What is Hard Drive Pcb?
The green board on the lowest of the hard disk drive is known as Printed Circuit Board(Pcb). The main function of the Pcb is to supply power to the hard drive, vocalize speed and rotation of the spindle, and operate all internal operations through its firmware. Essentially, Pcb is the brains of the hard drive that all components are heavily dependent upon.
Hard Drive
Why Swap Pcb Boards?
Hard disk drives that do not spin up after the power has been supplied can be diagnosed as Pcb failure. Because data rescue assistance is very expensive, sometimes we would prefer to swap them ourselves.
How to find the matching Hdd Pcb boards?
Western Digital - same board number which is etched on the Pcb, begin with 2060-
Seagate - same board number which is etched on the Pcb, begin with 100..., and the same Main Controller Ic. If you can't find the number on the Pcb (Old Models), you should find the same Main Controller Ic.
Maxtor- same Main Controller Ic(The biggest chip on the board)
Hitachi- same data on the small white label (first two lines)
Samsung - same board number which is etched on the Pcb, begin with Bf41-
Fujitsu - same board number which is etched on the Pcb, begin with Ca
Hard Drive Pcb Swap Process:
Remove the Pcb from both hard drives with star screwdriver. Replace the damaged Pcb with exchange one. If you Hdd spins up, but can't be recognized, you should also exchange the Bios chip on it. If there is no matching 8pins Bios chip on the Pcb, it means the Bios chip is integrated on the Main Chip Ic, then you should take off the damaged Pcb's Main Chip Ic to the donor Pcb. It is more complex to exchange the Main Chip Ic than exchange the Bios chip. If you should do, please do some test on the Pcbs which don't have the prominent data.
What is Pcb's Bios Chip?
All of the 8pins (4 pins on each sides) with 25P05Vp, 25P10Vp, 25F512, 25F1024, 25F1024An, Sst25Vf512, Sst25Vf010, etc. Are the Bios chip. It is easy to be found because there are not many 8pins chips on the board.
In most cases, you should exchange the Bios before you swap hard disk pcb. You should have determined technique.
Note: You should know the hard drive failures are not always caused by Pcb failure, swap Pcb can't warrant to fix all of the hard drive problems.
Guide to Swap Hard Drive PcbFriends Link : psp2 go Reviews Cobra xrs 9330