain is offline  
post #13 of 22 Old 02-27-2013, 10:16 AM
AVS Special Member
 
Sammy2's Avatar
 
Join Date: Mar 2011
Location: Right next to Wineville, CA
Posts: 9,673
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 30 Post(s)
Liked: 169
You should try a better player but that is a discussion for a different thread.

I think that there is some sort of ground loop problem occurring here.

Sammy2 is offline  
post #14 of 22 Old 02-27-2013, 10:17 AM - Thread Starter
Senior Member
 
blackrain's Avatar
 
Join Date: Mar 2008
Posts: 320
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 10
Quote:
Originally Posted by Ron32 View Post

I have the same problem. I have a pioneer sc55. Whenever a movie play in dts hd it makes a popping sound. When it dd or dd turehd it stops. Also when in pcm. Havent solved it yet.

I don't think we have the same problem. My problem is independent of a movie actually playing. It is related to whether the PC is "on" or "off" when the projector is turned on.
blackrain is offline  
post #15 of 22 Old 02-27-2013, 10:21 AM - Thread Starter
Senior Member
 
blackrain's Avatar
 
Join Date: Mar 2008
Posts: 320
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 10
Quote:
Originally Posted by Sammy2 View Post

You should try a better player but that is a discussion for a different thread.

I think that there is some sort of ground loop problem occurring here.

What do you mean by ground loop? Keep in mind that any other device that is always "on" does not have this problem. For example, my cable set top box is always "on". No problem. I have left my Bluray player and my WD Live devices "on" and there is no problem if I turn on my projector later. But for some reason, the PC results in this popping noise. So how would I correct this?
blackrain is offline  
post #16 of 22 Old 02-27-2013, 10:27 AM
AVS Special Member
 
Sammy2's Avatar
 
Join Date: Mar 2011
Location: Right next to Wineville, CA
Posts: 9,673
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 30 Post(s)
Liked: 169
How is your HTPC connected to the projector and/or AVR?

There may be a problem in this particular cable.

Sammy2 is offline  
post #17 of 22 Old 02-27-2013, 12:25 PM - Thread Starter
Senior Member
 
blackrain's Avatar
 
Join Date: Mar 2008
Posts: 320
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 10
HDMI? I will try a different cable.
blackrain is offline  
post #18 of 22 Old 02-27-2013, 01:01 PM - Thread Starter
Senior Member
 
blackrain's Avatar
 
Join Date: Mar 2008
Posts: 320
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 10
Quote:
Originally Posted by Sammy2 View Post

How is your HTPC connected to the projector and/or AVR?

There may be a problem in this particular cable.

So I tried 2 different HDMI cables. Then I opened a brand new cable. Problem persists.

Interestingly, when I shut off the projector, the popping sound continues. I have to shut off the A/V receiver for the popping sound to stop. Once I turn the A/V receiver back on, popping continues. So the only way to stop the noise is to either (1) shut off the receiver, (2) switch to a different device on the A/V receiver, or (3) make sure that the projector is turned on before the PC is turned on. And once the popping starts, it can't be stopped without (1) shutting down the A/V receiver, (2) switching to a different device, or (3) shutting off the PC.

Note that I now have a brand new EVGA GTX 660 with HDMI connector for my HTPC.
blackrain is offline  
post #19 of 22 Old 02-27-2013, 01:06 PM
AVS Special Member
 
Sammy2's Avatar
 
Join Date: Mar 2011
Location: Right next to Wineville, CA
Posts: 9,673
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 30 Post(s)
Liked: 169
Now from what you are stating I'm thinking it may be a codec problem. What is the file you are playing? If it contains dts and you don't have a dts decoder you can get these sorts of problems.

Sammy2 is offline  
post #20 of 22 Old 02-27-2013, 01:09 PM - Thread Starter
Senior Member
 
blackrain's Avatar
 
Join Date: Mar 2008
Posts: 320
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 10
Not playing a file. Just to be clear again, the status of the HTPC being "on" is the sole source of the problem. Pretend that I turn on the PC first and then turn on the projector 10 minutes later. The noises start almost immediately. I haven't even logged into windows.

Or if I leave the PC on (no apps running) and come back a day later to turn on the projector, the noises start and the only way to resolve is to reboot.
blackrain is offline  
post #21 of 22 Old 03-01-2013, 08:24 AM
AVS Special Member
 
Andrew Hornfeck's Avatar
 
Join Date: Dec 2002
Location: AL
Posts: 2,546
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked: 16

You mentioned a Pioneer AVR, what other AVR have you tried?  Seems there's an issue with the AVR in my opinion.  Have you this same issue on other HDMI inputs on the AVR?  What other HDMI devices are you using and could changing to one of those have the same popping noise?  Also, just to be clear, you've demonstrated this on a single ATI and a single nVidia video card, right?  That's why I'm thinking the common link is the AVR. 

Andrew Hornfeck is offline  
post #22 of 22 Old 03-02-2013, 12:13 PM
Newbie
 
ilaurens's Avatar
 
Join Date: Feb 2013
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
turn everything on until you hear the popping sound

1) Turn of the sound, of the beamer and cinema system, do you still hear it/
2) Turn off the beamer, does it still make the popping sound?

3) It keeps popping or for only a few minutes then stops? might be that the room temperature is to low, of course when the computer turns on it'll make sounds, like a radiator can do.

4) Last think I can think off is that it might be the harddisk, or Fans.
ilaurens is offline  
Reply Home Theater Computers

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off