2, used water-cooled people to answer you. Advantages: liquid cooling specific heat capacity, belonging to the compression of heat dissipation, usually full load than the Internet is only 10 degrees higher than the cold days off the heat exchanger exhaust fan are no problem, as long as the liquid flow can dissipate the heat. Disadvantage: In case of liquid leakage, the death of the miserable (had thus reimbursed a piece of 1699 asus.
3, IGBT water-cooled board? That should be a high-power devices with a radiator, you can find the West River Radiator Factory, Sichuan, an aluminum radiator manufacturer, quite good, you can go to see, compare.
4, to find a product general entity store is quite small, you go to the local after-sales will absolutely black you have no discussion (tell you what manufacturers ship over, how how), in fact, your own Taobao search you correspond to the model of the thermal module can be (after-sales is also the operation of this way); this thing is generally a few tens of dollars.
5, Thermaltake (Tt) as a world-renowned system cooling solutions provider. Over the years in the field of heat sinks to maintain close cooperation with Intel and AMD. In the field of graphics card cooling, Thermaltake (Tt) achievements are also outstanding, for nVIDIA and ATI's highest-end graphics card customized professional graphics card cooler, repeatedly obtained official certification.