Global WIN Silent Stream Review - The Motor and Other Notes
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These are some specs about the motor (water pump) located on top of the water block. Obviously this is not the same strength water pump as in "real" water cooling systems, where those range anywhere between 400-1300 L/hr. The motor requires very little power to run, since it only requires a 3 pin motherboard connector. Since the distance that water has to travel for one full loop through the Silent Stream is not much, it's reasonable that the water flow rate be on the low end. The Silent Stream is still able to cycle its liquid over 10.6 times per minute.
On top of the block/motor is a green LED, which is why there are two 3 pin connections which GlobalWIN has kindly combined into one. Both the pump and the radiator fan speed can be monitored if motherboard connections are used as there are RPM signal outputs.
The Silent Stream comes pre-filled with a mix of 70% water and 30% antifreeze. The reason for the antifreeze is because otherwise, the water in the loop would likely freeze during shipping. In the picture below, you can see that there is still air in the loop, which is NOT good. There are two different ways of mounting the Silent Stream, quick and pro. The former method leaves the radiator inside the case while the latter puts it outside. Additionally, the pro method requires you to detach the tubes and drain the Silent Stream of its pre-filled fluid, which although is an extra step, would remedy the air bubbles/antifreeze problem. Unfortunately, users new to water cooling who want to install the Silent Stream as is, will have to live with both 30% antifreeze and air in the loop equating to decreased cooling capability. On a side note, the water tubes are made of silicone heat cure elastomer, and is fireproof and extremely ductile.
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