Question 14TB WD HDD not spinning due to a bad PSU ?

May 27, 2024
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I stumbled upon this forum from fzabkar, and I need assistance. I was trying to swap hardware, and the new PSU may have fried my HDD.

I ordered a multimeter and did some reading. Everything looks good except 1 fuse. (I only tested 1 drive)

How do I change the fuse?
  1. 3 of 14tb same model (006-OB40385)
  2. 1 New 6TB
 
Yes, I do have a soldering iron, but by a blob of solder, do you mean just solder over the 4A fuse?
Yes, but I only suggest this if the user has no experience with electronics. If you can find an smt fuse, and are comfortable with soldering, that is of course the better option.

If you can upload a detailed photo of your PCB, I can show you the test points for the onboard supply voltages. This will give you some confidence before you power up the PCB.
 
Yes, but I only suggest this if the user has no experience with electronics. If you can find an smt fuse, and are comfortable with soldering, that is of course the better option.

If you can upload a detailed photo of your PCB, I can show you the test points for the onboard supply voltages. This will give you some confidence before you power up the PCB.
Here you go
Asqo8x9.jpeg
HRzMBDp.jpeg
 
The blob of solder of solder didn't work. I've spent too much time trying to fix these drives or researching. At this point I will get new hardware and start all over 😥😢😭
 
The blob of solder of solder didn't work. I've spent too much time trying to fix these drives or researching. At this point I will get new hardware and start all over 😥😢😭
Give me some time to get back to you. Your photos weren't the best, so I had to search for better ones. One of the inductors looks like popcorn, but I don't know if that's just an artefact of the lighting. One of the 2 ROMs has a line through the body, but that could be another artefact.

Your PCB has secondary protection in addition to the fuses and diodes. That may be where the problem is. I'm assuming that the solder blob didn't shut down your computer's PSU.
 
Give me some time to get back to you. Your photos weren't the best, so I had to search for better ones. One of the inductors looks like popcorn, but I don't know if that's just an artefact of the lighting. One of the 2 ROMs has a line through the body, but that could be another artefact.

Your PCB has secondary protection in addition to the fuses and diodes. That may be where the problem is. I'm assuming that the solder blob didn't shut down your computer's PSU.
Thank you!
 
Thank you! I will review it and try again tomorrow. However, I was so upset that I returned my multimeter and a few tools I purchased.

I gambled by repacking 1 of the drives and shipping for replacement. Hopefully, they fulfill.

My other concern is that I have 3 PSUs, and I may have mixed all the cables. 🤕🤒. Is there a way to sort them correctly?