換新nForce 5.10 驅動程式
還是一樣有干擾

在你提供的連結中
這位苦主最後是靠降低頻率
至166Mhz才解決
但我試過此方法還是一樣干擾

OK I fixed the problem!!
I fixed it by downloading the new Nvidia audio drivers (4.31). It wasn't the drivers that fixed it, however it comes with a System Utility, with overclocking utilities. I had my Front side bus/memory bus speed set to 322Mhz, I lowered it back to 166Mhz, interference completly gone!
I guess this can be done in BIOS too, I found the memory speed setting in my Asus A7N8x-x BIOS to be misleading.
Anyway it fixed my problem. Hope its a clue to solving other ppls probs too.
Rocketman.

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請參考下面網頁:
Noise in capture with with S-ATA Drive (nForce2, ABIT NF7-S):
http://www.videohelp.com/forum/viewtopic.php?t=189059

Interference lines in capture (nForce2, ASUS A7N8X):
http://www.videohelp.com/forum/viewtopic.php?t=200093

如果是nForce K7或K8晶片組, 更新nForce驅動程式(ASUS A7N8X有效, ABIT NF7-S可能有效?):
最新的 nForce 5.10 驅動程式下載網址如下:
http://www.nvidia.com/object/nforce_udp_winxp_5.10

PS: 注意主機板上用的Silicon Image SATALINK Sil3112ACT144 晶片版本(最下面一排的數字就是版本編號)
是1.1 還是1.2

另開一個主題"錄影到SATA硬碟有雜線, 但是錄影到IDE硬碟沒有問題. ":
http://www.pcdvd.com.tw/showthread.php?t=397055