Posted 21 June 2011 - 02:45 AM
Hello, and thank you very much ahead of time for your help.
I am running a Dell XPS 400 machine, 5 years old, on Windows XP with SP3. I originally had an nVidia GeForce 7900 GS, but it went kaput a couple weeks ago (monitor would show crazy lines during bootup and then shut off) so I went to the store to get a new one. I went with an EVGA nVidia GeForce GT430 (1024MB DDR3) mainly because the required wattage, 300W, was within the capacity of my Dell's 375W power supply.
I installed the card in the same PCI Express slot as my previous card, which, by the way, had a direct line of power to the power supply via a 6-pin molex connector, whereas the new card does not (so I let the connector dangle inside the computer case). I booted up the computer and installed the drivers from the EVGA disc. The monitor seemed to work fine.
The problem occurred when I went to watch a video. Then I noticed that the audio of the video is mixed with crackling sounds coming from the speakers. The crackling gets worse when the image is larger, i.e., when I open to full-screen view. The issue has occurred when I'm watching Youtube, Netflix, Hulu. I can really get the crackling going when there's a video playing on a webpage and I scroll the webpage up and down real fast.
My sound card is a Creative Soundblaster x-Fi Platinum, model SB0460, also original with the computer. It is three slots away from the video card with no other cards between, so a total of about four centimeters of air apart.
Not sure it's relevant, but figured I'd mention: I first noticed the problem when I went to watch something in Netflix on a new browser (I've recently started using Chrome) and was prompted to install Silverlight into the browser. Then I opened Netflix and that's when I first noticed the problem. This was a couple days after installing the card, but I'm pretty sure it was the first time I watched video with the new card, so it stands to reason that it would have been the moment I noticed the problem. I only mention it in the off chance that Silverlight has anything to do with it.
Would be grateful for any insight into this issue. Steps I've taken so far, with no change:
1) Manually removed and re-installed both the video card and the Soundblaster card, in the same slots.
2) Downloaded and installed a new package of drivers for the Soundblaster X-Fi from the Creative website.
Thanks very much for your help.