Quote Originally Posted by MatiasOC-S View Post
The ssd works on an ASUS M4A785TD-V EVO mother, even boots the win7 installation made on the DFI mother.
The DFI has the latest bios, I flash my motherboard to a previous version and do not work, then I flash it again to the last version and still the same issue.
Yes, currently am posting on the DFI with my old HDD on win7 without problems. Really is a very strange issue.
Indeed this is strange. When you switch out the DFI to ASUS is the only variable the motherboard?
If possible, try to use all of the same working components (Power Supply, Video Card, even sata cables)

At this point, I'm not sure what the issue could be.

I know we touched on AHCI earlier, but for the heck of it can you see if IDE helps get it to recognize more consistently?

Finally, can you try flashing the drive to our latest 5.0.1 firmware to see if this helps?
http://patriotmemory.com/support/driversp.jsp