I built my PC about 3 years ago or so. It has a 600W power supply, with an internal 1TB HDD, 5 TB HDD, 400GB HDD, and my 200GB SSD which I use to run the OS off of.
Every so often my OS will freeze which forces me to reboot. When rebooting it cannot find my SSD and states there is no capability to boot off the next drive. Every time this happens the SSD is not visible in the BIOS settings so I need to reseat the hard drives and boot back into the bios to fix the boot order. It doesn't happen often maybe about once a month or so but its extremely annoying.
I read somewhere maybe the sata cables may be bad or something maybe I need more power?