2014年8月4日 星期一

Information to Swap Hard Drive Printed circuit board

What's Hard Drive PCB?



The green board around the bottom on the tough disk drive is known as Printed Circuit Board(PCB). The main function on the PCB is always to supply power towards the challenging drive, keep velocity and rotation from the spindle, and management all inner operations by means of its firmware. Basically, PCB will be the brains on the really hard drive that all components are heavily dependent upon.



Why Swap PCB Boards?



Really hard disk drives that do not spin up following the electrical power is supplied may be diagnosed as PCB failure. Because information recovery services is very expensive, at times we would want to swap them ourselves.



Tips on how to come across the matching HDD PCB boards?



 Western Digital - very same board quantity that is etched over the PCB, get started with 2060-

 Seagate - same board quantity which can be etched within the PCB, commence with 100..., as well as the same Most important Controller IC. Should you cannot come across the variety about the PCB (Previous Designs), you need to come across precisely the same Main Controller IC.

 Maxtor- same Principal Controller IC(The largest chip about the board)

 Hitachi- same data on the smaller white label (1st two lines)

 Samsung - identical board quantity and that is etched within the PCB, start off with BF41-

 Fujitsu - identical board quantity that's etched to the PCB, start with CA



Hard Drive PCB Swap System:



Take out the PCB from each tricky drives with star screwdriver. Change the damaged PCB with replacement one particular. In the event you HDD spins up, but cannot be recognized, you need to also exchange the BIOS chip on it. If there's no matching 8pins BIOS chip about the PCB, it implies the BIOS chip is integrated within the Main Chip IC, then you certainly should get rid of the broken PCB's Key Chip IC to the donor PCB. It's much more complex to exchange the principle Chip IC than exchange the BIOS chip. For those who must do, please do numerous check over the PCBs which will not have the critical data.



Precisely what is PCB's BIOS Chip?



Each of the 8pins (4 pins on every sides) with 25P05VP, 25P10VP, 25F512, 25F1024, 25F1024AN, SST25VF512, SST25VF010, etc. would be the BIOS chip. It really is easy for being observed mainly because you will find not a lot of 8pins chips within the board.



In many instances, you should exchange the BIOS before you swap hard disk pcb. You should have particular procedure.



Note: You ought to know the challenging drive failures are certainly not often triggered by PCB failure, swap PCB can't ensure to repair each of the challenging drive complications.

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