I connected to my laptop as an external usb using a enclosure and worked as expected. I formated the hd as ntfs and any problem in the laptop.
But when I put into the MB P5Q, its Bios does not see it. I had changed the cables, and does not worked.
Crucial for example does list some compatible SSDs for your board.
If you connect the SSD and open Disk management in Windows, is the SSD listed there?
I found it!!
This is what happends with this board :
At orange and white sata sockets you can connect the sata HD and BluRay Rom or Media. You must connect into the Red sata sockets to get them work.
If you connect only the Media Rom into the white or the orange one, the bios will not detect the ssd, but the Media rom will be recognized.
If you connect the SSD HD into the Orange or the White one, the bios will not recognize the HD.
Solution, connect the SSD HD in one of the red ones.