I’ve been running a My Passport Studio 500GB external hard drive through the firewire port on my iMac for about a year. It just quit working on me this week with no warning sign. I have it piggy backed onto another drive which is also connected through firewire. I noticed that it wasn’t working when the drive icon disappeared from my desktop. I’ll break this down as best I can with my symptoms and trouble shooting.
Disk Icon disappeared from my desktop.
Display is still showing the drive name & amount of remaining space.
- I unplugged the drive and connected it to my 27" iMac directly with the firewire port using the WD supplied cable. The power light comes on for about 1/2 a second then shuts off. I can hear the drive start to spin up but it stops before reaching full speed. It then tries to spin up again, then stops. It repeats this for roughtly 20-30 seconds then makes no noise.
- I then repeated step 1 with the WD supplied USB cable, directly to my iMac. The same results.
- I tried steps 1 & 2 connecting it to my Mac laptop, same results.
- I tried steps 1 & 2 connecting it to my Dell laptop, same results.
I have disassembled the drive and have removed the controller. I will be trying to connect the sata drive to a computer with a USB adapter tonight to see if it will spin up. I did notice some discolorization on the PCB board, which leads me to believe this is where the problem is.
So, my question is if it fails when connected directly to the sata port, how do I replace the PCB board? I know I have to use a Torx head to disassemble it, but what else do I need to know? Is there something involved with Firmware or anything else I should know? Can I just order a replacement board and install it?
I took some pictures…