Seagate ST3500413AS ST3250318AS 160/250/320/500Gb HDD PCB 100535704 REV A

This is just the circuit board of a hard drive, NOT the entire hard drive. We can only provide basic compatibility information for the drive. So, must be the original circuit board ( i.e. bad board ) BIOS chip to get a good board, so the hard disk can be identified.

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