Hi, I have a black box intel i3-2100 @3.1, 8gb 5 years, Win 10. 18 mths ago my primary drive was not responding intermittingly and the BIOS wouldn't see it. It was suggested the HD it might be on the way out. So I got another HD & SSD. 8 months ago the same problem happened to my SSD. I would correct it by swapping the SATA to another port. That was happening every 3-4 weeks. Now it happens daily or more. Now to correct it I unplug the SATA, reboot, replug in SATA, change boot sequence back to SSD. First I thought it was the drive, then possibly the psu, I don't really have a clue. I thought the whole pc locked up, but I noticed certain processes keep going like screen, mouse but not clicking, Skype was still working voice but screen locked up. Any ideas welcome.