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We've all been there. The computer that used to run so quickly and smoothly now labors to execute simple commands. Over the course of your computer's life, it stores up lots of bytes of data. When it runs out places to store that data, performance begins to suffer. If you want to add an extra hard drive to your computer in order to boost performance, free up space, and create a better experience, it's time to get started.



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    Research your machine. Before we start the process of adding a drive, we need to do a small amount of research inside your machine. The goal of the research is to find out if it will be easy or not to add the new hard drive. We also need to find out what kind of drive you need to buy. You may be able to do this research by reading through your computer's manuals, but it is far easier to simply open the case and look inside.
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    • An external drive connects to your computer through either a USB 2.0 connection or a FireWire connection, so your computer needs to have USB 2.0 or FireWire connectors. Once you buy the drive, all you have to do is connect it and fire up your computer. The drive will come with configuration instructions, but on Windows XP and other modern systems, it will likely be plug-and-play. You can start saving files on your new drive immediately.
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    Find out what type of cable system is used to connect drives to the motherboard. There are two systems in common use: IDE drives (also known as PATA, or Parallel ATA), and SATA (Serial ATA) drives. PATA drives have wide, flat cables or thick cables as wide as your finger, while SATA drives have thin cables about the diameter of a pencil. You will need to know whether to buy an IDE or SATA drive, and you should be able to tell by looking at the cables. Also note that some cables only offer a connector from ONE hard drive to the motherboard, while others have connectors for two or more.
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    Now that you have your new drive, you are ready to install it.
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    Eliminate static electricity.
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    Get grounded. The way to eliminate static electricity is by grounding yourself. There are lots of ways to do this, but probably the easiest way is to wear a grounding bracelet on your wrist. Then you connect the bracelet to something grounded (like a copper pipe or the center screw on a wall outlet's face plate). By connecting yourself to ground, you eliminate the possibility of static shock. You can get a bracelet for a few dollars. An alternative is to touch the power supply whenever you make a "big" motion, like taking off a jacket or getting up and sitting down again. A bracelet is superior in any case.
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    • You want both hard drives to be on the same cable. The two drives on the cable are called "master" and "slave." You want your existing hard drive (which contains the operating system and all of your current data) to be the "master" and the new hard drive to be the "slave." The drive should have instructions on them that tell you how to set the jumpers for master and slave. So read the instructions and set the jumpers. If you are using SATA drives, you do not need to set jumpers for master and slave because each drive gets its own cable. Check out How IDE Controllers Work to learn more about the master and slave configuration. Avoid using a large tool to remove the jumpers, as this can knock the pins out of alignment.
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    Plug in the drive's power connector to the power supply. If it fits, then it's a match. Connect the IDE or SATA cable to the drive.
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    Close the machine, power it up and configure your new drive using the Windows 7 Disk Management Tool (or, in the case of other machines and systems, find out the configuration tool). To do this, click the Start button, open the Control Panel, Switch to Classic View, click on Administrative Tools, click on Computer Management, click on Disk Management.
    • When the formatting is done, you are ready to use your new drive.

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  • If the new Hard disk is Internal type Serial Advanced Technology Attachment (SATA) device then all we need to do is connect the SATA power cable and Data Cable(Red cable) to the hard drive's respective ports and connect the Data cable at SATA or eSATA port on the Motherboard and the power cable to a 4 pin power connector which comes out from Switch Mode Power Supply (SMPS) device.
  • Start the PC, go to CMOS (setup page to BIOS) by pressing F2 in Intel Machines or Press "Delete" in Non-Intel Machines. Still other machines may have other keys that they respond to. Select the old hard disk as higher prior device than the new hard disk. Save settings and exit. Then in side Microsoft Windows Right click on "My Computer" click on "Manage" Click on "Disk Management". We can see an unallocated portion sized nearly the size of the new hard disk. Select that portion and Right Click. Then Select on Create new partition and follow the steps. Always select for Quick Formatting.


  • Be careful when you create partitions. Undoing partitions often require special software that is not only expensive, but requires a format, in which case you would need yet another drive to back up your data to.
  • Very often partitions cannot be undone. In the cases that they can be undone, some sectors of the disks may be corrupted.

Article Info

Categories: Hard Drives

In other languages:

Español: agregar un disco duro adicional a tu computadora, Italiano: Aggiungere un Hard Disk Extra al tuo Computer, Português: Adicionar uma Unidade de Disco Rígido Extra a Seu Computador, Русский: подключить к компьютеру еще один жесткий диск

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