Case:
The Western Digital WD1600AAJS used by the customer’s desktop computer does not recognize it, and it has been normal a few days ago.
Solution:
Enter the PC3000 UDMA and find that the main axis motor can be rotated normally, and there is a magnetic head reset.The electric motor can not be charged again, and the magnetic head cannot be reset.Preliminary inferring may be caused by ROM, WD’s common problem is the module that cannot load the SA area normally by ROM errors.As a result, the initialization failure, the ROM SA region that comes with the UDMA can solve the problem well. After repairing the ROM, the hard disk recovers normal.