From page 436 of the ICH7 spec (January 2006)
bit 3 of SMI_EN:
LEGACY_USB_EN — R/W. 0 = Disable. 1 = Enables legacy USB circuit to cause SMI#.
temporarily disabling this single bit allows the delay loop calibration to work.
From page 436 of the ICH7 spec (January 2006)
bit 3 of SMI_EN:
LEGACY_USB_EN — R/W.
0 = Disable.
1 = Enables legacy USB circuit to cause SMI#.
temporarily disabling this single bit allows the delay loop calibration to work.