thanks for watching techwiki click the subscribe button then enable
notifications with the bell icon so you won't miss any future videos wouldn't it
be nice if overclocking your pc were a little more straightforward i mean sure
there are those automatic one-click solutions that can give a quick and
dirty boost to your CPU but if you want to do it yourself
you end up looking at all these confusing options in your UEFI BIOS
instead of just a dial that you can turn to make the pc go faster and one thing
that's easy to get confused by is the base clock and something called the CPU
multiplier which together determine your CPU speed but what the heck are these
things and why is it that they are separated out instead of just having one
field where you punch in your desired CPU frequency it's a great question
because even many enthusiasts are only familiar with overclocking with the
multiplier and i get why the easiest way
to adjust your CPU speed is to ignore everything else and bump up the
multiplier adding voltage when it becomes unstable this approach does have
some drawbacks though unless you're running AMD you will need to buy an
unlocked k or x series processor and on
both the blue and red team you'll need to buy a supported motherboard
furthermore multiplier overclocking doesn't offer very fine control so if
your system is let's say stable at 4.5 gigahertz but then crashes immediately
at 4.6 who's to say that it might not have been
also stable at 4.57 you could be leaving performance on
the table with this method so now let's move on to the base clock so as it turns
out your CPU GPU and RAM are not the
only things inside your system that have a speed rated in megahertz and the base
clock's job is to keep your pc's components in sync with each other so
the base clock is provided by your chipset and you can learn more about
chipsets up here but what you need to know for now is that the chipset
basically serves as a kind of coordinator between your CPU and your
other components and this base clock will tend to be much lower than the
rated speeds of your processor and your memory a common default base clock is
just a hundred megahertz but while that
might be adequate for some hypothetical low speed controller or something it
would be incredibly slow for a modern CPU so that is why your processor uses a
multiplier that allows it to run multiple cycles for every one system
cycle provided by your base clock it's really hard it's like you know this
whole thing so if you have a processor that's rated for 3.5 gigahertz what's happening is
that by default your system is probably running a 100 megahertz base clock with
a 35 times multiplier so this base clock
times multiplier paradigm lets your CPU match up with the rest of your computer
while still allowing it to run at a high speed and even though many cpus actually
have a high tolerance for overclocking even further
many other components such as your pci
express lanes or your SATA controller cannot deal well with running out of
spec that means that adjusting your base clock by more than a tiny amount like a
couple percent can often cause stability issues because it connects to so many
different components and instability in just one of them can bring down your
system fun fact in many cases base clock
overclocking can lead to much worse types of instability where instead of a
blue screen you end up corrupting your os or even losing a bunch of data so
with that in mind then what's the point of being able to change the base clock
at all well some cpus and motherboards
are more tolerant of base clock adjustments than others and some
processors even support what are called straps these are base clock values
significantly above the default that might be stable enough and can be useful
not just for boosting your CPU's speed but also that of your memory and
sometimes your GPU while the speed of other components will remain unaffected
so you may want to look up what straps your particular platform can support
and even if you don't end up using a strap that's much higher than the default speed adjusting the base clock
can still be useful if you just want to squeeze every last megahertz out of your
hardware and hit a clock speed that's in between two multiplier settings it
really depends on what parts you specifically have so
don't be afraid of some trial and error that is as long as there's no important
data on your machine just remember to keep your expectations and possibly your
CPU speeds reasonable
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