I have one time faced the same problem that the system could not see my SSD, then I used killdisk to arase all data in the drive, it then was recognized as a normal drive. May be you should try.

I have the same issue with my X25-M on Intel ICH10R chipset. I bought this drive to use it as system disk, and now I'm really disapointed. Why no one from Intel has responded to this thread yet? This drives are not cheap and I want my money back!

I have solved my problem, here iz the link to evga forums - http://www.evga.com/forums/tm.aspx?high=&m=200113&mpage=1#202483

Problem solved! It was a bit of a hassel but I finally got Windows7 to boot from my X25.  I had a bunch of SATA drives in RAID mode connected to my MB (Asus Striker Extreme) and needed to disconnected them first and disabled the RAIDsetup in the Bios. I upgraded the firmware on the X25 drive and voila! Windows7 accepted the X25 as installable target. After W7setup I reconnected the SATA drives and enabled RAIDmode only for the SATA drives. (Don't forget to check your HD boot priority in your Bios because it might change when reconnecting the SATA drives). Funny thing though, the Intel SSD toolkit still can't connect to my X25.