EX58-UD3R PCI Clock (33.3Mhz)

[acer4ever]

I'm getting audio distortion under Windows 7 with my Audigy 2 ZS.

After trying every single Creative driver I decided to let the entire system at stock speed and the cracking sound disappeared.
I know the system is stable as I can run prime95 overnight. (i7 920 @ 3.6 / BLCK 212 / multi x17 / 3x2gb 1696)

As the Audigy 2 ZS is the only PCI device installed, I think the trouble could be in the PCI Clock Frecuency.
Is there a way to fix the PCI Clock at 33.3Mhz? or is this set by default ?

Any advice regading my system overclock/audio distortion issue would be helpful.

[Pottypete]

Hi
PCI-e frequency can be accessed in bios in "MIT" section,
Check for w7 drivers on Audigy 2 ZS.website
regards

[acer4ever]

Thank you,
but I meant PCI Clock Frecuency which should be 33.3Mhz not the PCI-E Frecuency (100Mhz)

[acer4ever]

No ideas?
I discovered that the problem is caused after changing the vcore from auto/normal to any other value.

Actually it is set to 1.136v for my 920 D0 @ 3.7ghz,

The only way to get clear sound from my Audigy 2 ZS is by leaving the vcore in auto/normal.