Seagate ST3400620A PCB Board

ST3400620A is a common model of Seagate hard drives. Many customers write to HDDZONE to find a suitable replacement circuit board for this type of hard drive. We know that replacing the circuit board is a very simple way to repair the hard drive’s board fault. By replacing the board, the hard disk can be restored, so we can recover data on it. But first you need to know that the same model of hard drive (such as ST3400620A Seagate hard drive, as shown below) may use one or more boards with different board numbers, we will list the possible boards of the Seagate ST3400620A hard drive bellow:

Seagate ST3400620A Hard Disk Drive

• ST3400620AS, 6QG, SU, PN 9BJ144-308, FW 3.AAK, Seagate 400GB SATA 3.5 Hard Drive;
• ST3400620A, 5QH, WU, PN 9BJ044-305, FW 3.AAE, Seagate 400GB IDE 3.5 Hard Drive;
• ST3400620AS, 3QG, AMK, PN 9BJ144-300, FW 3.AAC, Seagate 400GB SATA 3.5 Hard Drive;
• ST3400620AS, 5QH, WU, PN 9BJ144-305, FW 3.AAE, Seagate 400GB SATA 3.5 Hard Drive;
• ST3400620AS, 5QG, WU, PN 9BJ144-305, FW 3.AAE, Seagate 400GB SATA 3.5 Hard Drive;
• ST3400620AS, 9QG, TK, PN 9BJ144-308, FW 3.AAK, Seagate 400GB SATA 3.5 Hard Drive;
• ST3400620AS, 5QH, WU, PN 9BJ144-300, FW 3.AAC, Seagate 400GB SATA 3.5 Hard Drive;
• ST3400620AS, 3QH, AMK, PN 9BJ144-300, FW 3.AAC, Seagate 400GB SATA 3.5 Hard Drive;
• ST3400620A, 3QH, AMK, PN 9BJ044-300, FW 3.AAC, Seagate 400GB IDE 3.5 Hard Drive;
• ST3400620AS, 5QH, WU, PN 9BJ144-308, FW 3.AAJ, Seagate 400GB SATA 3.5 Hard Drive;
• ST3400620A, 9QH, TK, PN 9BJ044-305, FW 3.AAE, Seagate 400GB IDE 3.5 Hard Drive

HDD Serial Numbers: 6QG0W2XK, 3QG00GQ8, 5QH0ASNP, 5QH05WYX, 5QG0HVV2, 5QG0AG0B, 9QG8BF4G, 5QH01B8B, 5QH00VD5, 5QH02S86, 5QH00V79, 3QH00PTH, 5QH0CG5F, 9QH01K3S

Seagate ST3400620A HDD PCB Boards:

• ST3400620A Seagate PCB 100406538
• ST3400620AS Seagate PCB 100355589
• ST3400620AS Seagate PCB 100406533
• ST3400620AS Seagate PCB 100435196

Seagate PCB Swapping: Seagate PCB Replacement

In order to determine your hard disk board number, the best way is to use a screwdriver to open the hard disk, find the circuit board of the hard disk to determine the board number, the board number of the hard disk is printed on the circuit board, some are on the front side and some are on the back side.