Swiftech MCR X20 DRIVE REV3 - Manual (Page 5)

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Information subject to change without notice – Page 5
b/ Operating precautions:
The MCP35X pump should never be run dry, even for a quick test . You should always prime the pump by filling-up the MCR Drive radiator with
fluid before you start operating it (see warranty note *).
Use of coloring die or fluorescent additives containing particulate fillers will cause excessive wear to the pump’s impeller bearing (see warranty
note **).
c/ Specifications:
Motor type Electronically commutated, brushless DC, spherical motor
Nominal voltage 12 V DC
Operating voltage range 9 to 13.4 VDC
Max. nominal power (@12 V) 18 W
Max. nominal current (@12 V) 1.5 A
Max. nominal head (@12 V) 14.7 ft (4.4m)
Max nominal discharge (@12 V) Max nominal discharge (@12 V)
Maximum pressure 22 PSI (1.5 BAR)
Temperature range Up to 140°F (60°C)
Electrical power connector Molex 4 pin
PWM + RPM signals 4-pin connector
ROHS Compliant
Port thread standard G1/4 ”
MTBF (Mean Time Between Failures) 50,000 Hours
WARRANTY: This product is guaranteed for a period of 24 months from date of purchase for defects in material, and workmanship. Guarantee
consists of replacing defective parts with new or reconditioned parts. Guarantee is considered void in case of improper use (*)(**), handling or
negligence on the part of user. Original invoice showing date and place of purchase is required for exercise of the warranty.
(*) WARNING: DO NOT
ATTEMPT TO RUN THIS PUMP DRY. THIS WILL CAUSE IMMEDIATE AND PERMANENT DAMAGE TO THE PUMP. (**) EXCESSIVE WEAR DUE TO
INNAPROPRIATE FLUIDS.
DISCLAIMER: Swiftech assumes no liability whatsoever, expressed or implied, for the use of this product, and more specifically for any, and all
damages caused by the use of this product to any other devices in a personal computer, whether due to product failure, leak, electrical shorts, and
or electro-magnetic emissions.
5. Flow Parallelization: "How to create a mixed serial+parallel configuration in complex loops for dramatically improved flow
performance" using the MCR Drive Rev3 series radiators and the Apogee HD.
Among the most obvious benefits of harnessing the power of water-cooling is the ability to daisy-chain multiple devices for the CPU, Graphics,
Chipset, and even memory.
Up until now, the most common way to do this has been to connect the waterblocks in series. In this type of configuration however, the pressure
drop generated by each one of the devices cumulates, which substantially reduces the overall flow rate in the loop; and as the flow rate diminishes,
so does the thermal performance of the system. Many extreme users have been resorting to adding a second pump to their system to mitigate this
effect.
There is another strategy to connect multiple water blocks: the parallel configuration. It is very advantageous because in this type of setup, when
two devices are parallelized, the flow is divided in half, but the pressure drop is divided by a factor of four, thus alleviating the need for a second
pump. However, it necessitates splitting the main line using Y connectors, and it is seldom used because connectivity is awkward and
cumbersome.
Enter the Multi- port Apogee™ HD waterblock, and MCR Drive Rev3 Radiators. With two additional outlet ports for the Apogee™ HD and two
additional inlet ports for the MCR Drive Rev3 radiator, it is now possible to conveniently setup a high flow multi-block loop without using splitters.
We will show below that while it always remains preferable to keep the CPU waterblock in series with the main line whenever possible, all other
electronic devices in the loop are perfect candidates for parallelization. The resulting configuration is a mixed serial + parallel setup, i.e. the best
of both worlds!
The following flow-charts illustrate two extreme setups (CPU + tripe SLI + chipset + memory) and quantify an order of magnitude in flow
performance that can be gained from using a mixed serial + parallel configuration: