Hey guys please help. I tried to re-install Windows 7 64-bit on my desktop's ssd, so I disconnected the drive from my desktop, and connected to my laptop using a hard drive enclosure. I went to disk management, and deleted all partitions and data. Then, I put my laptop to sleep, disconnected the drive, and connected the drive back to my desktop. However during the installation process, the drive didn't show up, and I already set the sata mode as AHCI. I disconnected the drive from my desktop, and connected it to my laptop again, but this time it didn't show up in disk management. Do you guys know what happen? Is my ssd dead? Thank you very much for your help.