MSI Released a few Bios's to support the NVIDIA System Utility
K7N2 Delta-ILSR: v7.6
K7N2 Delta-L: v5.6
K7N2G-ILSR: v1.8
K7N2 (MS-6570) & K7N2G-L
K7N2 Delta Series downloads:

K7N2 Delta-ILSR v7.6
K7N2 Delta-L v5.6
K7N2G-ILSR: v1.8
K7N2 (MS-6570) & K7N2G-L