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Overclocking is the act of
increasing the speed of certain components in a computer other than that
specified by the manufacturer. It mainly refers to making your CPU
run at a faster rate although it could also refer to making your
graphics card or other peripherals. For example if you have a
300MHz PII CPU, you could probably overclock it easily to 350 or even
400MHz. The latest P4 processors also appear to be overclockable
through the FSB (front side bus) even though they are advertised as
So, now that you now what
overclocking is, let's see how you can actually overclock your CPU.
You can do this using any of the following 3 methods: Through your BIOS,
Changing the multiplier settings, changing the Bus speed!
some BIOS's you are given the option to alter your CPU speed.
Using this method, you won't even have to open your computer case.
When you first boot your PC enter your BIOS (usually by pressing Del,
F1, or F10) and start looking for any option that allows you to change
your CPU speed. If you do find it, then it's as simple as changing
the current number to a higher value.
When increased, it makes the whole system run faster and not only the
CPU. Most PC's have a speed of 66MHz or 100MHz. Mainly, it
defines the speed that your motherboard and other components run at.
To change your bus speed appropriately, see the table below.
Multipliers are located on your motherboard and come in the forms x1,
x1.5, x2, x2.5, etc... When the Bus speed is multiplied by any one
of these numbers, it results in the final CPU speed. For example,
if you have a bus speed of 100 and a multiplier of x4, your CPU speed is
400MHz. Clear? The table below shows how you can change your bus
speed/multiplier settings according to your specific CPU.
The best way to overclock your PC is to alter the bus speed and
multiplier settings. To do that, look at the table below and you
should straight away realize how beautifully it has been put together.
For example, if you have a Pentium 166MHz CPU (which is set up on a
66MHz bus speed and a multiplier setting of x2.5) you can see straight
away that you only have 1 choice and that is to increase the multiplier
setting tox3 to get a net speed of 200MHz!
Other processes to try
You must understand that to overclock you MUST buy
a heatsink or an additional fan because your motherboard will be
producing more heat. Ask your local hardware store for help with fitting
these. Also, make sure you download a benchmarking utility to know how
much speed you've gained, check out SiSoft Sandra 98 from the Speed
Now that you know what you'll need and what your
options are, let's take a look at how you can actually speed up your PC:
(1) Take off your PC's lid and play around with
your Motherboard's jumpers. With your Motherboard's manual in hand, you
can see how you should fit your jumpers for each CPU speed, simply fit
the jumpers for a faster CPU by altering the bus and multiplier setting
jumpers. (see table below)
(2) Software. I would recommend you use software
since it's easier. Go to h-oda.com
and download a program called SoftFSB. Follow the instructions and
then overclock your CPU one step at a time while rebooting to check and
see if you've been successful.
(4) To prevent overheating your CPU, download and
try CPUidle from cpuidle.de
and Waterfall Pro from rocketdownload.com.
Alternatively, you can buy heatsinks/fans for your CPU.
help you choose the speed you want to overclock your machine to, consult
this table. Bus Speed in MHz is listed down the left and multiplier
settings across the top. Figures in bold represent the most
within this table created by PC Answers Magazine
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