Where is the csm option during boot on my Asus D550M laptop?

Where is the csm option during boot on my Asus D550M laptop? I am trying to load windows 7 and there is no launch csm option any more! Please help!!!
Asked by: Guest \| Views: 192

Total answers/comments: 2

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Guest [Entry]

What I did was disabling all boot devices in boot priority section; then I entered in uefi bios os and restarted pc; then in my boot options I saw my flash.

Guest [Entry]

"The version BIOS 515

Update EC FW is a solution fast

http://www.asus.com/supportonly/D550MA/H...

Ir. Tshimsix"