Hitachi PCB 0A90439 Failure

PCB failures (Such as Hitachi PCB 0A90439) affect thousands of hard drives every year and often result in permanent data loss. A hard drive may suddenly fail to power on, and a computer may not detect that it is plugged in. Some failed hard drives will also show up in computer BIOS with incorrect brand/model information. PCB failures can also cause physical issues such as read/write head failures, and many PCB failure symptoms overlap with the symptoms of other physical hard drive issues.

Some emails from customers of Hitachi PCB 0A90439 failures are listed below, along with tips for replacing & repairing.

Hitachi PCB 0A90439 Failures:

Q: PCB 0J35276 BA5145B for WD80EZZX-11CSGA0

Hello,i’ve this hard drive with faulty pcb:WD80EZZX-11CSGA0P/N: 2W10100PCB Revision: 0A90439PCB Sticker: 0J35276 BA5145Bthis is an HGST helium drive, pcb has damaged SMOOTH L7229 chip.I can’t find this pcb anywhere, could any of you kindly lend me this PCB or at least help me to find it?Thank you.Attachment:WP_20190504_13_19_56_Pro.jpg [ 370.17 KiB | Viewed 10501 times ]

Q: PCB replace for Western digital

Hello,i’ve this hard drive with faulty pcb:WD80EZZX-11CSGA0P/N: 2W10100PCB Revision:001-0A90439PCB Sticker: 0J35276 B45145Cthis is an WD from WD my book drive, pcb has damaged SMOOTH L7229 chip.I can’t find this pcb anywhere, could any of you kindly lend me this PCB or at least help me to find it?Please could be in spain? ???

Q: WD80EFZX-68VW8N0 (HGST Model)

Hello Guys,i have a case maybe you guys can figure me out the solution.Model: WD80EFZX-68VW8N0P/N: 2W10102PCB: 006-0A90439Issue: Hard Drive spinning good and gets ready in a while with Proper ID & Capacity (Family Unknown/Not supported). But, when we try to access the sectors it gets busy again.Hope to see your revert soon.Thank you

Replacement Hitachi PCB 0A90439:

To repair a failure board, the simple way is swapping the failure board with a replacement board. Donor boards on HardDriveParts.com are listed below:

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