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Computer Locks Up

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.

Any thoughts would be appreciated.

Thank you.
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2 Solutions
did you try another cmos battery just in case that is why it is not retaining the drive
Look inside the BIOS, maybe there is a setting for the spinnup time of the HD. If this is too short your disk may not yet be on when the PC tries to boot. Also use the disk manufacturer's utility software to test the disk, sometimes these tools also let you change the spinnup settings of your disk. Change your cables again. Look for high quality SATA cables, I've had issues where that has helped.
i would test with another drive - it can generate interface signals that are "on the edge" : sometimes recognised, sometimes not. Or a bad contact on the logic
hey bam, what's your status? plz provide feedback for further assistance.
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