Hard Drive PCB Replacement Service

Hard drive failures caused by PCB damage can often be resolved by the PCB replacement. Since users generally do not have extensive knowledge about hard drive repair, they typically search for a hard drive PCB replacement service to address the problem. Today, we will take a closer look at the specifics of hard drive PCB replacement services.

Hard Drive PCB Replacement Service

A complete hard drive PCB replacement service includes the following:

Step 1: Determine if the hard disk failure is caused by the PCB;

When a hard disk is received, the first step is to determine the cause of the failure. Signs of PCB failure include:

  • The HDD can't spin up, with either no sound or a short, quiet clicking sound.
  • A burning smell coming from the HDD or PCB.
  • Burned components visible on the PCB.
  • Connection to an incorrect power supply.
  • Damage to the PCB's interface.
If these signs are present, it is likely due to a PCB failure. If not, further diagnostics are needed to identify the cause of the failure.

Step 2: Find a suitable replacement PCB

To find a compatible replacement PCB, match specific identifiers on the original PCB:

  • For WD, Seagate, Samsung, Toshiba, and Fujitsu drives: match the "PCB Number";
  • For Maxtor and Hitachi 3.5" drives: match the number of the "Main Controller Chip";
  • For Hitachi 2.5" drives: match the number of the "White Label";
These numbers are typically located on the front or back of the PCB. Refer to our article: hard drive pcb replacement guide.

Step 3: Remove the damaged PCB

  • Power off and unplug the hard drive:
    Ensure the hard drive is powered off and unplugged from any power sources or computer connections.
  • Remove the screws:
    Use the T6 or T8 screwdriver to remove the screws holding the PCB to the hard drive. Keep the screws in a safe place as you'll need them later.
  • Detach the PCB:
    Carefully detach the PCB from the hard drive. Be gentle to avoid damaging any connectors or components.

Step 4: Transfer the BIOS chip (if required)

In many cases, the BIOS chip (an 8-pin chip) from the original PCB needs to be transferred to the new PCB for proper functionality.

  • Identify the BIOS chip:
    Locate the BIOS chip on the original PCB. It is usually marked, and detailed guides can help you identify it.
  • Heat the BIOS chip:
    Use a hot air gun to gently heat the solder holding the BIOS chip in place. Be careful not to overheat and damage the chip.
  • Remove the BIOS chip:
    Using tweezers, carefully lift the BIOS chip from the original PCB once the solder has melted.
  • Solder the BIOS chip onto the new PCB:
    Align the BIOS chip correctly on the new PCB and solder it in place. Ensure the connections are secure and the chip is properly seated.

Tips: BIOS chip transfer process is not complicated and can be guided by our video: "hard drive PCB BIOS chip transfer".

The BIOS chip is an 8-pin chip, most of the PCB have only one BIOS chip, but some may have two or three. All BIOS chips need to be transferred. The chip is easily identifiable on the PCB, and we will mark it on the PCB you ordered, so you don't need to worry.

BIOS chip transfer

You can also find a local repair shop, such as a mobile phone repair, home appliance repair, or electronic repair service to replace the BIOS chip. The cost is usually between $10-20.

Step 5: Install the replacement PCB

  • Align and attach the new PCB:
    Align the new PCB with the connectors on the hard drive and gently press it into place.
  • Secure the PCB:
    Use the screws removed earlier to secure the new PCB to the hard drive.

Step 6: Test the hard drive

  • Reconnect the hard drive:
    Reconnect the hard drive to the power supply and computer.
  • Power On and check:
    Power on the hard drive and check if it spins up and is recognized by the computer. Ensure the drive's capacity is displayed correctly, and data is accessible.

Conclusion

By following these steps, hard drive pcb replacement service provider can successfully replace a hard drive's PCB and restore functionality.

Gather necessary tools

Before starting the replacement, gather the following tools:

  • T6 and T8 screwdrivers (for removing the PCB).
  • A hot air gun station (for transferring the BIOS chip, if necessary).

Tips: These tools can be ordered on our shop in this category: HDD repair tools