2. Why Install Hardware?
There are several reasons why you may want to install additional
hardware, and vary in their difficulty of installation. All require the cover
of the computer to be removed, and basic precautions taken to prevent
static damage.
Modifying a computer may improve the performance of the computer
depending on the installed components specification. It may also
improve the specification by providing additional ports.
Following are a few examples that show why you need to install a graphics
card, USB 3.0 PCIe card and a Wi-Fi PCI card.
3. Graphics Card
A graphics card is a piece of hardware that controls the video output, which is
normally connected to a monitor or projector. Its specification can effect the
performance of a game depending upon the specification of the card. Variations
may include, graphic processor speed, memory, etc.
A graphics card may be installed to specifically interact with certain software that
is graphic intensive such as CAD-CAM, Photoshop or video games.
There are some risks when installing a graphics card, for example Electrostatic
Discharge (ESD) can be a real hazard if the user is not grounded by using an Anti-
Static wrist strap or mat. You could also damage the card or the motherboard
through incorrect insertion of the card damaging connections. You could also crash
the computer through internal conflicts caused by an incompatible card.
To prevent this the user must ensure that the card is compatible with the
computer and the correct drivers are available for the operating system installed
on the computer.
4. USB 3.0 PCIe Card
A USB 3.0 card provides extra USB ports that may also be faster than existing USB
ports. USB 3.0 has speeds of 5 Gbit/s (625 MB/s), while USB 2.0 has speeds of
480 Mbit/s (effective throughput up to 35 MB/s).
If you have a lot of peripherals connected to your USB, including data intensive
ones including scanners and digital cameras, then you may find that older legacy
USB ports may be running too slowly, or even that you have simply run out of
ports, as most peripherals are now supplied only as USB rather than older serial or
parallel ports.
USB cards are normally very easy to install and do not normally need additional
drivers.
Installation issues are normally limited to physical or static damage , and can be
prevented through the use of antistatic straps and studying the layout before
starting the job.
5. Wi-Fi PCI Card
A computers use is massively extended when it is connected to a LAN or WAN. A
computer may already come with a network port, but most desktop computers do
not normally come with a Wi-Fi card. With the number of computers in a home
increasing, it is becoming more important to network them, however homes rarely
have network cables installed.
One option is to fit a wireless PCI card, often a good option as most broadband
routers also come with wireless functionality.
Installation issues are similar to those of the graphics cards, including static and
incorrect installation. These cards also normally require the correct drivers to be
installed, depending on the operating system.