Here's a new set of nForce4 Drivers version 8.12 for 32 Bit and 64 Bit Windows.

* Ethernet NRM driver version 50.09 (WHQL)
* Network management tools version 50.09
* SMBus driver version 4.50 (WHQL)
* Installer version 4.89
* Win2K IDE SATARAID driver version 6.21 (WHQL)
* Win2K RAIDTOOL application version 6.21
* WinXP IDE SATARAID driver version 6.21 (WHQL)
* WinXP RAIDTOOL application version 6.21

Drivers are available at both TweaksRUs - Station Drivers