Take the 2-minute tour ×  This is an issue that's been happening
for a while yet, but only recently have I been able to put any
attention to it.  About 3 weeks ago, I bought 2x1TB WD Caviar
Black drives. They installed fine, and I began migrating data to
them.  A week later, suddenly BIOS is taking 3x normal to
recognize the drives, but they do get recognized. However,
Windows doesn't load them and the only way I can get them to be
seen is to rescan the disks in Disk Management. That does the
trick, but the fix is only good until the next reboot, and I
have to do it all over again.  A couple things to note:    • 2
new drives are exhibiting identical behavior in Windows   •
Behavior persists when changing cables/SATA ports   • I isolated
a problem drive, removed it from the system, and bootup is back
to normal, but drive is still not recognized.   • I've had
similar problems with hard drives on this computer, two 500GB
drives from the initial build went bad 2 months apart, and these
are the replacement drives.