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Vitalius
 Post subject: How do I identify the chip with the Firmware on the PCB?
PostPosted: June 15th, 2012, 15:38 
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Joined: June 10th, 2012, 3:37
Posts: 4
Location: United States
I just purchased a hard drive that was made approximately a month after the one I aim to repair that is fully functioning. They are the same everything besides that one detail. Even the layout of the PCB's themselves.

Now, I know I need to transfer the Firmware chip from the old HDD to the new HDD's PCB. However, I have no idea which one that is. Any help would be appreciated.

Here are pictures of the HDD PCB in case you can identify it simply by looking:

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harddrivespecialist
 Post subject: Re: How do I identify the chip with the Firmware on the PCB?
PostPosted: June 16th, 2012, 8:08 
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Joined: January 15th, 2008, 11:06
Posts: 1419
Location: Providence, RI. Boston, MA USA
Picture is not to clear, but it seems like one on a bottom right of Processor chip (LSI) and it has 8 legs

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Vitalius
 Post subject: Re: How do I identify the chip with the Firmware on the PCB?
PostPosted: June 16th, 2012, 9:33 
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Joined: June 10th, 2012, 3:37
Posts: 4
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Thank you very much. May I ask how you figured it was that one?
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Keatah
 Post subject: Re: How do I identify the chip with the Firmware on the PCB?
PostPosted: June 17th, 2012, 16:14 
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Joined: April 26th, 2012, 1:52
Posts: 388
Location: Chicago, USA
Try googling the chip numbers and reading the data sheets.
It is typical to have serial-roms on controller boards. And this certainly a serial-rom.

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harddrivespecialist
 Post subject: Re: How do I identify the chip with the Firmware on the PCB?
PostPosted: June 17th, 2012, 21:26 
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Joined: January 15th, 2008, 11:06
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Location: Providence, RI. Boston, MA USA
Vitalius wrote:
Thank you very much. May I ask how you figured it was that one?

Experience, probably. :)

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shahij
 Post subject: Re: How do I identify the chip with the Firmware on the PCB?
PostPosted: June 18th, 2012, 14:33 
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Joined: March 11th, 2008, 4:35
Posts: 1052
Location: Bangladesh
It seems to me it's CLA series HDD... it doesn't have NVRAM by the way...

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