AMD have updated their 8000 series core logic (chipset) driver for the AMD Opteron? processor!
Windows Server 2003, Windows 2000 and Windows XP System Interrupt Controller (IOAPIC) Driver Version 1.81 - Microsoft digitally-signed, for platforms using AMD-8131? and AMD-8132? HyperTransport PCI-X tunnel.
Windows Server 2003 x64 Editions and Windows XP x64 Edition IDE Bus Master Driver Version 8.2.8.3 - For 64-bit platforms using AMD-8111 HyperTransport I/O Hub. Microsoft digitally-signed, for Windows Server 2003 x64 Editions and Windows XP x64 Edition.
AMD-8000? Series Core Logic (Chipset) Drivers
Windows Server 2003 x64 Editions and Windows XP x64 Edition IDE Bus Master Driver Version 8.2.8.3 - For 64-bit platforms using AMD-8111 HyperTransport I/O Hub. Microsoft digitally-signed, for Windows Server 2003 x64 Editions and Windows XP x64 Edition.
AMD-8000? Series Core Logic (Chipset) Drivers