Overclocking Tutorial (at your risk n cost0
Overclocking
takes on 3 forms:
First,
is the casual overclocking, easy, and anyone can do it.
Second,
is the right way to overclock, taking into account, everything.
Third,
if you want serious power, your gonna need to be savy to what does what.
The
casual overclocker gains about 5% increase, and really doesn't see any benefit
from this, whilst it makes you feel good, no serious damage can be made, by
upping the FSB a little, or changing your multiplier, only thing is, you want
more.
The
correct way to overclock, is to start looking at your system, check the
motherboard specs, PSU, amount of harddrives, CD ROMS etc. (high end systems,
including the lastest graphic cards will need serious power).
Lets
take a base system like my old system setup:
AMD
XP1700+ ( Thoroughbred JIUHB DLT3C )
Core
Voltage = 1.50v
Maximum
Die Temp = 90c
FSB =
266Mhz
(factory
unlocked)
Jetway
K266B KT266 chipset
DDR +
SDR RAM (not together)
No
onboard RAID
DDR RAM
= Dane Elec PC2700 DDR (333Mhz)
Not
registered
2 Hard
drvies
1 CD
Writer & 1 DVD ROM drive
2 LAN
cards
1 PCI
soundcard
(onboard
sound turned off).
Now,
lets look at what they can do:
The
Thoroughbred is still the top processor for overclocking, Thunderbirds are just
not upto it, even though they are capable of some really decent speeds, same as
the Palamino, not to mention the Barton's (these are not what they have been
made up to be).
(for the
purpose of space, I'll not go into unlocking your CPU)
As you can
see, my Thoroughbred has a core voltage of 1.5v, and as my motherboard is
capable of giving my processor anything upto 1.85v, there is score for more
there.
The FSB
on my motherboard is capable of a max of 200Mhz (this is the magic number).
Die
temps to a max of 90c is good (never been near it, yet!).
Now, to
work out your Mhz on your system, or to check your multiplier or FSB, there is
a little calculation you'll need to remember, and it's easy:
Your Mhz
is worked out by your multiplier timed your FSB.
example:
CODE
133x10 =
1.33Ghz
Of
course you can devide your Mhz with your known FSB to give you your multiplier
etc.
Now for
easy, I have the results of my previous unlocking tests handy, so I'll use
them, and not the current speeds etc.
Standard
Multiplier = 11.0
Overclocked
Multiplier = 12.0
Standard
Voltage = 1.50v
Overclocked
Voltage = 1.52v
Standard
FSB = 133Mhz
Overclocked
FSB = 136Mhz
Standard
Speed = 1467Mhz
Overclocked
Speed = 1630Mhz
Standard
Temps = CPU = 37c SYSTEM = 32c (idle) CPU = 44c SYSTEM = 36c (under load)
Overclocked
Temps = CPU = 34c SYSTEM = 29c (idle) CPU 40c SYSTEM 34c (under load)
As you
can see, the system is cooler when overclocked, this is due to having the
correct cooling setup, and temps for it when it was standard, was standard
cooling setup.
Basically,
all I have done, is raised the FSB by 3mhz, the voltage by 0.02v and the
multiplier by 1.0, this has given me a 163Mhz increase without over strssing my
system, but, here is where it gets teadious:
To
achieve this, it took me about a week, and this is how I did it:
I
started by lowering the multiplier to 5.0, from there I raised the FSB to its
max (at the time, have latest BIOS update for mobo, allowing 200Mhz FSB),
166Mhz, this is the correct way of overclocking.
From
there, I started to raise the multiplier one by one, getting it back upto the
standard multiplier or higher, checking the stability of the system each time.
(currently
I am way passed the 136Mhz FSB, as I am running PC2700 DDR).
One
thing to look at though, overclocking using the FSB WILL (unless your system
allows you to specify it) mess with your PCI & RAM speeds.
Even
raising it by 3Mhz can make your PCI cards to not work, and your RAM to get
confused and crash your system.
Now your
thinking to yourself 'I can do that' and yes you can, anyone can, but.......
It takes
TIME, I can't stress that enough, if your going to try this, then you'll need
to run your system for at least 6 hours between changing your multiplier, and
as you can imagine, this can take a long time to do.
For your
information, I used Hot CPU Tester, SETI & played Vietcong for testing
purposes.
Now, for
the hard part:
As most
experienced overclockers will tell you, heat is your enemy, killing heat is
your number 1 aim, don't worry about your speed at first, a 50Mhz increasde
isn't gonna make your 3D Mark scream through the roof, actually, you'll
probably not even get any better than what you did before.
There
are several ways of dispersing heat, and they are:
Aircooling
Pro's:
Cheap, effective at lower speeds.
Con's:
Noisey, dust collectors, need maintanance.
Watercooling:
Pro's:
Can lower your CPU by about 10c easily.
Con's:
It has water in it, expensive, hard for some to understand.
Pelter:
Pro's:
With watercooling, it's the daddy
Con's:
ONLY EXPERIENCED PEOPLE NEED TO APPLY, very complicated, power hungry, NOT for
the faint hearted. Stupidly expensive.
Aircooling:
Upgrading
your CPU fan is the first step, there are several companies that offer
aftermarket fans, which are better than the OEM fans are 2 a penny in todays
world, but it's NOT just about your CPU fan, your system needs to breath, you
need to get rid of 'hot spots' within your system.
Watercooling:
Its
easier than most make out, its a good thing, kit prices can be got from about
£120 ($200 US), just make sure they are upgradable, as you might want to add, a
Northbridge water block & a GPU water block.
Modern
day kits & parts are idiot proof, and will not leak, unless you act like
Noah.
Pelter:
Pelter
cooling is DANGEROUS, minly for your system, fitting it incorrectly, and you
could end up with not only a baked CPU but a system that will end up as a very
expensive paperweight.
Ask your
local overclocking expert for more info.
Basically,
if you can get hold of a decent Thoroughbred cored XP, your in luck (just like
me), if its unlocked, then your in business, obviously, its not just down to
your CPU, your motherboard and RAM will denote whether you can overclock big
style or not.
I'd
advise ANYONE thinking of overclocking, to research into it more, weigh up the
odds on what they want or need, if your on a buget, DON'T attempt it, things
can and do go wrong.
Most of
the time, its not about 'mines faster than yours' or massive speed increases,
its done by most, cause it can be. 90% of the time, you'd be better off buying
a new CPU (as prices are so low), but if you get the urge, then a new world
awaits you
great
tutorial. this should help the OC noobs. If I can add something like you said
know your specs of the mobo....and if you are serious about OC'ing dont go and
get some generic NO-NAME ram and some ghetto mobo. to get the best stability go
with ASUS and ABIT for the mobo and Crucial, Kingston, mushkin for the ram. A
great forum for OC'ing is amdmb.com.
Indeed,
if you are serious about your overclocking, its advised you only use serious
brand names.
Generic
parts are always a lower spec, and can easily destroy themselves with even a
little stress aimed towards them.
Memory
advice, use the folloing:
Kingston
(added because of reviews, personally, I'm not sure about them).
Crucial
(for Dual Channel DDR ONLY)
OCZ
Mushkin
Corsair
PNY (for
EEC rated)
Samsung
Geil (my
choice, when I can afford it)
Motherbord
advice, use the following:
Asus
A7N8X Deluxe nForce2
Asus
A7N8X-VM nForce2
Asus
A7N8X-X nForce2
Abit
KD7-S KT400
Abit KV7
KT600
Abit NF7
v2.0 nForce2
Abit
NF7-S v2.0 nForce2
MSI K7N2
Delta-L Nforce2
MSI KT6
Delta-LSR KT600
Epox
8RDA+ nForce2
Epox
8RGA+ nForce2
Any
nForce2 motherboard would be best, they allow more score for overclocking your
system.
_________________
0 Comments