| INTRODUCTION When purchasing a hard disk drive,
it is important to understand and verify the hard disk drive is
suitable for your uses and has or does not have the options you
may or may not need. Unfortunately, with hard disk drive
technologies changing every day, it is can be sometimes confusing
and frustrating when looking to purchase a hard disk drive.
INTERFACE
When looking to purchase a hard
disk drive the first and foremost important consideration is the
Interface the hard disk drive uses to communicate with the
computer. Below is a listing of each of the available
interfaces with information how thy may or may not apply to your
computer.
- IDE/ATAPI/ATA
One of the more commonly found hard disk drives and used
with IBM compatible computers, IDE is generally an easy to
install and customize interface. Each IBM computer has the
availability for a maximum of four IDE devices, these devices
can range from Hard Disk drives to CD-ROM drives. If considering
purchasing an IDE/ATAPI/ATA hard disk drive, verify that there are
available locations for the drive to be connected to.- SCSI
Another commonly used interface, SCSI devices are found in
Apple computers as well as some IBM computers. The SCSI
interface is generally a faster solution when compared to IDE/ATAPI;
however, in some cases, they can be more difficult to install. To
install a SCSI hard disk drive you must have a SCSI card and an
available connection on the SCSI cable connecting to the SCSI
card. It is important to remember if you have a Proprietary SCSI
card, such as a SCSI card included with the Iomega Jaz drive,
this SCSI card may not always allow your hard disk drive to
work.
- External (USB / Fire wire /
Parallel)
Several
external solutions are also available; these include but are not
limited to USB Hard disk drive, Fire wire Hard disk drive and
Parallel Hard disk drive. When considering an external hard disk
drive, it is important to look at the speed difference for
transferring data to and from the hard disk drive. In addition,
for these external drives to function properly, you must also
have the available connection for the drive to be connected to.
SPEED
In addition to the interface, it is
also important to look at the transfer rates of the hard disk
drive; long transfer rates can considerably slow down your
computer when transferring larger files. When looking at the hard
disk drive, look for specifications listing the RPM (Rotations Per
Minute). An example of this would be a speed of 7,200 RPM.
OTHER CONSIDERATIONS
Below is a listing of some other
important considerations to look at when purchasing a computer
hard disk drive:
Warranty
How long is the warranty and what does it cover.
Support
Is the technical support number a free number is it open 24
hours, 7 days a week.
Included Components
Verify that the hard disk drive that you are purchasing
comes with the needed components to install the drive. Generally,
hard disk drives included from the manufacturer will include an IDE
/ ATA/66-100 Cable, standard drive rails, instructions and
diskette for installation.
Internal / External Transfer
rates The Internal
transfer rate is the rate the hard disk drive can take
the data from the platter to the internal cache or read buffer.
The External Transfer rate is the rate the hard disk
drive can then take the data in the internal cache or read
buffer to the computer memory.
S.M.A.R.T.
S.M.A.R.T. is a new technology used to help warn the
computer user of possible problems with the hard disk drive.
ATA, ATA/33, ATA/66, ATA/100
Another new and sometimes confusing interface is the ATA
interface. Developed by Quantum in 1996, the Ultra ATA/33
interface allowed for computers to transfer up to 33 MB per
second; later in 1998 this standard was upgraded to the ATA/66
standard with the availability of transferring up to 66 MB per
second.
When purchasing an ATA/66 drive,
the computer must support ATA66 as well as have an ATA/66 cable
in order to support the transfer rate of 66 MB per second. If
the computer does not have this cable, the drive will
automatically be decreased to a transfer rate of 33 MB per
second.
PRICE RANGE
The price range can vary depending
upon what type of interface the drive uses (IDE / SCSI / USB), you
should expect to pay more for SCSI drives as they are generally
released before IDE drives and are a faster technology. In
addition to the interface, the faster the RPM on the drive is, the
more you should also expect to pay.
| <5400 RPM IDE |
Expect to pay
$100.00 to $300.00* |
| >7200 RPM IDE |
Expect to pay
$300.00 and higher*. |
| SCSI DRIVE |
Expect to pay
$300.00 and higher*.
In addition requires a SCSI card if one is not already
present. |
*All prices are estimated prices and are not quotes.
When the hard drive is introduced, the price will generally be
higher. All prices are US Currency, prices may vary in different
countries. All prices are based on new products and not those
purchased refurbished or used.
READY TO
PURCHASE
Once you have reviewed the
appropriate information and believe that you are ready to make a
purchase of a new hard disk drive, verify that the source you are
purchasing the hard disk drive is a reputable source and you have
reviewed our section on what to look out for when purchasing over
the Internet.
Computer Hope is ready to setup
and help you with issues you may encounter during the purchase and
installation of your hard disk drive, regardless if you purchase
through us or another vendor.
To help support Computer Hope you
can purchase directly through our well-known associate, Amazon.
Click the below browse button to begin browsing through the hard
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HARD
DISK DRIVE INSTALLATION
Additional help and information about installing a
computer hard disk drive and other computer hardware can be found
through our Installation section.
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