NForce 600
The nForce 600 chipset was released in the first half of November 2006, coinciding with the GeForce 8 series launch on November 8, 2006. The nForce 600 supports Intel's LGA 775 socket and AMD's Quad FX platform and replaces the nForce 500 series. AMD chipsets. nForce 680a SLI. Specially made for the AMD Quad FX platform proposed by AMD, providing a total of two CPUs and multiple graphic cards configuration (SLI) working on a single chipset. Intel chipsets. nForce 680i SLI. NVIDIA nForce 680i SLI System Platform Processors (SPPs) and Media Communications Processors (MCPs) are the  top-of-the-line motherboard for Intel users in the nForce 600 series. nForce 680i SLI hotfix. NVIDIA has issued a fix named NV121906 in late December 2006 for 680i SLI motherboards. This hotfix was released because users have reported disconnect or write error issues with Serial ATA disk drives on their nForce 680i motherboards. It is an update specifically for SATA Disk Drives and system instability. System instability is observed in the following ways (not a complete list): To address them, BIOS updates were released for some NVIDIA nForce 680i SLI based motherboards that eliminate those symptoms. Affected motherboards  include: This update is supposed to improve system stability and prevent future stability issues related to SATA disk drives on those systems requiring this hotfix. NVIDIA has strongly recommended that all customers upgrade their motherboards to the newest available BIOS revision that their nForce 680i-based motherboards could support, regardless of whether or not they have experienced the issues. Also, NVIDIA has stated that this upgrade will preserve the user's current computer settings.