GT60 0ne upgrade to gtx780m or 880m

[trigger25sg]

Hi, i am thinking to swap over my gtx680m to my alienware m17xr as the alienware 680m is dead. So my question is

1. will 780m or 880m work? ( i heard 780m works but you need to flash the gt60 bios to 10p or 30p)

2. My msi gt60 is a windows 7 machine with E16F3IMS.10S bios, i tried looking everywhere on the net for a 10p or 30p bios but no luck. And is it windows 7 bios or windows 8? Any idea where i can get them?

[h=5][/h]3 Will optimus work with the gtx780m or 880m with the 10p or 30p bios?

Hope anyone can enlighten me on this.

Thank You.