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HD-5500 Causes Interference and Static in Graphics and Sound |
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 Posted: Fri Mar 02, 2007 10:24 am |
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| David Crane |
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| Joined: 02 Mar 2007 |
| Posts: 2 |
| Location: New York, NY |
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I think the HD-5500 card is causing EMI interference in the PC. This only happens when the coax cable is plugged into the TV antenna reception port. It happens as soon as contact is made, and ends as soon as I unplug.
This causes static in the sound coming from the PC line-out. It also causes horizontal bars that scroll down the image on the screen. The interference is in the PC, affecting the integrated graphics and sound chips in the motherboard, which is a Asus K8V-MX.
It doesn't matter which PCI slot the HD-5500 card occupies. It doesn't seem to be between the antenna cable (actually, the cable company cable) and the cables to the display and speakers.
Any ideas? |
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Thanks,
David Crane |
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| Posted: Tue Mar 06, 2007 3:03 pm |
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| David Crane |
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| Joined: 02 Mar 2007 |
| Posts: 2 |
| Location: New York, NY |
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Strangely, the sound static is happening even if the PC is turned off. The static begins just as the coax cable makes contact with the HD-5500 connector. And it ends just as I unplug the cable.
Does that make sense to anyone? |
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Thanks,
David Crane |
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| Posted: Tue Mar 06, 2007 3:39 pm |
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| waterhead |
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| Joined: 24 Apr 2005 |
| Posts: 298 |
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It sounds as if it may be a grounding issue, with your antenna or your PC.
If you are using a rooftop antenna, is it properly grounded? Is the outlet that the PC is connected to properly grounded?
It may also be bad coaxial cable. You need to use the quad shield RG-6 cable. |
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