Replacement WD PCB 004-0B41714 is available on HDDZone.com. To swap Western Digital PCB with Board Number 004-0B41714, your should make sure the Board Number on your original pcb is 004-0B41714 too.
WD PCB 004-0B41714 Image:
WD PCB 004-0B41714
WD PCB 004-0B41714 Additional Images:
WD PCB 004-0B41714
WD PCB 004-0B41714 PCB Number
For most of the PCB boards, we also need to swap the BIOS Chip from your original PCB to the replacement PCB, in order to make the PCB compatible with you hard drive.
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Note: Send clear photos of your PCB (both sides) by attachments will make everything easier!