Overclocking
nForce 2 and 3
Cooling is evertything 
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Processor CPU and Mainbord
cooling ![[Cooling]](../words/Cooling.jpg)
What now remains is the CPU cooling and this is important when overclocking.
A decent Processor CPU Cooler should be installed, that means no silent fan and no
pure alumimium cooling body.
If you still have an AMD Boxed Cooler installed on the CPU, then its best to either
change it, or leave any overclocking alone.
A decent AMD processor cooler is either an aluminium/copper combination or
made from pure copper. Some coolers possess additionaly so called ''Heatpipes''
which assist with the cooling. Heatpipes are however not a prerequsite.
CPU Coolers with temperature regulators are not good. The temperature regulator
usually reacts late to warmth meaning that the CPU runs unnecessarily too warm.
Why is a good CPU Cooling needed and why is it so important ? 
- In the main when overclocking CPU power and heat loss will increase.
- A higher CPU timing and vcore voltage increase further this process.
- Overclocking will as a rule shortern the processor life. This process can only be
- checked by installing a good system cooling.
- More heat is produced by increasing the core voltage. The warmer the prossessor
is the more likely it is to run unstable, because the electrical resistance in the
core-prossessor increases.
Interesting link to this subject: calculation of the CPU power loss
CPU Cooler Paste or Pad ?
Who should use overclocking prefer paste. Thermally this has one better warm
conductivity.
A qualitatively higher containing silver leading paste, as for example Titanium Silver
Grease or Arctic Silver brings other advantages. 
The use of a CPU copper spacer is rather doubtful. If this is not fitting on the basis of
tolerance 100%, it can harmfully have an effect which hinder heat transfer and cause
even short circuits.
In tests of experience a copper spacer brought rarely cooling advantages.
Click for bigger size picture
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Optimal Airflow in
one PC Housing Tower
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All mainbaords nForce2 and 3 do not offer the option VDD Voltage.
Who has sceduled to increase the Mainboard FSB more than 400 and would like to help
hisself by use of the option VDD, the Mainboard Northbridge should pay attention to
good cooling.
A good cooling is an active cooling of the nForce chip sentence in supplement with a
reasonable PC housing ventilation.
A passive nForce chip sentence cooling is from my sight for the overclocking of the
Mainboard FSB more than 400 completely unsuitable and is to be exchanged.
Who would like to do extremely hight overclocking still should try to improve even the
active mainboard chip cooling.
Here supplementary own building is a measure. However, the specialized computer
trade for PC cooling also offers good mainbaord chip coolings.
Dependence like with a CPU, also here is considered:
More heat is produced by the rise of the tension VDD. The warmer the mainboard chip
sentence is more likely the it becomes that it does not run any more solidly there the
electric restate rises.
As cooler the mainboard chip is, the better the ability for overclocking.
Examples of mainboard chip modified coolings by me:
| An active
cooler on a Zalman chip sets cooler on mine nForce2
EP-8RDA3+ |
 |
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A good passive cooler which was
supplemented with a fan.
With chipset
overclocking the temperature rises it only very slowly
and
reaches even with FSB 232 with 2 volts only 45 ° |
- To the enlargement, please, click on the picture -
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| An active
Revoltec cooler on one older nForce2 EP-8RDA+ |
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Customary an active
graphic cards cooler
here on nForce2 Northbidge
was set up.
The cool performances were very well
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A mod. aktive cooler
on mine nForce3 mainbaord |
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| An existing active cooler which was
supplemented with 4 copper coolers |
Additional Mainbaord chip cooling:
On nForce2 Southbridge should never neglect one. As a rule work-sided is set up here
already a passive cooler. Should it not be the case, catch up. Of every claimed
warmth delivering hardware part is grateful about cooling.
Also gratefully for cooling the audio is a chip on both mainboard types.
It has to perform partly quite a lot.
Overclocked systems often run on some elevated temperature in the PC housing.
The audio chip is often not very good much vorteilshaft placed and receives no much
air cooling. A smaller passive chip cooler for it does sense.
Who wants out with the clock of Front Side Bus (FSB) or CPU Reference clock far
should still take care of the cooling of tension-supplying elements of the mainboard.
Here was to be named: Mosfets and the PWN Controller chip.
The controller PWN steers CPU v/core and Mainboard chipset volt of tension.
From approximately one FSB of 250 and more this chip reaches higher temperatures.
Examples of such coolings:
| On the left a PWN passive cooling, on the
right Mosfets passive cooling |
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- To the enlargement, please
click on the pictures -
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Subject Water cooling:
Who has one, congratulations ! 
However, do not forget to cool with an add. case
fan, if possibly on height CPU behind in the housing.
Mainboard electrolytic capacitors, Mosfets and condensers also want cooling 
If you intend to overclock the Memory you should as well as having water cooling,
have a housing ventilator at the front. If the Memory is running too hot it will kill off
any attempt at overclocking.
CPU Idle activate by cooling patch on nForce2.
I bumped into my way through forums on one nForce2 cooling patch, with the
inconspicuous name "C2TCV21".
By the installation DOS window opens and probably something is changed only in the
Registry for the CPU idle procedure.
Negative effects for the system, I could not note.
