SSD causes everything to break

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Swanton007

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Nov 17, 2013
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Hello all, recently I have been having some issues with recovering data from my supposedly broken hard drive. A friend said that you guys might be able to point me in the right direction. Any help would be greatly appreciated.

2 days ago I decided to buy an SSD (Link to SSD) to run my OS and common programs on. I managed to successfully install windows and a few other programs. I plugged in my data drive (Link to HDD), checked all the cables, and booted up the machine.

It went for about 4 seconds, then turned off and automatically restarted. It went past the UEFI bios prompt and then wham... "No bootable drive found". Upon looking in the bios, no matter what changes I make the SSD and HDD arent detected. I tried just using the SSD, or just using the HDD, but neither one is detected.

I then spent the last 2 days trying to figure out what went wrong. This morning I took it into best buy (where I bought the SSD) and I found out that both the SSD and HDD cannot be read. Im assuming something went wrong when they both were connected. What exactly went wrong still baffles me.

However my main efforts atm are on recovering the data on my data drive. As it contains so much important info. I have already went through a handful of programs but none of them are able to detect the harddrive (the bios isnt able to either). Am I out of luck? I don't really have the cash to pay for a professional recovery, and most likely it would take too long for my needs. Is there any hope to recover the data if the bios isnt able to recognize it?



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tl: dr: Harddrive stopped appearing in bios. Anyway to quickly recover the data without needing to send it in?
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Also side note: The drive is still spinning, so I wouldn't say its broken.
 
Solution
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Perhaps your PSU killed them both.

If so, then check the 5V TVS diode and associated "fuse" on the Hitachi drive.

http://cdn.shopify.com/s/files/1/0207/3304/products/0F12117_HDS5C3020ALA632_220_0A90302_01_hitachi_pcb_1024x1024.jpeg?2274

The 5V diode is the third vertical black component from the right, just below the SATA power connector. The fuse is the small vertical component immediately to the right of the diode. If the fuse is open circuit, or the diode is shorted, then this will point to a problem in your PSU.
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fzabkar

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Sep 22, 2010
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Perhaps your PSU killed them both.

If so, then check the 5V TVS diode and associated "fuse" on the Hitachi drive.

http://cdn.shopify.com/s/files/1/0207/3304/products/0F12117_HDS5C3020ALA632_220_0A90302_01_hitachi_pcb_1024x1024.jpeg?2274

The 5V diode is the third vertical black component from the right, just below the SATA power connector. The fuse is the small vertical component immediately to the right of the diode. If the fuse is open circuit, or the diode is shorted, then this will point to a problem in your PSU.
 
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Solution
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Swanton007

Honorable
Nov 17, 2013
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Ill go ahead and try to remove the pcb so I can get a better look at it. If it is damaged, would a simple pcb replacement be enough to get it working again? Or would I risk damaging the drive simply by removing the pcb?

Also to confirm, these are the two things I should check correct?

5mrgN.jpg


Thanks for the help so far.
 
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fzabkar

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Sep 22, 2010
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With Hitachi drives you need to transfer the "NVRAM" chip from patient to donor. This chip stores unique, drive specific information. It is the 8-pin chip marked with "25FS406" at the lower right corner of the large LSI MCU.

A further potentially dangerous complication is that your donor PCB's NVRAM may be corrupted if you install the donor PCB without an NVRAM transfer.

BTW, if the 5V TVS diode is shorted, then there is a real chance that the preamp on the headstack will have been damaged.
 
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Swanton007

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Nov 17, 2013
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Thanks for the help so far! I manged to get my hands on a torx screwdriver and remove the pcb. Right away I noticed the problem. There is a huge burn mark going straight though the padding. Under the padding there is a single chip/diode thing that looks to be burnt. It isnt the 5v TVS diode, or the fuse.

Its this thing
5ojQr.png


Thanks once again, any help provided is greatly appreciated.
 
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fzabkar

Judicious
Sep 22, 2010
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The circled component and its sister component directly below, together with the 1R0 coil, constitute a switchmode converter which generates the Vcore supply for the LSI MCU. This converter down-converts the incoming +5V supply.

Even though the 5V diode does not appear to be visibly damaged, I would still measure its resistance and the resistance of the associated resistor. If either of these components is damaged, then the preamp on the headstack must be suspect.

In any case, IMHO the most expedient DIY solution would be to replace the PCB and transfer the NVRAM chip to your donor PCB.
 
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