SM Bus Controller Driver

[marvcarino]

Where can I download a sm bus controller driver?
Thanks. =)

Operating System
MS Windows XP Professional 32-bit SP2

Motherboard
Model: nVidia-nForce
chipset vendor: NVIDIA
chipset model: nForce2 Ultra400
Southbridge vendor: NVIDIA
Southbridge model: nForce2 MCP
Southbridge revision: A3

CPU
Cores: 1
Threads: 1
Name: AMD Athlon MP
Codename: Thornton
Package: Socket A (462)
Technology: 0.13um
Specification: AMD Athlon(tm) XP
Family: 6
Extended Family: 7
Model: A
Extended Model: A
Stepping: 0
Instructions: MMX (+), 3DNow! (+), SSE