Long story short: Downloaded Star Trek Bridge Crew today to play with some friends. Later I reconnected my main monitor (had been upstairs for work from home), but couldn't get my PC to wake up. I tried rebooting, and it wanted me to insert bootable media.
Checked the BIOS and it was only seeing one HD, and not the boot drive. I opened up the case and unplugged and replugged the drives; now it doesn't see any of them.
And ideas? I built this computer from parts about nine years ago. Thanks in advance!