Hi, my spec are the following. Asrock z77 extreme 4 with last bios 2.10,sandybridge i7 2600k, vertex 4 128 gb with 1.5 firmware, ati hd 5770, memory is gskill ddr3 ares 1600 mhz. The vertex 4 is new and have never installed a windows on it. The problem is that the bios have always recognized the Vertex 4 but when i want to do a new install windows 7 x64 it asks me for a driver. I used the cd driver of asrock, latest intel drivers (rst) and all latest drivers from asrock web with a usb and it still doesnt detect my vertex 4. Even if I open console in the windows installation, diskpart recognizes the drive and I can format it! I formatted it with NTFS but It didnt solve. Tried again the Win 7 install in the new computer and I have the same error. I have to say in bios its configured as AHCI I tried Intel Sata3 ports and Asmedia sata 3 ports without success. I havent tried IDE mode and/or SATA2 ports, but i have read if i install win7 on those ports and after i move the drive to sata3 I will have problems. I connected the vertex 4 to an old computer (DFI lanparty nf4-ultra d) as a secondary drive and I can explore the vertex 4 without problems and save files inside it.