Phoronix posted a review on the Tyan Tomcat K8E-SLI S2866 motherboard

Based upon the K8E S2865, the K8E-SLI S2866 is Tyan's initial offering when it comes to NVIDIA Socket 939 SLI on the nForce PRO 2200 Chipset. Yes, that is right an nForce Professional 2200 Chipset implementation on a Socket 939 Athlon 64 system and not the nForce4. Presently Tyan has the K8WE (S2895), which is nForce Professional based, and is capable of running in SLI with the Opteron 200 series, but the K8E-SLI is their first time venturing into this new arena. With us today we have the K8E-SLI and we shall see just how well it fares in the world of Scalable Link Interface.

Tyan Tomcat K8E-SLI S2866 Review