Hard Drive Repairing

H.D.D

(Hard Disk Drive)

COMPONENTS OF Hard Disk

1. IC’S
2. Chips
3. MICRO-RESISTANCE
4. MICRO-CAPACITOR
5. PACKAGE
6. FUSE
7. MICRO-COIL

Problems of Hard Disk

1. Dead
2. Not Detect
3. Not Boot But all Proper Work
4. Virus Definition
5. High Level Format
6. Low Level Format

1. Dead

1. Check the power connector & resold it
2. Check the fuse around the power connector
3. Check hot & burn SMD chip
4. Replace the controller card same make & model

2. Not Detect

1. Check the data cable
2. Check the jumper setting
3. Check the dry sold of PCB connector & resold it
4. Check the fuse around the interface connector 
5. Check the 330 Ohm’s micro resistance around the interface connector
6. Check all the resistance of whole card
7. Replace the controller card same make & model

3. Not Boot But all Proper Work

1. Check the operating system is file ok working
2. Transfer the system file again with the help of “SYS” command on DOS. For example: A:\>SYS C:
3. Remove the all partition & rebuild the partition & format it
4. Confirm the hard disk zero track is OK or it have a bad sector on zero track

4. Virus Definition

Virus is software which is used to make or create a problem in software & hardware section. It’s automatically copy & saves in your secondary storage media when you are read & copy any type of infected files virus program is bide software program.

Problem 01: System hang, auto restart computer, auto software corrupted

Solve: If data hard disk used antivirus program for checking & removing virus from hard disk

Problem 02: Hard disk show writing & reading error

Solve: Format it by high level format. For example: A:\>format c:

Problem 03: Hard disk is not high level format

Solve: Remove the partition & turn off computer after few seconds turn on the system then rebuild the partition & format it

Problem 04: Partition is removed but after restar it is present as same condition before remove

Solve: Used disk manager software for remove & make partition

Problem 05: No software is work for making & removes partition

Solve: Used low level format

Problem 06: Hard disk show bad sector

Solve: Used low level format

Problem 07: Hard disk show bad sector in zero track

Solve: Used low level format

5. High Level Format

When you make a new partition from FDISK command you must high level format for using the partition without high level format partition show message invalid media type drive (Partition name) when you try to used the partition.When computer automatically go to scan disk every time you start the computer. If start surface scan hard disk required high level format

For Example:

A:\>format c: (Show bad sector)

A:\>format c:/s (Also make disk bootable)

A:\>format c: /Q (no search bad sector)

6. Low Level Format

Rebuild zero track of hard disk. To remove the logical bad sector format & it all type of partition table.