What is a Hard Drive PCB?
What is Hard Drive PCB?
Hard Drive PCB is a green board on the bottom of the hard drive is known as Printed Circuit Board(PCB). The primary function of the PCB is to supply power to the hard drive, uphold speed and rotation of the spindle, and control all internal operations through its firmware, effectively, PCB is the brainpower of the hard drive that all components are greatly dependent upon.
Why swop Hard Drive PCB?
Hard drives that fail to spin after
the power has been supplied can be diagnosed as PCB failure meaning faulty
hardware. Since data recovery service is very expensive, sometimes it is preferable
to swap PCB instead of changing entire hard drive or getting data recovery
which costs a fortune.
Hard Drive PCB swop Process:
Remove the PCB from both hard drives with star screwdriver. Replace the damaged PCB with replacement one. If the Hard disk spins up, but can’t be recognized, next step would be to exchange the BIOS chip installed on the hard drive. BIOS chip is a 8 Pin Black Color CHIP installed on the hard drive. If there is no matching 8 pins BIOS chip on the PCB, it means the BIOS chip is incorporated on the Main Chip IC, then you should remove the damaged PCB’s Main Chip IC to the donor PCB. It is more intricate to exchange the Main Chip IC than replace the BIOS chip. If you should do, make sure you do it on the CHIP with no data or else you are at the risk of losing data which would diminish our purpose of replacing PCB to save the data.
What is PCB’s BIOS Chip?
The BIOS chip normally comes in the form of a rectangular DIP (Dual In-line Package)or a square PLCC (Plastic Leaded Chip Carrier) package. The capacity of BIOS chips is measured in Megabits (Mb). Most BIOS chips these days are 2Mb (256KB) in size. These higher capacity chips allow the manufacturer to offer more features than is possible with the smaller 1Mb chips.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 locate the CHIP since there are not many 8pins chips on the PCB.
In most cases, you should swap the BIOS before you swap hard drive pcb.
Note: One thing to note is not all hard drive failures are result of PCB failure and it is not certain that swapping hard drive pcb would fix hard drive, it is one of the reasons of hard drive failure
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www.Pcb.Hdd.com is a Online Retailer of Hard Drive PCB in UK selling all kinds of hard drive pcb for samsung, seagate, maxtor hard drives