ASUS SK8V Dual Core Support?

[Akacl]

I wanted to update my ASUS SK8V to a dual core Opteron 285/885 or the 290/880 opteron CPU but unsure if the SK8V will support those chips. The Asus website isnt much help and I know with the bios update the SK8V will support dual cores, but I don't know up to what speed/model or if it supports all dual core 940 chips. If anyone knows, please inform me. Thanks