This error "Reboot and Select proper Boot device or Insert Boot Media in selected Boot device and press a key" came up when pc started, i seen on the bios screen it didnt detect hard disk,but it was detected after i took out the cabinate fan attached with the power supply which is connected to hdd power wire. I dont know what/why it was caused . But needed to know if that thing damaged or corrupted my hdd. Has there been any cases like that? Pc is working now but need to know if it has any faulty thing or something.