I have a Intel based computer that I built with various parts. It is a Intel 3.2GH, 1GB RAM, and a ASUS 478 motherboard. The system drive is a Seagate SATA drive that works off the integrated SATA controller on the motherboard.
I had no issues with the computer for the first year. Then every so often it just locks up. I must cycle the power. When I restart the drive boot order in the bios is missing my SATA drive. I have to add it back in. Sometime the bios will not see the drive until I reseat the SATA cable on the motherboard.
I have tested the drive, changed the SATA cable, changed the motherboard (integrated SATA controller). I have changed bios version. After changing the motherboard, the issue went away for about a month. I am not what to do next. If it locks up it always right after startup.
There are no entries in event viewer for the lock up and no hardware events listed.