Seagate circuit board swap - need same firmware number/ part ?

By netrate ·
I have a toast circuit board that doesn't even spin or get recognized in the bios - I want to buy a new one and swap it. The problem is I can get the same serial and model, but the firmware in my old drive is 3.AAC and the new firmware is 3.AAK.
Also the P/N is 9BJ14G-300, but the new one is 9BJ14G-308. Will this make a difference? Is there something I should look out for?

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All Answers

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In Theory

by TheChas In reply to Seagate circuit board swa ...

In theory, I believe that the new version of the controller board will function with your drive. I suspect that the revision number for the board and the firm-ware coincide.

The best path I have found for identical controller boards is to buy the exact same drive model off of ebay.

Keep in mind that changing the controller board may not fix your drive. If the controller board fried because one of the drive motors failed, a new board won't get you anywhere.

If you had a power supply or motherboard failure that also took out the drive, a new board has a good chance of fixing the problem.

Of course, if you have valuable data that you need to get from the drive, the minor cost of a controller board compared to the cost of data recovery service is worth a shot.


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Give it a try

by mjd420nova In reply to Seagate circuit board swa ...

If you're moving up with the revision numbers, the drive itself should work. if you have a clean room, you could swap platters too.

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P/N number and firmware

by netrate In reply to Give it a try

I don't even want to try the platter removal, beyond me. I am just hoping because the drive was purchased in Aug 2006, that I can find the same part number 9PBJ14G-300. I have seen 9PBJ14G-308 on Ebay, but I want to try vendors around here (of which three of them carry the ST3320620AS drive).
I think I must have fried it when I moved the case because the SATA drive (which is hot-swappable) fell over and hit the side of the case. My master hard drive on the computer works, so I don't think my motherboard is causing the problem and I have another computer with SATA to test it out on. I just hope I can get this to work.

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Physical Damage

by TheChas In reply to P/N number and firmware

With the admission that the drive fell, I myself would not even consider spending more than a few dollars on the hope that a new controller board will correct the problem.

Depending on how hard the drive hit when it fell, odds are that the heads are at least jammed if not toast themselves. It takes a lot more force to damage a circuit board than it does to mess up the heads and platters on a hard drive.

My guess is that the heads are jammed into the platters hard enough to stall the platter motor. This is what took out the controller board. Odds are if you change out the controller board the first sound you hear upon powering up the drive will be the good old click of death.

Even if you do succeed in getting the drive running with a new controller, I myself would just recover the data and then scrap the drive. It's just not worth the risk to use a drive that has had physical abuse.


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Physical damage

by netrate In reply to Physical Damage

It didn't really fall that far and it was on a padded rug. I was just looking for reasons why at the time, so I really don't know why it fizzled out.
Should I format the new drive before I take the circuit board from it and swap it?

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Power Check

by TheChas In reply to Physical damage

All you should need to do with the new drive, is verify that it functions and the BIOS can see the drive.

Formatting the new drive would be a reasonable test that there is nothing wrong with the drive or the controller.


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Wild Idea

by TheChas In reply to Physical damage


I just had a wild idea for you to try.

Since most of the connections between the controller board and the rest of the hard drive are through contact fingers and related low force interconnects, you might just try removing and re-installing the controller board on the drive you have.


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Replacing - Wild idea

by netrate In reply to Wild Idea

That isn't a bad idea. The problem is that I see a BLACK burn on the controller card, so that tells me something is up - but it is worth trying.

Ok, tried it and still nothing. It doesn't spin or anything. The computer bios doesn't even recognize it. The power is not making it through it looks like.

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