I have installed a WD Blue 3D NAND Internal PC SSD - SATA III drive into my desktop computer, and I need a convenient way to disable the SSD so that when I boot the computer from a USB flash drive, the SSD is not accessible and cannot be infected by a virus. There is no option in the BIOS setup to disable SATA, so I’m thinking of installing a switch to open the +5 volt red wire going to the power connector on the drive. I would not use this switch while the computer is on, only when it is off. The idea is to disable the SSD before booting from a USB flash drive.
My question is, can the power to the SSD be turned off while leaving the SATA data cable plugged in, without damaging the SSD? That would be equivalent to unplugging the power cable while leaving the SATA data cable plugged in.