Need information about the Watercooling

[Mei-Xiu]

I am not having any knowledge about the watercooling, which is very important as far as heating problem of CPU is concerned. So I thought that you guys must have done many R and D in it. So please provide some detailed information about the watercooling. Also don't forget to discuss about the principle and implementation of Watercooling along with the types and components of a system Watercooling.

[Myron]

The principle and implementation of Watercooling The water cooling is a cooling technique with water as in automobiles. Water in fact possesses qualities of thermal conduction to the air much higher (20 times), allowing it to remove the heat generated by your CPU more efficiently than air. The water cooling is very efficient and allows for superior cooling to aircooling. The overclockers adopt this technique for their processors overclocked frequencies and voltages.

[Zane]

Two types of system exist: LDPC and HDPC. In CPG, the focus is on a high throughput and rapid movement, so that HDPC is put more on a slow shift, the water is heated and cooled for longer, thus improving trade. Both offer good solutions and are equivalent.

• LDPC systems require high end pumps (1200 l / h), large diameter pipes (12 mm), plenty of fluids, so a large tank and adapted waterblock.
• HDPC systems are smaller and require less liquid pipes of smaller diameter (8-10 mm maximum) and low-flow pumps (300-600 l / h maximum) and waterblock with microstructure.

[Aiden]

A watercooling system is composed of several elements :

• the waterblock: part that is attached to the processor fitted with a water inlet and outlet. Cold water is thrown into the waterblock, recovers the heat running through a maze (maze) or microstructures, and is then removed;
• plumbing: pipes used to transport water from the pump to the waterblock, and then they exchange system to heat and are equipped with fittings to attach to these different elements;
• pump: used to create the flow of fluid in the system;
• Interchange: responsible for cooling the fluid. In the form of very large radiator or a housing with a fan;
• tank: the water containing in excess of the system.

Watercooling solutions do not rhyme with any silence, even if the fans disappear inside the box. The need to pump the flow of water in the pipes of noise and the cooling fluid with one or more fans.

[Willard21]

Most manufacturers provide complete kits containing all the necessary equipment already installed and the installation and easier. They provide a first approach to address easily watercooling. The liquid flowing through the water cooling circuit has a high propensity to store heat that collects in the CPU waterblock and restore it in the radiator where it will be dispersed by aircooling. The liquid coolant is demineralized water which an additive preventing the proliferation of algae and various microorganisms that could eventually clog pipes and microstructures waterblock. It is non-conductive fluid limiting the risks of short-circuit in case of leakage.

[Fabian]

But do not expect the performance of a system or custom external watercooling. For the best, the performance is obtained at low tenors of cooling air. On some few models, there are a few more: change by another fan at higher bandwidth, or CPU waterblock, achieves higher performance really. They come in different forms, often quite compact. Thus, there are systems in place to fixing the fan back (in food) or size 5 "1 / 4 occupying one or two locations normally devolved to CD / DVD systems to fix inside the box or completely separate blocks, outside in a cage or even in the form of a tower or an external heatsink (fan less) and large (several tens of centimeters).

[RoninBlade]

A problem can sometimes redox occur when the water system is in contact with dissimilar metals such as copper waterblock and aluminum radiator. The aluminum will gradually break away from the radiator and deposited on the copper waterblock could block the microstructures or even drill the radiator! It thus makes your system unusable. Several solutions limit or prevent this kind of problem:

• use the same metal on the entire system, thus eliminating the redox;
• add coolant (a ratio of 1 / 3) in the circuit, which greatly limits the phenomenon of redox;
• achieve complete emptying of the circuit at regular intervals and replace all the fluid system by new fluid. For fans tuning, color additives or UV-reactive can be mixed with the liquid.

[deoWo]

You should also know about the Bits. They are the basis of the tightness of a circuit. It is, in most cases at their level that will show the leak. End caps are used to connect hoses to the water block, tank, pump ... The size of the thread or the party to connect check out is to fit on a waterblock specific example. The diameter of the other end must match that of the pipe where it fits. The bits are the standard Plug and Cool or fitted with a cannula. In any case, the pipe is placed in strength in the tip. Take care to achieve a perfectly clean cut and straight pipe, especially for the cannulas in order to avoid tearing and leakage. The size is specified in inches ( 1 inch = 2.54 cm), a size of 1 / 2 corresponds to a diameter of 12 mm, 3 / 8 to 10 mm.

[CoModO]

The radiator is responsible for cooling the coolant. For this, the liquid flows in heat pipes and transmits its calories (heat) to the fins that dissipate heat. It is often compact, assisted in his task by one or more fans. Some are completely passive and in the form of a tower or a panel of several tens of centimeters powered by natural convection, where their large size to be effective.

[Dammit]

Tank and thermal inertia contains the excess liquid from the system, allows to add (to compensate for evaporation) or draining the system. Equipped with a temperature sensor, it monitors the temperature of the water in the system. A large tank has little impact on system performance, but acts on the thermal inertia of the whole. The thermal inertia is the time it takes for the system to achieve this balance. This time is necessarily longer if we have 3 liters instead of 200 ml of liquid.

[SANEET]

Consider a system with 3 liters of fluid. At system startup, the water is, for example, at 20 ° C (room temperature). At the beginning of system operation, the cold liquid will recover a lot of heat in the CPU waterblock and mount to 60 ° C (40 ° C differential). The liquid is then sent to the radiator that will disperse some of its heat. The water emerges from the radiator, for example, at 30 ° C. This water is then reinjected into the circuit to cool the processor, then back to 60 ° C (30 ° C differential), and already the system is less efficient. The liquid will once again be cooled by the radiator, which also warms up. It will lower the temperature a little less than before while he warms himself. The water emerges at 35 ° C (differential of 25 ° C). The cycle repeats until reaching an equilibrium point where the water system is divided into two paths at different temperatures. For example, the part that cools to 40 ° C and the part to cool to 60 ° C. The heater wicks always the same amount of heat.

[Rasdasa]

The same manufacturers of pumps for aquarium manufacture those for water cooling systems. What characterizes the pumps is their flow in liters per hour (l / h). The low-end models are in the 300 l / h and can jump to over 2000 l / h. An average pump debit 600-700 l / h and can operate on systems and HDPC LDPC with 2 or 3 components (processor, graphics card and chipset). The CPG requires high volume pumps, but 1200 l / h seems a maximum, and beyond the excess flow can not be more cool.

[SergioSantos]

In CPG, the pumps used may have very large flows, however, they may force on systems HDPC waterblock to slowing the flow. Some pumps are supplied with 220V, 12V others on the power computer. The advantage of systems that plugs into the PC power is that they turn on and off automatically with your computer, then we should think of switching on the mains system before lighting the PC and stop once the PC is off. The silence of operation is a detail not overlooked. Moreover, many manufacturers are integrating the tank in which the pump is immersed. Thus insulated from the outside by the mass of liquid, noise is virtually nil.

[Simond]

Key Feature of the system, it binds to the processor instead of using a heat sink attachment system, which must also verify the compatibility given the diversity of existing sockets. It is a massive copper directly in contact with the processor. Supplied with two tips: one for the arrival of cold water, and the other to drain the water warmed by the body of the waterblock.

[Pugsly]

It may be noted that there are also graphics cards, chipsets, but also hard drives or memory array to build a complete cooling. Its function is to receive heat from the processor and transmitted to the liquid. Like the radiator, it is found in copper, some silver or gold plated. The internal architecture of the waterblock is particularly studied and is often the cause of its effectiveness. There are two types of waterblock LPDC (low pressure drop) with a maze (maze simple) and HPDC (high pressure drop) with complex microstructures.